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May 17, 2021 NHTSA CAMPAIGN NUMBER: 21V362000
Front Lower Trailing Arms Not Forged Correctly
A broken front lower trailing arm may cause a loss of vehicle control, increasing the risk of a crash.
NHTSA Campaign Number: 21V362
Manufacturer Porsche Cars North America, Inc.
Components SUSPENSION
Potential Number of Units Affected 565
Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Taycan, Panamera, Panamera Turbo S, Panamera GTS, Panamera 4, Panamera 4 Sport Turismo, Panamera 4 Executive, Panamera 4S Executive, Panamera 4S, Panamera 4S E-Hybrid, and Panamera 4 E-Hybrid vehicles. The front lower trailing arms were not forged correctly and may break.
Remedy
Dealers will replace the front lower trailing arms, free of charge. Owner notification letters were mailed October 1, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche’s number for this recall is AMB2.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Check if your Porsche has a Recall
Overview
Due to a supplier production issue that has since been corrected, the right front lower control arms in the subject vehicles might not have been forged to specification, which could affect their long-term durability.
If the front lower control arm fractures, the vehicle may experience a potential deterioration or loss of steering control.
In order to avoid this, the lower trailing arm on the right front axle must be replaced on the affected vehicles.
As soon as parts become available, please arrange for this measure to be carried out on the affected vehicles immediately.
Model Year:
2021
Vehicle Type:
Taycan (Y1A)
Concerns:
Trailing arm on front axle, lower right
Information:
There is a possibility that trailing arms that do not meet the required specifications were installed on the lower right of the front axle on the affected vehicles.
If this is the case, there is a possibility that the lower trailing arm can break. As a result, we cannot rule out the possibility of impaired vehicle handling and possible loss of control of the vehicle.
Action required:
Replace trailing arm on front axle, lower right.
Model Line:
Panamera (971)
Model Year:
As of 2018 up to 2021
Concerns:
Trailing arm on front axle, lower right
Information:
There is a possibility that trailing arms that do not meet the required specifications were installed on the lower right of the front axle on the affected vehicles.
If this is the case, there is a possibility that the lower trailing arm can break. As a result, we cannot rule out the possibility of impaired vehicle handling and possible loss of control of the vehicle.
Action required:
Replace trailing arm on front axle, lower right.
SEOCONTENT-START
July 16, 2021
This notice applies to your vehicle:
WP1B
This notice is sent to you in accordance with the National Traffic and Motor
Vehicle Safety Act. Porsche has decided that a defect that relates to
motor vehicle safety exists in certain 2021 Model Year Porsche Panamera
and Taycan vehicles. Our records show that you are the current owner of a
vehicle affected by this recall.
What is the issue?
Due to a supplier production issue that has since been corrected, the
front right lower trailing arm on your vehicle may not have been forged to
specification, which could affect its durability. If the front lower trailing
arm fractures, your vehicle could experience a potential deterioration or
loss of control which could increase the risk of a crash. Until your vehicle is
remedied, please follow instructions to the right.
What should you do?
Please wait for our follow up letter to bring
your vehicle in for a remedy.
If prior to having this remedy performed
you notice any abnormal noises coming
from the front axle of your vehicle or you
notice a misalignment in your steering
wheel position, safely park your vehicle
and immediately contact your authorized
Porsche dealer.
To find your nearest authorized Porsche
dealer, visit: www.porsche.com/usa
If you require further assistance, you may
contact us at 1-800-PORSCHE or email
customersupport@porsche.com
What will Porsche do?
Porsche is currently preparing remedy parts. As soon as parts are ready, Porsche will send you another Recall letter asking
that you contact your authorized Porsche dealer for completion of this recall. Once available, the subject front lower trailing
arm will be replaced by your authorized Porsche dealer, free of charge.
Certain 2021 Model Year Porsche Panamera and Taycan Vehicles
Front Lower Trailing Arms
NHTSA ID 21V-362
IMPORTANT SAFETY RECALL (Interim Notice)
URGENT SAFETY RECALL
This is an important Safety Recall.
The remedy will be performed FREE
OF CHARGE to you.
100228317 – 1
Dear Mr. ,
Mr.
–
What if you are not the owner or operator of this vehicle?
If you are the lessor and registered owner of the vehicle identified in this action, the law requires you to forward this
letter immediately via first-class mail to the lessee within ten days of receipt.
If you have changed your address or have sold the referenced vehicle, please contact customer support at the
contact information above so we can update our records.
If you believe that the dealer or Porsche has failed or is unable to remedy the defect without charge or within a
reasonable amount of time, you may file a complaint to the Administrator, National Highway Traffic Safety
Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Vehicle Safety Hotline
at 1-888-327-4236 (TTY: 1-800-424-9153) or go to: https://www.safercar.gov.
We apologize for any inconvenience this matter may cause you. We are taking this action to help
ensure your safety and continued satisfaction with your vehicle.
Very truly yours,
Porsche Cars North America, Inc.
