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Service bulletins for the 2019 Audi A8

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.

1326 on file from NHTSA, as of 2026-10-19.

About P2181 on the 2019 Audi A8: 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: P2181 are shown. Show all

Bulletins, newest first
A1924732062951_42025-01-07. Service bulletin. ENGINE. This bulletin provides information when the red coolant warning lamp is on, DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM.
A1924712075878_12024-12-04. Service bulletin. ENGINE. This bulletin provides information when the MIL is on, or the red coolant lamp lights up; DTC P218100 and/or P1BB400.
A1924692069248_82024-11-06. Service bulletin. ENGINE. This bulletin provides information when the red coolant warning lamp comes on OR MIL on, DTC P218100 and/or P1BB400.
A1924662069248_72024-10-28. Service bulletin. POWER TRAIN. This bulletin provides information when the red coolant warning lamp comes on or MIL on, and DTC P218100 and/or P1BB400.
A1924642069248_62024-09-06. Service bulletin. POWER TRAIN. This bulletin provides information when the red coolant warning lamp comes on or MIL on, and DTC P218100 and/or P1BB400.
A1924642069248_62024-09-06. Service bulletin. POWER TRAIN. This bulletin provides information when the red coolant warning lamp comes on or MIL on, and DTC P218100 and/or P1BB400.
A1923432069248_52023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
A1923422069248_42023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
A1923412062951_32023-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin provides information for when the red coolant warning lamp is on and the DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM.
A1923402069248_32023-09-01. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the red coolant warning lamp or MIL illuminate with DTC P218100 and/or P1BB400.
A1923382069248_22023-06-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides instructions for when the red coolant temperature is displayed in the instrument cluster and the engine fans are running bu the coolant temperature gauge does not display an excessively high temperature, or the MIL may be illuminated with DTCS P218100, P1BB400.
A1923342069248_12023-02-07. Service bulletin. BACK OVER PREVENTION; EQUIPMENT:ELECTRICAL. This bulletin provides instructions for when the red coolant temperature is displayed in the instrument cluster and the engine fans are running bu the coolant temperature gauge does not display an excessively high temperature, or the MIL may be illuminated with DTCS P218100, P1BB400.
A1922322062951_22022-11-04. Service bulletin. BACK OVER PREVENTION: WARNINGS. This bulletin contains repair instructions for DTCs P218100, P017B00, P017C00, and/or P017E00 when the red coolant warning lamp is on.
A1922292058767_82022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
A1921162062951_12021-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for DTCs P218100, P017B00, P017C00, and/or P017E00 when the red coolant warning lamp is on.
A1921132058767_72021-04-06. Service bulletin. EQUIPMENT. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
A0120822058767_62020-09-03. Service bulletin. ENGINE; EQUIPMENT. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
A0120632058767_42020-06-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
A0120522058767_22020-04-02. Service bulletin. UNKNOWN OR OTHER. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.

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