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Service bulletins for the 2021 Audi SQ8

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.

1186 on file from NHTSA, as of 2026-10-19.

About P310B on the 2021 Audi SQ8: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P310B are shown. Show all

Bulletins, newest first
TSB_2070281_72026-10-05. Service bulletin. ENGINE. This bulletin provides information when the MIL is on; P310B00 - low fuel pressure regulation, fuel pressure outside of tolerance - symptom 2638.
TSB_2070281_62026-09-04. Service bulletin. ENGINE. This bulletin provides information when the MIL is on, DTC P310B00 is stored; low fuel pressure regulation, fuel pressure outside of tolerance, symptom 2638.
TSB_2070281_52026-09-04. Service bulletin. ENGINE. This bulletin provides information when the MIL is on, DTC P310B00 is stored; low fuel pressure regulation, fuel pressure outside of tolerance, symptom 2638.
TSB_2070281_42025-12-05. Service bulletin. ENGINE. This bulletin provides information when the MIL is on, DTC P310B00 is stored; low fuel pressure regulation, fuel pressure outside of tolerance, symptom 2638.
A2024682070281_32024-04-04. Service bulletin. FUEL SYSTEM, GASOLINE. This bulletin provides information when DTC P310B00 - low fuel pressure regulation, fuel pressure outside of tolerance is present.
A2023632070281_22023-12-06. Service bulletin. FUEL SYSTEM, GASOLINE. This bulletin provides information when the MIL is on with DTC P310B00; Low fuel pressure regulation.
A2023612070281_12023-06-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instructions for when the MIL light is illuminated; DTC P310B00 may be stored.

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