******************************************************************************************************************
Technical Information
Service
84/21 ENU AMB2 4
AMB2 – Replacing Lower Trailing Arm on Front Axle (Stop Delivery/Recall Campaign)
Model Line: Panamera (971)
Model Year: As of 2018 up to 2021
Concerns: Trailing arm on front axle, lower right
Information: There is a possibility that trailing arms that do notmeet the required specifications were
installed on the lower right of the front axle on the affected vehicles.
If this is the case, there is a possibility that the lower trailing arm can break. As a result, we cannot rule out
the possibility of impaired vehicle handling and possible loss of control of the vehicle.
Action required: Replace trailing arm on front axle, lower right.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information). This campaign affects 325
vehicles.
Required parts and materials
Parts Info: Part No. Designation
– Use
Qty.
V04015006O Front axle trailing arm, lower right 1 ea.
N 10628301 Hexagon flange bolt
– Spring strut to lower trailing arm
1 ea.
PAF104029 Hexagon collar nut
– Spring strut to lower trailing arm
1 ea.
Additional parts required if the camber on the front axle must be corrected during suspension
alignment:
Information
The camber on the front axle cannot be adjusted, but must be centered evenly within the tolerance
range by moving the front-axle carrier.
AfterSales Jun 22, 2021
Page 1 of 8
Service 4 AMB2 ENU 84/21
Technical Information
Part No. Designation
– Use
Qty.
N 91244301 Hexagon flange bolt M12 x 1.5 x 90
– Front-axle carrier to body
8 ea.
Also required for vehicles with V6 engine:
N 91260401 Hexagon flange bolt, M10 x 45
– Front-axle carrier to body
2 ea.
Materials: Required materials (usually already available at the Porsche dealer):
Part No. Designation Qty.
00004330508 Mounting paste
– Wheel centring surface to wheel hub
100 g/ 3.5 oz tube
(approx. 2 grams/
0.07 oz required per
vehicle)
Required tools
Tools: • Suitable transmission and engine jack, e.g. VAS 6931 Engine and gearbox jack
• T10187 – Press-out tool
• T10188 – Insert tool
• VW552 – Spring compressor
• VAS 6826 Steering wheel alignment gauge
• VAS 6918 Quick-clamping unit
• 9229/1 – Puller hook
• Torque/torque angle wrench, 20 – 400 Nm (15 – 296 ftlb.), e.g. VAS 6942 Digital torque
wrench, 20 – 400 Nm(15 – 296 ftlb.) or equivalent
• Torque screwdriver, 1.5 – 3 Nm (1 – 2 ftlb.), e.g. VAS 6494 Torque screwdriver, 1.5 – 3.0 Nm
(1-2 ftlb.) or equivalent
• Torque wrench, 2 – 10 Nm (1.5 – 7.5 ftlb.), e.g. VAG1783Torque wrench, 2 – 10 Nm (1.5
– 7.5 ftlb.)
• Torque wrench, 40 – 200 Nm (30 – 148 ftlb.), e.g. VAG 1332 Torque wrench, 40 – 200 Nm (30
– 148 ftlb.)
• 9900 – PIWIS Tester 3
• Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A
Additional tools required for calibrating the driver assistance systems:
• VAS 6430/1A Adjustment device with reflector
• VAS 6430/3 ACC reflectormirror
• VAS 6430/4 Lane DepartureWarning Calibration Plate
• VAS 6430/6 Night View Assist calibration unit
Jun 22, 2021
Page 2 of 8 AfterSales
• VAS 6350A – Calibration unit
Technical Information
Service
84/21 ENU AMB2 4
Replacing trailing arm on front axle, lower right
Work Procedure: 1 Remove right plenum panel cover. Workshop Manual ‘852219 Removing and installing plenum
panel cover’
2 Move the vehicle onto a lifting platform and raise it. Workshop Manual ‘4X00IN Lifting the vehicle’
3 Remove right front wheel. Workshop Manual ‘440519 Removing and installing wheel’
4 Remove front underbody cover. Workshop Manual ‘519219 Removing and installing front
underbody cover’
5 Remove front section of front wheel housing liner on the right.
For instructions see: Workshop Manual ‘505619 Removing and installing front wheel housing
liner’
6 Remove front air guide at the right side (behind charge-air cooler). Workshop Manual ‘211019
Removing and installing front air guide at the side (behind charge-air cooler)’
7 Replace lower trailing arm on front axle.
7.1 Remove trailing arm on front axle, lower right. Workshop Manual ‘401719 Removing and
installing lower trailing arm’
Control arm spoiler mounting
7.2 Remove control arm spoiler Control
arm spoiler mounting -1- on the previously
removed trailing arm.
To do this, unscrew fastening screw
Control arm spoiler mounting -2- and remove
the control arm spoiler from the old trailing
arm.
7.3 Position control arm spoiler Control arm
spoiler mounting -1- on the new trailing arm
and secure it with fastening screw Control
arm spoiler mounting -2-.
Tightening torque 8 Nm(6 ftlb.)
