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Service bulletins for the 2011 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.

423 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
No. 08-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for new and classic Porsche vehicles MY 1984 and newer.
No. 07-21-12021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all new and Classic Porsche vehicles MY1984 and newer.
No. 03-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new and classic Porsche models 1984 and newer.
No. 54-202021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved A40 style engine oils for new and classic Porsche models.
No. 53-202021-01-05. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 style engine oils for new and classic Porsche vehicles.
No. 20002020-11-06. Service bulletin. ENGINE AND ENGINE COOLING. Advanced Technical information on a NVH Lubrication kit.
No. 11-152020-10-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Information on replacing the control unit for the auxiliary alarm system in the event of fault codes.
No. 31-202020-10-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. List of approved engine oils for all Porsche models since 2003.
No. 33-202020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Overview of Approved Porsche C20 Engine Oils
No. 16-202020-06-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. List of approved A40 engine oils for all applicable vehicles as of 1984.
122-M8J3B-052020-05-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for all Porsche models since 1984.
122-F4J4K-042020-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved engine oils for all Porsche models.
122-T9S3B-022020-02-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all Porsche vehicles since 1984.
122-Z2X7A-022020-02-04. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all Porsche vehicles since 1984.
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-G2B4B-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 engine oils for Porsche vehicles.
122-X4X7D-092018-11-19. Service bulletin. ENGINE AND ENGINE COOLING. Cause The noises can occur if there is excessive spring force tolerance in the oil separator Date of introduction The optimized oil separators are used in production from November 25, 2015. Remedial action In the event of a customer complaint, check the part number of the installed oil separator and replace the oil separator if necessary.
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-V3U7E-062017-08-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING. Concerns: Plug on crankcase for cylinders 1-3. Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. There is the possibility that a plug that was pressed into and sealed to the crankcase is not seated securely enough in the opening on the affected vehicles. As a result, this can cause the plug to become loose and as a result, oil can suddenly leak out of the crankcase, resulting in immediate engine damage.
122-V9B2C-062017-08-01. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Concerns: DME control unit Information: This is to inform you of a voluntary Workshop Campaign on certain 2010 to 2012 model year 911 GT3 (997)/911 GT3 RS (997)/911 GT3 RS 4.0 (997) vehicles. There is the possibility that an implausible oil pressure will be measured and stored in the DME control unit after switching off the engine on the affected vehicles. As a result, this can cause the oil pressure warning light to be activated unnecessarily in the instrument cluster the next time the engine is started. To remedy the situation, re-program the DME control unit using a modified data record.
122-D5B3L-062017-07-28. Service bulletin. ENGINE. Center intake-air distributor Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. An intake-air distributor, on which the shaft for guiding the resonance flap does notmeet the required specifications, may have been installed on the affected vehicles. As a result, the shaftmay break and broken pieces may get into the intake duct and end up in the combustion chambers. This can cause loud noises. It can also result in mechanical damage if the engine is not stopped in time.
TI-79-122013-08-20. Service bulletin. ENGINE. PORSCHE: THE CENTER INTAKE-AIR DISTRIBUTOR MAY NEED TO BE REPLACED. BROKEN PIECES OF THE SHAFT MAY ENTER THE ITACT DUCT AND COMBUSTION CHAMBERS. MODELS INCLUDE 911 GT3 RS(997)/ 911 GT3 RS 4.0 (997) MODEL YEARS: 2010-2012. *JS
TI-107-12013-03-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. PORSCHE: INFORMATION PERTAINING TO ASSEMBLY AND REPAIR WORK FOR TURBOCHARGING SYSTEM. MODELS 2011 911 TURBO, 911 TURBO S, CAYENNE TURBO, CAYENNE TURBO S, CAYENNE S DIESEL, PANAMERA TURBO, PANAMERA TURBO S, PANAMERA S HYBRID. *PE
TI-27-12 REV 12013-02-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). PORSCHE: A PLUG, PRESSED AND SEALED INTO CRANKCASE, WAS NOT SECURELY SEALED ENOUGH AND THIS RESULTED IN PLUG BECOMING LOOSE AND OIL SUDDENLY LEAKED OUT OF CRANKCASE, CAUSING DAMAGE TO ENGINE, IMMEDIATELY. MODELS 2011-2012 911 GT3 RS.4. *PE

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