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September 8, 2021 NHTSA CAMPAIGN NUMBER: 21V697000
Pressure Input Rod On Brake Booster May Be Loose
A detached pressure input rod will cause the brake pedal to fail, increasing the risk of a crash.
NHTSA Campaign Number: 21V697
Manufacturer Porsche Cars North America, Inc.
Components SERVICE BRAKES, HYDRAULIC
Potential Number of Units Affected 11
Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 911 Carrera and Taycan vehicles. The pressure input rod connection on the brake booster may be loose and could detach.
Remedy
Dealers will repair or replace the brake booster as necessary, free of charge. Owner notification letters were mailed October 28, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche’s number for this recall is AMB9.
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.nhtsa.gov.
Check if your Porsche has a Recall
Overview
On the affected vehicles, there is a possibility that the screw connection of the pressure input rod of the brake booster was not carried out according to specifications.
As a result, the pressure input rod may become detached from the brake booster over the running time of the vehicle. If the pressure input rod is detached, it is not possible to brake the vehicle using the brake pedal. The emergency braking function via the electric parking brake is still available without restriction.
To avoid possible detachment of the pressure input rod, the affected bolted joint connection will be checked and, if necessary, the brake booster will be replaced/repaired.
Model Year:
As of 2020 up to 2021
Concerns:
Information:
On the affected vehicles, the screw of the brake booster’s pressure input rod may not have been connected according to specifications.
As a result, the pressure input rod may become loose from the brake booster over the vehicle’s service life. If the pressure input rod is loose, the vehicle cannot be braked using the brake pedal. The emergency brake function via the electric parking brake is still available however without restrictions.
Action required:
Rework the brake booster.
4 Affected Products
Vehicles
MAKE | MODEL | YEAR |
PORSCHE | 911 CARRERA | 2020-2021 |
PORSCHE | TAYCAN | 2020-2021 |
11 Associated Documents
Defect Notice 573 Report
RCLRPT-21V697-6539.PDF 214.187KB
Recall Acknowledgement
RCAK-21V697-8584.pdf 645.687KB
Part 577 Owner Notification Envelope
RONE-21V697-7814.pdf 139.533KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V697-1421.pdf 284.742KB
Recall 573 Report-Amendment 1
RCLRPT-21V697-8460.PDF 214.278KB
Recall 573 Report-Amendment 2
RCLRPT-21V697-7304.PDF 214.303KB
Remedy Instructions and TSB
RCRIT-21V697-8265.pdf 1905.779KB
Recall Quarterly Report #1, 2021-4
RCLQRT-21V697-1208.PDF 211.152KB
Remedy Instructions and TSB
RCRIT-21V697-4447.pdf 1993.204KB
Manufacturer Notices(to Dealers,etc) – AMB9 Recall Campaign Reworking brake booster
RCMN-21V697-2306.pdf 130.499KB
Recall Quarterly Report #2, 2022-1
RCLQRT-21V697-9447.PDF 211.251KB
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=21V697&docType=RCL
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Technical Information Service 141/21ENU AMB9 4 AMB9 – Reworking Brake Booster (Recall Campaign ) Vehicle Type: Taycan (Y1A)/Taycan 4S (Y1A)/Taycan Turbo (Y1A)/Taycan Turbo S (Y1A) Taycan 4S Cross Turismo (Y1B) Model Year: As of 2020 up to 2021 Concerns: Brake booster Information: On the affected vehicles, the screw of the brake booster’s pressure input rodmay not have been connected according to specifications. As a result, the pressure input rod may become loose from the brake booster over the vehicle’s service life. If the pressure input rod is loose, the vehicle cannot be braked using the brake pedal. The emergency brake function via the electric parking brake is still available however without restrictions. Action required: Rework the brake booster. Affected Vehicles: Only vehicles assigned to the campaign (see also PCSS Vehicle Information). AfterSales Oct 6, 2021 Page 1 of 7 4 AMB9 ENU Seervic 141/21 Technical Information Installation Position: Installation position of brake booster 1 – Brake booster (reworking) Required tools Tools: • Marker pen • Open-ended wrench a/f7 • Open-ended wrench a/f 16 • Torque wrench, 6-50 Nm (4.5-37 ftlb.), e.g. VAG 1331A Torque wrench, 6-50 Nm (4.5-37 ftlb.) • Open-ended wrench attachment, for torque wrench a/f 16 (This tool will only be auto-shipped to affected dealers by this campaign) Preparatory work Work Procedure: 1 Set driver seat to rearmost position. 2 Place steering wheel in upper position. 3 Remove cover under dashboard (driver’s side). Workshop Manual ‘70191901 Removing and installing trim panel for dashboard (driver’s side)’ Oct 6, 2021 Page 2 of 7 AfterSales Technical Information Service 141/21ENU AMB9 4 Reworking brake booster Work Procedure: Information Do not pull on or put pressure on the brake pedal while working on the brake booster pressure input rod. Installation location of dust glove on pressure input rod 1 Carefully press the dust glove on the pressure input rod Installation location of dust glove on pressure input rod -1- back by approx. 