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
| No. 08-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for new and classic Porsche vehicles MY 1984 and newer. |
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| No. 07-21-1 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for all new and Classic Porsche vehicles MY1984 and newer. |
| No. 06-21-1 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C40 engine oils for all MY2021 Porsche vehicles. |
| No. 05-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 engine oils for MY 2021 Porsche vehicles. |
| No. 04-21-4 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new MY 2021 Porsche vehicles. |
| No. 03-21 | 2021-04-02. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C20 engine oils for all new and classic Porsche models 1984 and newer. |
| No. 210-20 | 2021-02-01. 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. 57-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C40 style engine oils for MY21 and newer Porsche models. |
| No. 56-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C30 style engine oils for MY21 and newer Porsche models. |
| No. 55-20 | 2021-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 style engine oils for new Porsche models as of 2021. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.