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Service bulletins for the 2020 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.

832 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. 49-21-22021-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE. Porsche recall campaign information for Recall campaign AMA3 - Reworking Various Threaded Connections on the Chassis.
No. 13-212021-04-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 style engine oils for classic and new Porsche models since 1984.
No. 09-212021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 style engine oils for new and classic Porsche vehicles MY 1984 and newer.
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.
WLF62021-02-02. Service bulletin. ENGINE AND ENGINE COOLING. Porsche Intranet posting with preliminary information for Dealers on Workshop campaign WLF6 -Replacing Turbocharger.
No. 210-202021-02-01. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Instructions on how to replace the intake pipe in the event that there is a leak on the right side of the turbocharger.
No. 97-202021-02-01. Service bulletin. ENGINE AND ENGINE COOLING. Porsche Service campaign Information for Workshop campaign WLF6 - Replacing Turbocharger.
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.
WLH22020-11-06. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Porsche intranet posting with information for dealers regarding Porsche Workshop Campaign WLH2 - Checking threaded joint on engine support and reworking it if necessary.
No. 20002020-11-06. Service bulletin. ENGINE AND ENGINE COOLING. Advanced Technical information on a NVH Lubrication kit.
No. 121-202020-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT. Instructions on how to replace the turbocharger in the 2020 911 in the event that there is power loss in conjunction with turbocharger damage.
No. 150-202020-11-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Instructions on how to rework the catalytic converter in the event that the threaded joint holder is severely corroded.
No. 133-202020-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT. Service campaign information for Porsche Workshop Campaign WLH2 - Checking Threaded Joint on Engine Support and Reworking it if Necessary.
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. 88-202020-10-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS. Procedure instructions on how to address oil leaking from the double clutch transmission on the new 992.
No. 5102020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Information on a parts withdrawal of a coolant pump.
No. 33-202020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Overview of Approved Porsche C20 Engine Oils
No. 20152020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Information on a new pressure loss tester for all new models.
No. 121-302020-09-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. Instructions for replacing the turbocharger and exhaust manifold in the event of power loss in conjunction with turbocharger damage.
WKJ82020-08-05. Service bulletin. ENGINE. Porsche intranet posting for Porsche Workshop Campaign WKJ8 – Replacing engine mounts and retrofitting cover caps.
WLD32020-08-05. Service bulletin. ENGINE. Porsche intranet posting for Porsche Workshop Campaign WLD3 – Replacing engine mounts and retrofitting cover caps.
No. 138-192020-08-05. Service bulletin. ENGINE. Campaign instructions for Porsche Workshop Campaign WKJ8 - Replacing Engine Mounts and Retrofitting Caps.

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