7.4 Install new trailing arm on the front axle, lower right. Workshop Manual ‘401719
Removing and installing lower trailing arm’
8 Install front air guide at the right side (behind charge-air cooler). Workshop Manual ‘211019
Removing and installing front air guide at the side (behind charge-air cooler)’
AfterSales Jun 22, 2021
Page 3 of 8
Service 4 AMB2 ENU 84/21
Technical Information
9 Install front section of front wheel housing liner on the right.
For instructions see: Workshop Manual ‘505619 Removing and installing front wheel housing
liner’
10 Install front underbody cover. Workshop Manual ‘519219 Removing and installing front
underbody cover’
11 Install right front wheel. Workshop Manual ‘440519 Removing and installing wheel’
12 Lower the vehicle and remove it from the lifting platform.
13 Install right plenum panel cover. Workshop Manual ‘852219 Removing and installing plenum
panel cover’
14 Perform suspension alignment and adjust the vehicle.
Information
The camber on the front axle cannot be adjusted, but must be centered evenly within the
tolerance range bymoving the front-axle carrier.
If the camber on the front axle must be adjusted, first adjust the front-axle carrier and screw it to the
body using the old fastening screws and then replace all relevant fastening screws one after
the other with new screws.
For instructions, see:
Workshop Manual ‘449503 Performing front and rear suspension alignment’
Workshop Manual ‘4495TW Adjustment values for suspension alignment’
15 After correcting the wheel alignment values, carry out the following required subsequent work.
15.1 Calibrate steering-angle sensor. Workshop Manual ‘456005 Initialising and calibrating
steering-angle sensor’
15.2 Teach steering lock settings for the power-steering gear. Workshop Manual ‘489025
Teaching power-steering gear’
Information
The front camera and driver assistance systems must only be calibrated if the axle geometry
needs to be adjusted during suspension alignment.
15.3 Calibrate front camera.
For instructions see: Workshop Manual ‘963855 Replacing front camera’
15.4 If installed: Calibrate control unit for distance measuring sensor (ACC). Workshop
Manual ‘278515 Adjusting control unit for distance measuring sensor’
Jun 22, 2021
Page 4 of 8 AfterSales
Technical Information
Service
84/21 ENU AMB2 4
15.5 If installed: Calibrate infrared camera.
For instructions see: Workshop Manual ‘908055 Replacing infrared camera’
16 Enter the campaign in the Warranty and Maintenance booklet.
References: Workshop Manual ‘211019 Removing and installing front air guide at the side (behind charge-air
cooler)’
Workshop Manual ‘278515 Adjusting control unit for distance measuring sensor’
Workshop Manual ‘4X00IN Lifting the vehicle’
Workshop Manual ‘401719 Removing and installing lower trailing arm’
Workshop Manual ‘440519 Removing and installing wheel’
Workshop Manual ‘449503 Performing front and rear suspension alignment’
Workshop Manual ‘4495TW Adjustment values for suspension alignment’
Workshop Manual ‘456005 Initialising and calibrating steering-angle sensor’
Workshop Manual ‘489025 Teaching power-steering gear’
Workshop Manual ‘505619 Removing and installing front wheel housing liner’
Workshop Manual ‘519219 Removing and installing front underbody cover’
Workshop Manual ‘852219 Removing and installing plenum panel cover’
Workshop Manual ‘908055 Replacing infrared camera’
Workshop Manual ‘963855 Replacing front camera’
Warranty processing
Information:
Information
The working times specified below were determined specifically for carrying out this campaign and may
differ from the working times published in the Labor Operation List in PIWIS.
Scope 1: Replacing trailing arm on front axle, lower right
This scope must be invoiced if adjustment of the axle geometry was not required during suspension
alignment and consequently the front camera and further driver assistance systems did not have to be
calibrated.
Working time:
Replacing trailing arm on front axle, lower right
Includes: Removing and installing plenum panel cover
Raising and lowering the vehicle
Removing and installing right front wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front air guide on the right side
(behind charge-air cooler)
Converting control arm spoiler
Labor time: 359 TU
AfterSales Jun 22, 2021
Page 5 of 8
Service 4 AMB2 ENU 84/21
Technical Information
Performing suspension alignment
Calibrating steering-angle sensor
Teaching steering lock settings
Without: Calibrating control unit for distance measuring sensor
Calibrating front camera
Calibrating Night View Assist
Parts required:
V04015006O Front axle trailing arm, lower right 1 ea.
N 10628301 Hex flange bolt 1 ea.
PAF104029 Hexagon collar nut 1 ea.
