Service bulletins for the 1981 Porsche 928
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.
57 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Glass, wipers and mirrors are shown. Show all
| 122-N3Z8S-04 | 2020-04-02. Service bulletin. VISIBILITY. Technical information for replacing the air conditioning compressor on the 930 generation 911 Turbo. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.