1 cm/ 0.39 in with your hand Pressure input rod dust glove -Arrow-. Pressure input rod dust glove AfterSales Oct 6, 2021 Page 3 of 7 4 Technical Information Screw connection for pressure input rod 2 Carefully pull on screw connection for the pressure input rod using open-ended wrench a/f 7 Screw connection for pressure input rod -1- and torque wrench using open-ended wrench attachment a/f 16 Screw connection for pressure input rod -2-. torque 10 Nm (7.5 inch) Marking on screw connection 3 Mark both sides of the screw connection with a continuous line Marking on screw connection -1-. Oct 6, 2021 Page 4 of 7 AfterSales AMB9 ENU Seervic 141/21 Technical Information Service 141/21ENU AMB9 4 Pressure input rod 4 Turn the pressure input rod using an open-ended wrench (a/f 16) Pressure input rod -1- 45 degrees (counterclockwise) Pressure input rod -in direction of arrow-. Position of marking 5 Check that the marking is then still at the same position. 5.1 If the marking is still at the same position Position of marking -1-, continue with Step 6. 5.2 If the marking is at a different position Position of marking -2-, repeat the procedure once, starting from Step 2. Information If the screw connection of the pressure input rod can still be turned, replace the brake booster in consultation with Technical Support. Workshop Manual ‘477019 Removing and installing brake booster’ AfterSales Oct 6, 2021 Page 5 of 7 4 Technical Information Pressure input rod dust glove 6 Carefully pull the dust glove on the pressure input rod back to Pressure input rod dust glove -1- its original position with your hand Pressure input rod dust glove -2-. Concluding work Work Procedure: 1 Install cover under dashboard (driver’s side). Workshop Manual ‘702219 Removing and installing cover under dashboard (driver’s side)’ 2 Return steering wheel to its original position. 3 Return driver seat to its original position. 4 Enter the campaign in the Warranty and Maintenance booklet. Warranty processing Scope 1: • Valid for Taycan (Y1A/Y1B) Working time: Reworking brake booster Labor time: 44 TU Oct 6, 2021 Page 6 of 7 AfterSales Includes: removing and installing cover under dashboard (driver’s side) Damage Code AMB9 099 000 1 AMB9 ENU Seervic 141/21 Technical Information Service 141/21ENU AMB9 4 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 Oct 6, 2021 Page 7 of 7
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Technical Information Service 141/21ENU AMB9 4 AMB9 – Reworking Brake Booster (Recall Campaign) Vehicle Type: 911 Carrera (992) / 911 Carrera S (992) / 911 Carrera 4 (992) / 911 Carrera 4S (992) / 911 Targa 4 (992) / 911 Targa 4S (992) Model Year: As of 2020 up to 2021 Concerns: Brake booster Information: On the affected vehicles, the screw of the brake booster’s pressure input rodmay not have been connected according to specifications. As a result, the pressure input rod may become loose from the brake booster over the vehicle’s service life. If the pressure input rod is loose, the vehicle cannot be braked using the brake pedal. The emergency brake function via the electric parking brake is still available however without restrictions. Action required: Rework the brake booster. Affected Vehicles: Only vehicles assigned to the campaign (see also PCSS Vehicle Information). AfterSales Oct 6, 2021 Page 1 of 6 4 Technical Information Installation Position: Installation position of brake booster 1 – Brake booster (reworking) Required tools Tools: • Marker pen • Open-ended wrench a/f7 • Open-ended wrench a/f 16 • Torque wrench, 6-50 Nm (4.5-37 ftlb.), e.g. VAG 1331A Torque wrench, 6-50 Nm (4.5-37 ftlb.) • Open-ended wrench attachment, for torque wrench a/f 16 (This tool will only be auto-shipped to affected dealers by this campaign) Preparatory work Work Procedure: 1 Set driver seat to rearmost position. 2 Place steering wheel in upper position. Reworking brake booster Work Procedure: Information Do not pull on or put pressure on the brake pedal while working on the brake booster pressure input rod. Oct 6, 2021 Page 2 of 6 AfterSales AMB9 ENU Seervic 141/21 Technical Information Service 141/21ENU AMB9 4 Installation location of dust glove on pressure input rod 1 Carefully press the dust glove on the pressure input rod Installation location of dust glove on pressure input rod -1- back by approx. 1 cm/ 0.39 in with your hand Pressure input rod dust glove -Arrow-. Pressure input rod dust glove AfterSales Oct 6, 2021 Page 3 of 6 4 Technical Information Screw connection for pressure input rod 2 Carefully pull on screw connection for the pressure input rod using open-ended wrench a/f 7 Screw connection for pressure input rod -1- and torque wrench using open-ended wrench attachment a/f 16 Screw connection for pressure input rod -2-. torque 10 Nm (7.5 ftlb.) Marking on screw connection 3 Mark both sides of the screw connection with a continuous line Marking on screw connection -1-. Oct 6, 2021 Page 4 of 6 AfterSales AMB9 ENU Seervic 141/21 Technical Information Service 141/21ENU AMB9 4 Pressure input rod 4 Turn the pressure input rod using an open-ended wrench (a/f 16) Pressure input rod -1- 45 degrees (counterclockwise) Pressure input rod -in direction of arrow-. Position of marking 5 Check that the marking is then still at the same position. 