Service bulletins for the 2018 Porsche 911
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
589 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 122-J7H9T-07 | 2018-07-30. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. Symptom: The plastic rear window can become damaged or part of it can become visibly detached from the body due to different temperatures and tension while driving. This can cause wind noise. Cause: The components of the rear window plastic (polycarbonate), screen print and primer are not chemically compatible. |
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| 122-S5Z2N-07 | 2018-07-30. Service bulletin. ENGINE AND ENGINE COOLING. Information: If the customer complains about an oil leak on the turbocharger, always note the following information before doing any other work. ? The turbocharger does not necessarily have to be replaced. |
| 122-N9H2B-06 | 2018-06-25. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. Subject: Window cleaning fluid Information: The affected vehicles were not filled with window cleaning fluid at the factory because the window cleaning fluid is not currently available. For this reason, the washer fluid reservoir on the affected vehicles was only partly filled with water. Remedial Action: Before vehicle delivery to customers, the washer fluid reservoir must be filled with a window cleaning fluid listed in the EPA Inventory during the sales check. |
| 122-B9V4V-06 | 2018-06-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information: The Approval and Support Management system was created to offer assistance to the dealer organization with new and complex technical issues by utilizing the Support Specialists within Porsche R&D. As a result, this process has reduced vehicle downtime and repeat repairs substantially. |
| 122-X3R3E-06 | 2018-06-25. Service bulletin. SERVICE BRAKES. Information: Due to an allocation error, there is a possibility that the air guides for the brake discs on the front axle were not supplied with the affected vehicles during the production process. As a result, the air guides may not have been fitted during the sales check at the dealership. Remedial Action: Fit air guides for brake discs in the front wheel housing |
| 122-H3M7J-05 | 2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT. Subject: Exhaust system Information: Themonolith in the catalytic converter may be damaged. Remedial Action: To verify catalytic converter damage, both oxygen sensors ? Installation overview of oxygen sensors on engine side, cylinders 1-3 (shown on the 911 Carrera) -1 and 2- can be removed and the catalytic converter examined using a video endoscope prior to any disassembly. |
| 122-S2H7Q-04 | 2018-04-23. Service bulletin. AIR BAGS. Concern: Production change Information: There was a production change to the airbag system in sports cars (991 II/982) starting in CW22/2017. All Coupe versions now have a curtain style head airbag, as opposed to the head airbag previously (still in Cabriolet versions) found in the doors |
| 122-R8A3S-04 | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM. Service Information: The 40 A lightweight lithium-ion starter battery (part number 99161104052) is not approved for the 991-II GT3 from model year 2018 (J) on. Please refer to PET page 902-06. (Figures 1 and 2). |
| 122-X8U7Y-04 | 2018-04-23. Service bulletin. VISIBILITY. Subject: Sun blind Symptom: Sun blind will not open completely and is creased. Cause: A plastic foam strip on the headliner can shrink as a result of ageing and high fluctuations in temperature and can become detached. The plastic foam strip catches in the sun blind and damages it. |
| 122-V7S2D-04 | 2018-04-23. Service bulletin. WHEELS. Concern: Approval status: January 2018 Sizes: Permissible tire and wheel sizes |
| 122-H3J6T-03 | 2018-03-13. Service bulletin. STRUCTURE. Subject: Symptom: Cause: 911 Carrera/S/4/4S/GTS (991) 911/S/4/4S/GTS Cabriolet (991) 911 Targa 4/4S/GTS (991) 911 Turbo/S Coupe/Cabriolet (991) As of 2017 up to 2018 Rear supporting mount Creaking noise from chassis area at the rear of the vehicle. The spring force of the coil spring may be outside of the tolerance range. The increased transverse force as a result of this can overload the insert in the supporting mount. The piston rod may no longer be guided in centrally and touches against the supporting mount housing. ? This produces the metallic noise. |
| 122-Z6Y2F-03 | 2018-03-13. Service bulletin. ENGINE AND ENGINE COOLING. Subject: Coolant pump Information: Due to amanufacturing error, the coolant pump can leak into the vacuum area. The warning "Engine too hot" can also be displayed in the instrument cluster in some cases. In the event of a complaint about coolant loss and if the fault diagnosis indicates a leak in the coolant pump, all vacuum lines for the coolant pumpmust be checked for traces of coolant. If traces of coolant are found in the vacuum lines: |
| 122-N7L9D-02 | 2018-02-12. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. Customer Concern: The driver receives an airbag warning in the instrument cluster. Technical Concern: The workshop confirms the customer?s observation along with one or more of the following fault codes: ? 002502: Key-operated switch circuit 1, short circuit to B+ ? 002602: Key-operated switch circuit 2, short circuit to B+ |
| 122-D2H5N-02 | 2018-02-12. Service bulletin. EQUIPMENT. Concern: The GT3 fin accessory kit (part number 99150445581) should NOT be installed on a 2018 911 GT3 (991) Touring during PDI. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.