Service bulletins for the 2021 Audi S6
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.
1155 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| A8724892041717_11 | 2024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information pertaining to the GFF test plan required for A/C compressore replacements, regardless of the concern. |
|---|---|
| A6924142062974_4 | 2024-10-28. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is a message relating to DTC B130474, B130574 are stored in the airbag control unit. |
| A6624122060333_5 | 2024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides informaiton when the exterior black optic trim is discolored. |
| A5124312068999_2 | 2024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is visible corrosion at the joint between the roof and roof side member. |
| A5024142061672_5 | 2024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there are creaking noises heard when body twists during braking or steering maneuvers. |
| A4824732075199_1 | 2024-10-28. Service bulletin. STEERING. This bulletin provides information when there is a prompt to take over steering; hands off detection. |
| A4824722028220_12 | 2024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information regarding steering wheel visual damage. |
| A4624592069078_2 | 2024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides informaion regarding zirconium inserts in the bake piston for vehicle equipped with ceramic brakes. |
| A4624572051095_9 | 2024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on frequency analysis. |
| A4524492075120_1 | 2024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides information regarding the general approach to brakes rubbing. |
| A4524462072304_2 | 2024-10-28. Service bulletin. ELECTRICAL SYSTEM. This bulleitn provides information when there is an implausible signal in the ABS/ESC speed sensor. |
| A4424082074846_2 | 2024-10-28. Service bulletin. STEERING. This bulletin provides information when there are vibrations and rotational steering wheel vibrations. |
| A3924722059129_6 | 2024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there are noises and/or vibration in tight turns in vehicles with quattro drive. |
| A2424632074810_2 | 2024-10-28. Service bulletin. ENGINE. This bulletin provides information when ther is an Engine: start/stop system fault shown and start/stop system not is working; mileage below 50 km/32 miles. |
| A0024932002047_13 | 2024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides guidance in order to provid informaiton regarding preparatoin when calling the Audi Technical Assistnce Center (TAC). |
| A0024922031473_5 | 2024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides informationw hen there are car was brush bristles trapped in the seam between the headlight and fender. |
| Dealer 27BQ_REV4 | 2024-09-06. Service campaign. UNKNOWN OR OTHER. Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart & owner notification letters to reflect the addition of 2021 model year. Parts and claiming instructions updated. |
| Circ 27BQ_REV4 | 2024-09-06. Service campaign. UNKNOWN OR OTHER. Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart & owner notification letters to reflect the addition of 2021 model year. Parts and claiming instructions updated. |
| A9424392065982_3 | 2024-09-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the headlight washer jet does not retract. |
| A9324042074808_1 | 2024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content. |
| A9224402065963_3 | 2024-09-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on repairing the corrugated hose for the windshield washer system. |
| A9124462068573_3 | 2024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen the parking aid sensor bracket(s) separates from the rear bumper. |
| A9124452059528_12 | 2024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is an eCall fault / the eCall LED is red with DTC B200000. |
| A9124392074855_1 | 2024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the calendar function is not available in MIB3. |
| A9124372060523_3 | 2024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides software update instructions for MIB3. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.