5.1 If the marking is still at the same position Position of marking -1-, continue with Step 6. 5.2 If the marking is at a different position Position of marking -2-, repeat the procedure once, starting from Step 2. Information If the screw connection of the pressure input rod can still be turned, replace the brake booster in consultation with Technical Support. Workshop Manual ‘477019 Removing and installing brake booster’ AfterSales Oct 6, 2021 Page 5 of 6 4 Technical Information Pressure input rod dust glove 6 Carefully pull the dust glove on the pressure input rod back to Pressure input rod dust glove -1- its original position with your hand Pressure input rod dust glove -2-. Concluding work Work Procedure: 1 Return steering wheel to its original position. 2 Return driver seat to its original position. 3 Enter the campaign in the Warranty and Maintenance booklet. Warranty processing Scope 1: Not valid for this vehicle type Scope 2: • Valid for 911 (992) Working Time: Reworking brake booster Includes: Labor time: 49 TU Damage Code AMB9 099 000 1 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. © Porsche Cars North America, Inc. Oct 6, 2021 Page 6 of 6 AfterSales AMB9 ENU Seervic 141/21
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This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Porsche has determined that certain 2020 to 2021 Model Year Porsche 911 and Taycan Vehicles have a potential issue with the brake booster on the vehicle. What is the issue? There is a possibility that a screw on the pressure input rod of the brake booster was not installed according to specifications. The pressure input rod may become detached from the brake booster. If the pressure input rod is detached, it is not possible to brake the vehicle using the brake pedal, increasing the risk of a crash. The emergency braking function via the electric parking brake is still available without restriction. What will Porsche do? Porsche is conducting a safety recall to check the affected joint connection and repair it if necessary, free of charge. What should you do? The remedy needed to complete this recall is now available. Please contact any authorized Porsche dealer to schedule an appointment to have this recall performed as soon as possible and to arrange for Porsche-provided alternate transportation, if necessary. To find your nearest authorized Porsche dealer, visit: www.porsche.com/usa October 27, 2021 This notice applies to your vehicle: WP0 Dear Mr. , Certain 2020 through 2021 Model Year Porsche 911 and Taycan Vehicles NHTSA ID 21V-697 IMPORTANT SAFETY RECALL (Remedy Notice) URGENT SAFETY RECALL This is an important Safety Recall. The remedy will be performed FREE OF CHARGE to you. Mr. 1111 – This is an important Safety Recall. The remedy will take up to 1 business day 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. This recall will be carried out at no expense to the customer. If you have previously paid to have this repair performed, you may be eligible for reimbursement. For more information, please contact customer commitment as instructed below. 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 you may 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.
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1 AMB9 Recall Campaign – Reworking brake booster AMB9 Recall Campaign – Reworking brake booster Overview On the affected vehicles, there is a possibility that the screw connection of the pressure input rod of the brake booster was not carried out according to specifications. As a result, the pressure input rod may become detached from the brake booster over the running time of the vehicle. If the pressure input rod is detached, it is not possible to brake the vehicle using the brake pedal. The emergency braking function via the electric parking brake is still available without restriction. To avoid possible detachment of the pressure input rod, the affected bolted joint connection will be checked and, if necessary, the brake booster will be replaced/repaired. Model type 911 (992) AMB9 Recall Campaign – Reworking brake booster 2 Taycan (Y1A/ Y1B) Model year 2020 to 2021 Number of affected vehicles 11 Porsche Mobility Immediate towing of the customer’s vehicle to the dealer and a service loaner should be offered to all affected customers until such time as the repair is complete. Warranty processing Please enter the campaign that was carried out in the Warranty and Maintenance booklet for the vehicle. Scope 1: Taycan (Y1A / Y1B) Damage Code AMB9 99 000 Repair Code 1 Working time 44 TU The scopes will be completed as soon as the remedial measure for 911 (992) is available.
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