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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
122-S7K8Z-022020-02-04. Service bulletin. WHEELS; ENGINE AND ENGINE COOLING. List of approved A40 engine oils for all Porsche vehicles since 1984.
122-T6A9F-022020-02-04. Service bulletin. SEATS; WHEELS; ENGINE. Parts withdrawal for various parts that were used in Recall and workshop campaigns.
122-W2X4X-012020-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. Bulletin outlining how to check the throttle housing cover in the event that the customer complains about sluggish performance above 7000 RPM.
122-N4W7J-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Parts withdrawal bulletin for the coolant pump on 991 and 992 911 models.
122-P8G9U-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. Information for Workshop campaign WKA5, which seeks to check the fill level sensor for the water spray system and replace it if necessary.
122-G2B4B-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 engine oils for Porsche vehicles.
122-X2X7N-072019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. Notice to dealers that coolants will be moved out of the special tool cabinet in the dealer service department in order to make room for new special tools. All coolant tools will be moved to the "Coolant Cart" because they need to be housed in the same place.
122-D7K9V-092018-11-19. Service bulletin. ENGINE. Complaint - Incorrect Allocation of Fault Code (P0153/P0133) for Oxygen Sensor (upstream of Catalytic Converter): Replacing both oxygen sensors (upstreamof catalytic converter) (89/18)
122-P5G7U-072018-08-06. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-S5Z2N-072018-08-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. 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-S5Z2N-072018-07-30. 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-H3M7J-052018-05-21. 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-Z6Y2F-032018-03-13. 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:

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.