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Scope 2: Replacing trailing arm on front axle, lower right
– also calibrating front camera without further driver assistance systems
• without adaptive cruise control (ACC) (M-no. 3V1 or 8T3)
• without Night View Assist (M-no. 9R1)
Working time:
Replacing trailing arm on front axle, lower right
Includes: Removing and installing plenum panel cover
Raising and lowering the vehicle
Removing and installing right front wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front air guide on the right side
(behind charge-air cooler)
Converting control arm spoiler
Performing suspension alignment and adjusting the vehicle
Calibrating steering-angle sensor
Teaching steering lock settings
Calibrating front camera
Without: Calibrating control unit for distance measuring sensor
Calibrating Night View Assist
Labor time: 381 TU
Jun 22, 2021
Page 6 of 8 AfterSales
Technical Information
Service
84/21 ENU AMB2 4
Parts required:
V04015006O Front axle trailing arm, lower right 1 ea.
N 10628301 Hex flange bolt 1 ea.
PAF104029 Hexagon collar nut 1 ea.
Additional parts required if the camber on the front axle was corrected:
N 91244301 Hexagon flange bolt, M12 x 1.5 x 90 8 ea.
Also required for vehicles with V6 engine:
N 91260401 Hexagon flange bolt, M10 x 45 2 ea.
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Scope 3: Replacing trailing arm on front axle, lower right
– also calibrating front camera and driver assistance systems
• with adaptive cruise control (ACC) (M-no. 3V1 or 8T3)
and/or
• with Night View Assist (M-no. 9R1)
Working time:
Replacing trailing arm on front axle, lower right
Includes: Removing and installing plenum panel cover
Raising and lowering the vehicle
Removing and installing right front wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front air guide on the right side
(behind charge-air cooler)
Converting control arm spoiler
Performing suspension alignment and adjusting the vehicle
Calibrating steering-angle sensor
Teaching steering lock settings
Calibrating front camera
Calibrating control unit for distance measuring sensor
Labor time: 422 TU
AfterSales Jun 22, 2021
Page 7 of 8
Service 4 AMB2 ENU 84/21
Technical Information
Calibrating Night View Assist
Parts required:
V04015006O Front axle trailing arm, lower right 1 ea.
N 10628301 Hex flange bolt 1 ea.
PAF104029 Hexagon collar nut 1 ea.
Additional parts required if the camber on the front axle was corrected:
N 91244301 Hexagon flange bolt, M12 x 1.5 x 90 8 ea.
Also required for vehicles with V6 engine:
N 91260401 Hexagon flange bolt, M10 x 45 2 ea.
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed. © 2021 Porsche Cars North America, Inc.
Jun 22, 2021
Page 8 of 8 AfterSales
******************************************************************************************************************
Technical Information
Service
84/21 ENU AMB2 4
AMB2 – Replacing Lower Trailing Arm on Front Axle (Stop Delivery/Recall Campaign)
Revision: This bulletin replaces bulletin Group 4 84/21 AMB2 (Y1A), dated June 22, 2021.
Model Year: 2021
Vehicle Type: Taycan (Y1A)
Concerns: Trailing arm on front axle, lower right
Information: There is a possibility that trailing arms that do notmeet the required specifications were
installed on the lower right of the front axle on the affected vehicles.
If this is the case, there is a possibility that the lower trailing arm can break. As a result, we cannot rule out
the possibility of impaired vehicle handling and possible loss of control of the vehicle.
Action required: Replace trailing arm on front axle, lower right.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required parts and materials
Parts Info: Part No. Designation
– Use
Qty.
V04015006N Front axle trailing arm, lower right 1 ea.
PAF108544 Oval-head screw,M12 x 1.5 x 90
– Spring strut to lower trailing arm
1 ea.
PAF909664 Hexagon collar nut, M12 x 1.5
– Spring strut to lower trailing arm
1 ea.
Additional parts required if the camber on the front axlemust be corrected during suspension
alignment:
Information
The camber on the front axle cannot be adjusted, but must be centered evenly within the tolerance
range by moving the front-axle carrier.
AfterSales Nov 18, 2021
Page 1 of 7
Service 4 AMB2 ENU 84/21
Technical Information
Part No. Designation
– Use
Qty.
N 91244301 Hexagon flange bolt M12 x 1.5 x 90
– Front-axle carrier to body
6 ea.
Materials: Required materials (usually already available in the Porsche Centre):
Part No. Designation Qty.
00004330508 Mounting paste
– Wheel centring surface to wheel hub
Stop Delivery/Recall
campaign
Required tools
Tools: • Suitable transmission and engine jack, e.g. VAS 6931 Engine and gearbox jack
• T10187 – Press-out tool
• VAS 6826 Steering wheel alignment gauge
• VAS 6918 Quick-clamping unit
• P90009 – P90009 – Puller
• VAS 261 019 – Ratchet ring wrench socket, a/f 19
• T90009 – T90009 – Insert tool
• Torque/torque angle wrench, 20 – 400 Nm (15 – 296 ftlb.), e.g. VAS 6942 Digital torque
wrench, 20 – 400Nm (15 – 296 ftlb.)
• Torque screwdriver, 1.5 – 3 Nm (1 – 2 ftlb.), e.g. VAS 6494 Torque screwdriver, 1.5 – 3.0 Nm (1
– 2 ftlb.)
