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Service bulletins for the 2021 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.

750 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
No. 33-252025-09-08. Service bulletin. ENGINE. Manufacturers certificate for an overview of approved Porsche C20 engine oils. Starting at model year 2021 vehicles.
No. 32-252025-09-08. Service bulletin. ENGINE. Manufacturers certificate for overview of approved Porsche A40 engine oils. The vehicles affected are cars that use A40 engine oils. MY1997-2020
No. 29-252025-09-08. Service bulletin. ENGINE. Manufacturers certificate for overview of approved Porsche C20 engine oils. The vehicles affected are cars that use C20 engine oils. MY17-20
No. D7302025-09-05. Service bulletin. ENGINE. Parts information for Parts Withdrawal -Coolant pipe (PAB12113103). Vehicles not listed, but the affected cars are ones that use part number PAB12113103
No. D7272025-08-06. Service bulletin. ENGINE. Parts information for parts withdrawal involving the part numbers below. The vehicles affected are cars that use the part numbers listed. 971260601SX, 971260601SU, 971260601RU, 971260601QX, 971260601QU, 971260601Q
No. 32-252025-08-05. Service bulletin. ENGINE. Technical information for the warranty information: engine mount warranty extension on the 911 2020-2025
No. D7252025-08-05. Service bulletin. ENGINE. Parts information for parts withdrawal involving the high pressure injector (0PB128615C)
No. 19-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C30 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 17-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C40 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 16-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C30 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 15-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C20 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 91-242025-05-05. Service bulletin. ENGINE. Technical information for Oil Leakage in the Area of the Upper Part of the Oil Pan and Crankcase: Checking Return Seal on Upper Part of Oil Pan and Replacing if necessary
D7142025-04-07. Service bulletin. ENGINE. Parts Information - Parts Withdrawal - Replacement Engine (9A2100975JX)
No. 03-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C40 Engine Oils (03/25)
No. 02-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C30 Engine Oils (02/25)
No. 01-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C20 Engine Oils (01/25)
No 223-242025-03-05. Service bulletin. ENGINE. Symptom-based workshop manual - Assessment of Oxidized Cylinder Liners (SY 223/24)
No. D7032024-12-06. Service bulletin. ENGINE. Parts information for parts withdrawal involving the oil separator. The affected vehicles are cars that use part number 0PC115099A
No. 699.12024-11-06. Service bulletin. ENGINE. Parts information for parts withdrawal involving the hydro-mount on the 911
No. D6992024-11-05. Service bulletin. ENGINE. Parts information for parts withdrawal involving the hydro-mounting on the 911.
No. 31-242024-10-07. Service bulletin. ENGINE. Manufacturers certificate with an overview on approved Porsche C30 engine oils. See attached for list of affected vehicles.
No. 30-242024-10-07. Service bulletin. ENGINE. Manufacturers certificate with an overview on approved Porsche C20 engine oils. See attached for list of affected vehicles.
No. 21-192024-10-04. Service bulletin. ENGINE. Installation and conversion instructions for the sports exhaust system on the 911.
No. D6942024-10-04. Service bulletin. ENGINE. Parts information for parts withdrawal involving the engine oil (00004321093)
No. 116-242024-09-05. Service bulletin. ENGINE. Technical information for warranty information - oil pan warranty extension in conjunction with technical information

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