• Torque wrench, 2 – 10 Nm (1.5 – 7.5 ftlb.), e.g. VAG1783 Torquewrench, 2 – 10Nm(1.5 – 7.5
ftlb.)
• Torque wrench, 40 – 200 Nm (30 – 148 ftlb.), e.g. VAG 1332 Torque wrench, 40 – 200 Nm(30
– 148 ftlb.)
• 9900 – PIWIS Tester 3
• Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A
Additional tools required for calibrating the driver assistance systems:
• Adjustment device with reflector
• ACC reflectormirror
• Lane DepartureWarning Calibration Plate
• VAS 6350A – Calibration unit
Replacing trailing arm on front axle, lower right
Work Procedure: 1 Move the vehicle onto a lifting platform and raise it. Workshop Manual ‘4X00IN Lifting the vehicle’
2 Remove right front wheel. Workshop Manual ‘440519 Removing and installing wheel’
Nov 18, 2021
Page 2 of 7 AfterSales
Technical Information
Service
84/21 ENU AMB2 4
3 Remove front right wheel housing liner. Workshop Manual ‘505619 Removing and installing front
wheel housing liner’
4 Remove front section of wheel housing liner on the right. Workshop Manual ‘50561903 Removing
and installing front wheel housing liner (front section)’
5 Remove front underbody cover. Workshop Manual ‘519219 Removing and installing front
underbody cover’
6 Loosen condenser.
For instructions, see: Workshop Manual ‘875019 Removing and installing condenser’
7 Loosen the front spring strut or air-spring strut on the lower trailing arm.
For instructions see:
Workshop Manual ‘408519 Removing and installing front spring strut’
Workshop Manual ‘433019 Removing and installing front air-spring strut’
8 Replace lower trailing arm on front axle. Workshop Manual ‘401719 Removing and installing
lower trailing arm’
9 Secure the front spring strut or air-spring strut on the lower trailing arm.
For instructions see:
Workshop Manual ‘408519 Removing and installing front spring strut’
Workshop Manual ‘433019 Removing and installing front air-spring strut’
10 Secure condenser.
For instructions, see: Workshop Manual ‘875019 Removing and installing condenser’
11 Install front underbody cover. Workshop Manual ‘519219 Removing and installing front
underbody cover’
12 Install front section of wheel housing liner on the right. Workshop Manual ‘50561903 Removing
and installing front wheel housing liner (front section)’
13 Install front wheel housing liner on the right. Workshop Manual ‘505619 Removing and installing
front wheel housing liner’
14 Install right front wheel. Workshop Manual ‘440519 Removing and installing wheel’
15 Lower the vehicle and remove it from the lifting platform.
16 Perform suspension alignment and adjust the vehicle.
AfterSales Nov 18, 2021
Page 3 of 7
Service 4 AMB2 ENU 84/21
Technical Information
Information
The camber on the front axle cannot be adjusted, but must be centered evenly within the
tolerance range bymoving the front-axle carrier.
If the camber on the front axle must be adjusted, first adjust the front-axle carrier and screw it to the
body using the old fastening screws and then replace all relevant fastening screws one after
the other with new screws.
For instructions, see:
Workshop Manual ‘449503 Performing front and rear suspension alignment’
Workshop Manual ‘4495TW Adjustment values for suspension alignment’
17 After correcting the wheel alignment values, carry out the following required subsequent work.
17.1 Calibrate steering-angle sensor. Workshop Manual ‘456005 Initialising and calibrating
steering-angle sensor’
17.2 Teach power-steering gear. Workshop Manual ‘489025 Teaching power-steering gear’
Information
The front camera and driver assistance systems must only be calibrated if the axle geometry
needs to be adjusted during suspension measurement.
17.3 Calibrate front camera.
For instructions see: Workshop Manual ‘963855 Replacing front camera’
17.4 If installed: Calibrate control unit for distance measuring sensor (ACC).
For instructions, see: Workshop Manual ‘278515 Adjusting control unit for distance
measuring sensor’
17.5 If installed: Calibrate infrared camera.
For instructions see: Workshop Manual ‘908055 Replacing camera for night vision
system’
18 Enter the campaign in the Warranty and Maintenance booklet.
References: Workshop Manual ‘408519 Removing and installing front spring strut’
Workshop Manual ‘433019 Removing and installing front air-spring strut’
Workshop Manual ‘401719 Removing and installing lower trailing arm’
Workshop Manual ‘875019 Removing and installing condenser’
Workshop Manual ‘519219 Removing and installing front underbody cover’
Workshop Manual ‘50561903 Removing and installing front wheel housing liner (front section)’
Workshop Manual ‘505619 Removing and installing front wheel housing liner’
Workshop Manual ‘440519 Removing and installing wheel’
Workshop Manual ‘449503 Performing front and rear suspension alignment’
Workshop Manual ‘4495TW Adjustment values for suspension alignment’
Nov 18, 2021
Page 4 of 7 AfterSales
Technical Information
Service
84/21 ENU AMB2 4
Workshop Manual ‘456005 Initialising and calibrating steering-angle sensor’
Workshop Manual ‘489025 Teaching power-steering gear’
Workshop Manual ‘278515 Adjusting control unit for distance measuring sensor’
Workshop Manual ‘963855 Replacing front camera’
Workshop Manual ‘908055 Replacing camera for night vision system’
Warranty processing
Information:
Information
The working times specified below were determined specifically for carrying out this campaign and may
differ from the working times published in the Labor Operation List in PIWIS.
Scopes 1 – 3: Valid for Panamera (971). See relevant Technical Information for these vehicle types.
Scope 4: Replacing trailing arm on front axle, lower right
This scope must be invoiced if adjustment of the axle geometry was not required during suspension
alignment and consequently the front camera and further driver assistance systems did not have to be
calibrated.
Working time:
Replacing trailing arm on front axle, lower right
Includes: Raising and lowering the vehicle
Removing and installing front right wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front right wheel housing liner
Loosening and securing condenser
Performing suspension alignment
Calibrating steering-angle sensor
Teaching power-steering gear
Without: Calibrating control unit for distance measuring sensor
Calibrating front camera
Calibrating night vision system
Labor time: 259 TU
Parts required:
V04015006N Front axle trailing arm, lower right 1 ea.
PAF108544 Oval-head screw, M12 x 1.5 x 90 1 ea.
PAF909664 Hexagon collar nut, M12 x 1.5 1 ea.
AfterSales Nov 18, 2021
Page 5 of 7
Service 4 AMB2 ENU 84/21
Technical Information
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Scope 5: Replacing trailing arm on front axle, lower right
– also calibrating front camera without further driver assistance systems
• without adaptive cruise control (ACC) (M-no. 3V2 or 3V9 or 8T8)
• without Night View Assist (M-no. 9R1)
Working time:
Replacing trailing arm on front axle, lower right
Includes: Raising and lowering the vehicle
Removing and installing front right wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front right wheel housing liner
Loosening and securing condenser
Performing suspension alignment and adjusting the vehicle
Calibrating steering-angle sensor
Teaching power-steering gear
Calibrating front camera
Without: Calibrating control unit for distance measuring sensor
Calibrating night vision system
Labor time: 622 TU
Parts required:
V04015006N Front axle trailing arm, lower right 1 ea.
PAF108544 Oval-head screw, M12 x 1.5 x 90 1 ea.
PAF909664 Hexagon collar nut, M12 x 1.5 1 ea.
Additional parts required if the camber on the front axle was corrected:
N 91244301 Hexagon flange bolt, M12 x 1.5 x 90 6 ea.
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Nov 18, 2021
Page 6 of 7 AfterSales
Technical Information
Service
84/21 ENU AMB2 4
Scope 6: Replacing trailing arm on front axle, lower right
– also calibrating front camera and driver assistance systems
• with adaptive cruise control (ACC) (M-no. 3V2 or 3V9 or 8T8)
and/or
• with Night View Assist (M-no. 9R1)
Working time:
Replacing trailing arm on front axle, lower right
Includes: Raising and lowering the vehicle
Removing and installing front right wheel
Removing and installing front underbody cover
Removing and installing front section of front wheel housing
liner on the right
Removing and installing front right wheel housing liner
Loosening and securing condenser
Performing suspension alignment and adjusting the vehicle
Calibrating steering-angle sensor
Teaching power-steering gear
Calibrating front camera
Calibrating control unit for distance measuring sensor
Calibrating night vision system
Labor time: 650 TU
Parts required:
V04015006N Front axle trailing arm, lower right 1 ea.
PAF108544 Oval-head screw, M12 x 1.5 x 90 1 ea.
PAF909664 Hexagon collar nut, M12 x 1.5 1 ea.
Additional parts required if the camber on the front axle was corrected:
N 91244301 Hexagon flange bolt, M12 x 1.5 x 90 8 ea.
Materials required:
00004330508 Mounting paste 0.02 ea.
Damage Code AMB2 099 000 2
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed. © 2021 Porsche Cars North America, Inc.
AfterSales Nov 18, 2021
Page 7 of 7
******************************************************************************************************************
October 1, 2021
This notice applies to your vehicle:
WP0
This notice is sent to you in accordance with the National Traffic and Motor
Vehicle Safety Act. Porsche has decided that a defect that relates to motor
vehicle safety exists in certain 2021 Model Year Porsche Panamera and
Taycan vehicles. Our records show that you are the current owner of a
vehicle affected by this recall.
What is the issue?
Due to a supplier production issue that has since been corrected, the
front right lower trailing arm on your vehicle may not have been forged to
specification, which could affect its durability. If the front lower trailing
arm fractures, your vehicle could experience a potential deterioration or
loss of control which could increase the risk of a crash. Until your vehicle is
remedied, please follow instructions to the right.
What should you do?
Please contact any authorized Porsche
dealer to schedule an appointment to have
this recall performed as soon as possible,
and to arrange for alternate transportation, if
requested.
If prior to having this remedy performed
you notice any abnormal noises coming
from the front axle of your vehicle or you
notice a misalignment in your steering
wheel position, safely park your vehicle
and immediately contact your authorized
Porsche dealer.
To locate your nearest authorized Porsche
dealer, visit: www.porsche.com/usa
This is an important Safety Recall.
The remedy will take up to 5 hours to perform, however depending on the dealer’s work schedule, it may be necessary to
make your vehicle available for a longer period of time.
What will Porsche do?
Porsche is conducting a safety recall to replace the subject trailing arm on your vehicle. This remedy will be carried out
free of charge.
Certain 2021 Model Year Porsche Panamera and Taycan Vehicles
Front Lower Trailing Arms
NHTSA ID 21V-362
IMPORTANT SAFETY RECALL
URGENT SAFETY RECALL
This is an important Safety Recall.
The remedy will be performed FREE
OF CHARGE to you.
Dear Mr. Miller,
Mr.
–
What if you are not the owner or operator of this vehicle?
If you are the lessor and registered owner of the vehicle identified in this action, the law requires you to forward this
letter immediately via first-class mail to the lessee within ten days of receipt. If you have changed your address or
sold the vehicle, please contact customer support so we can update our records.
Can we assist you further?
Please be aware that if you require any assistance in making an appointment to have this recall
performed, please call or write:
Porsche Cars North America, Inc.
Attn: Customer Support
One Porsche Drive
Atlanta, GA 30354
1-800-PORSCHE
customersupport@porsche.com
If you still cannot obtain satisfaction, and your dealer or Porsche is unable to remedy the defect
without charge or within a reasonable amount of time, you may file a complaint with:
Administrator
National Highway Traffic Safety Administration 1200 New Jersey Avenue, S.E.
Washington, D.C. 20590
or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153) or go to
http:/ /www.safercar.gov.
We apologize for any inconvenience this matter may cause you. We are taking this action to help
ensure your safety and continued satisfaction with your vehicle.
Very truly yours,
Porsche Cars North America, Inc.
******************************************************************************************************************
1
AMB2 Stop Delivery/Recall campaign –
Replacing lower trailing arms on front axle
Update 9/20/21
Please be advised that parts can now be ordered via PDX for all remaining AMB2 VINs. A full VIN list of all
affected AMB2 cars has been added to this posting.
Update 7/6/21
Please note that initial parts stock has arrived to PDCs to satisfy grounded vehicles with Stop Delivery AMB2.
Parts may be ordered via PRMS ticket to PCNA Parts Support for vehicles in inventory and repairs may begin.
Vehicles currently at port will be completed at port and therefore dealers should not order parts for those
vehicles.
A list of all 128 AMB2 affected vehicles in dealer inventory is attached.
For escalated customer cases relating to this recall, please place a request for parts via PRMS.
AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
2
IMPORTANT REMINDER
IT IS A VIOLATION OF FEDERAL LAW FOR DEALERS
TO DELIVER TO CUSTOMERS NEW VEHICLES IN THEIR
INVENTORY AFFECTED BY THIS NOTIFICATION UNTIL
THESE VEHICLES ARE REMEDIED. DEALERS SHOULD
NOT SELL, LEASE, RENT, OR LOAN ANY NEW OR
USED VEHICLES IN DEALER INVENTORY AFFECTED
BY THIS NOTIFICATION PRIOR TO REMEDY. DEALERS
GROUNDING LEASE RETURNS SHOULD REMEDY ALL
AFFECTED GROUNDED VEHICLES.
AMB2 Stop Delivery/Recall campaign –
Replacing lower trailing arm on front axle
Overview
Due to a supplier production issue that has since been corrected, the right front lower control arms in the
subject vehicles might not have been forged to specification, which could affect their long-term durability.
If the front lower control arm fractures, the vehicle may experience a potential deterioration or loss of steering
control.
In order to avoid this, the lower trailing arm on the right front axle must be replaced on the affected vehicles.
As soon as parts become available, please arrange for this measure to be carried out on the affected vehicles
immediately.
AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
3
Model type Taycan (Y1A)
Panamera (971)
Model year 2021
Number 565
Key dates
Technical Information Availability Calendar Week 24
Availability of parts ordering 30% by mid to late June
Required parts – Taycan
Part No. Designation Quantity/vehicle Parts return*
V04015006N Front-axle trailing arm,
right
1 unit No
PAF108544 Oval-head screw with
multiple-tooth head
M12 x 1.5 x 90
1 units No
PAF909664 Hexagon collar nut,
self-locking, M12 x 1.5
1 units No
Additional parts required if the camber on the front axle must be corrected during suspension alignment:
Part No. Designation Quantity/vehicle Parts return*
N 91244301 Hexagon flange bolt with
hexagon socket head,
M12 x 1.5 x 90
6 units No
Parts required – Panamera
Part No. Designation Quantity/vehicle Parts return*
V04015006O Front-axle trailing arm,
right
1 unit No
N 10628301 Hex flange bolt 1 units No
AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
4
PAF104029 Hexagon collar nut, M12 x
1.5
1 units No
Additional parts required if the camber on the front axle must be corrected during suspension alignment:
Part No. Designation Quantity/vehicle Parts return*
N 91244301 Hexagon flange bolt with
hexagon socket head,
M12 x 1.5 x 90
8 units No
N 91260401 Hexagon flange bolt with
hexagon socket head,
M12 x 45
– V6 only
2 units No
Required materials – Taycan/Panamera
Usually already available in the Porsche Dealer
Part No. Designation Quantity/vehicle
00004330508 Mounting paste 100 g tube (approx. 2 g per
vehicle
is required)
*The parts must be stored until such time as the related warranty or campaign claim has been credited.
If a barcode is generated with the credit note, the affected part must be sent to Porsche AG as usual. If
no barcode is generated with the credit note, the part can go directly into the genuine remanufactured parts
process or be scrapped.
Ordering required parts
This post will be updated once parts are available for ordering.
Warranty processing
Scope 1: Replacing trailing arm on front axle, lower right
– Panamera
– Without calibrating the driver assistance systems
Damage Code AMB2 99 000
Repair Code 2
Working time 359 TU
Scope 2: Replacing trailing arm on front axle, lower right
AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
5
– Panamera
– Calibrating front camera without further driver assistance systems
Damage Code AMB2 99 000
Repair Code 2
Working time 381 TU
Scope 3: Replacing trailing arm on front axle, lower right
– Panamera
– Calibrating front camera and driver assistance systems
• Adaptive cruise control ACC (M-no. 3V1 or 8T3)
• Night View Assist (M-no. 9R1)
Damage Code AMB2 99 000
Repair Code 2
Working time 422 TU
Scope 4: Replacing trailing arm on front axle, lower right
– Taycan
– Without calibrating the driver assistance systems
Damage Code AMB2 99 000
Repair Code 2
Working time 259 TU
Scope 5: Replacing trailing arm on front axle, lower right
– Taycan
– Calibrating front camera without further driver assistance systems
Damage Code AMB2 99 000
Repair Code 2
Working time 460 TU
Scope 6: Replacing trailing arm on front axle, lower right
– Taycan
– Calibrating front camera and driver assistance systems
• Adaptive cruise control ACC (M-no. 3V2 or 3V9 or 8T8)
• Night View Assist (M-no. 9R1)
Damage Code AMB2 99 000
Repair Code 2
Working time 487 TU
Please enter the campaign that was carried out in the Warranty and Maintenance booklet for the vehicle.
AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
6
Porsche Mobility
If requested, the mobility of the affected customer can be assured by offering a suitable replacement vehicle.
Please invoice this additional service with the campaign scope via WWS.
Further information
Work instruction TI No. 84/21, Group 4, Service, AMB2
Vehicle list and allocation See PCSS or attached VIN list for reference
Technical Information See PCSS or Aftersales Document Database
******************************************************************************************************************
SEOCONTENT-END
8 Affected Products
Vehicles
MAKE | MODEL | YEAR |
PORSCHE | PANAMERA | 2021 |
PORSCHE | PANAMERA 4 | 2021 |
PORSCHE | PANAMERA 4 E-HYBRID | 2021 |
PORSCHE | PANAMERA 4S | 2021 |
PORSCHE | PANAMERA 4S E-HYBRID | 2021 |
PORSCHE | PANAMERA GTS | 2021 |
PORSCHE | PANAMERA TURBO S | 2021 |
PORSCHE | TAYCAN | 2021 |
12 Associated Documents
Remedy Instructions and TSB
RCRIT-21V362-1214.pdf 192.795KB
ISSUED Interim Owner Notification Letter(Part 577)
RIONL-21V362-0872.pdf 112.152KB
Remedy Instructions and TSB
RCRIT-21V362-5015.pdf 146.256KB
Defect Notice 573 Report
RCLRPT-21V362-4141.PDF 219.844KB
Recall Acknowledgement
RCAK-21V362-8991.pdf 645.642KB
Recall 573 Report-Amendment 1
RCLRPT-21V362-9167.PDF 219.873KB
Recall Quarterly Report #1, 2021-4
RCLQRT-21V362-8935.PDF 211.145KB
Recall Quarterly Report #1, 2021-4
RCLQRT-21V362-8844.PDF 211.146KB
Manufacturer Notices(to Dealers,etc) – AMB2 Stop Delivery/Recall campaign – Replacing lower trailing arms on front axle
RCMN-21V362-9724.pdf 134.685KB
Remedy Instructions and TSB
RCRIT-21V362-1010.pdf 60.717KB
Part 577 Owner Notification Envelope
RONE-21V362-4329.pdf 137.988KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V362-8860.pdf 180.122KB
Latest Recalls Documents
For the Latest and Most Recent Recalls Information Visit the link below…
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V362&docType=RCL
- 100% brand new aftermarket parts.
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Last update on 2024-04-06 / Affiliate links / Images from Amazon Product Advertising API
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