Service bulletins for the 2021 Audi A6
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.
1342 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| A4821982063042_1 | 2021-05-06. Service bulletin. STEERING. This bulletin states to follow the instructions depending a passive or active entry for DTC B200FF0 with the steering warning lamp on. |
|---|---|
| A6921642062974_1 | 2021-05-06. Service bulletin. AIR BAGS; AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE. This informational bulletin states to delete the DTCs and not replace parts for when there is a malfunction message and DTC B130474 and B130574 are sporadically stored. |
| A6821332056298_4 | 2021-05-06. Service bulletin. EQUIPMENT. This bulletin contains instructions for dealing with a noise in the dash panel around the MMI display. |
| A6421792047061_3 | 2021-05-06. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin contains a cleaning procedure from leftover residue from suction cups or labels. |
| A9121892062942_1 | 2021-05-06. Service bulletin. EQUIPMENT. This bulletin states to create a PSS record when the detailed interaction map flickers. |
| A9121882062115_4 | 2021-05-06. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin contains instructions for when the nav files are corrupted during an update. |
| A5721752022032_9 | 2021-05-06. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This technical service bulletin provides troubleshooting information for the vehicle locking system. |
| A5521542062730_1 | 2021-05-06. Service bulletin. EQUIPMENT. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes. |
| A4321452062932_1 | 2021-05-06. Service bulletin. SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. This informational bulletin states to use a special tool if the ODIS tester computes the compressor output as over 25 bar and it is not at 25 bar. |
| A2721372058831_2 | 2021-05-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for DTC P0CA700 or U046900. |
| A1521382053278_7 | 2021-05-06. Service bulletin. ENGINE. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody. |
| A0121022058038_3 | 2021-05-06. Service bulletin. ENGINE. This informational bulletin contains instructions for creating a PSS record. |
| A9121862062713_1 | 2021-04-06. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for when there is radio static when the rear heater is active. |
| A9021962062265_2 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update that addresses when the lane departure warning system is sporadically not available with DTC C12D7F0. |
| A5521532062669_1 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin states that this is a normal condition and to not perform any repairs. |
| A0121012054893_5 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for documenting the "Please reduce Oil Level" message in the instrument cluster potentially with an Engine Warmup request. |
| SSP_970893 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. eSelf-Study Program 970893 - Third-generation modular infotainment matrix. |
| A9421362023322_3 | 2021-04-06. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains information on the different shading of LED headlights. |
| A8021112062583_1 | 2021-04-06. Service bulletin. EQUIPMENT. This bulletin contains instructions for addressing an insufficient or uneven heating performance from the HVAC system. |
| A9621632059201_4 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information for when the messages appear in the instrument cluster about the high beam assist and/or traffic sign detection with DTC C12B3FD. |
| A9121822062115_3 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for when the nav files are corrupted during an update. |
| A9121802062466_1 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains instructions about Apple Carplay cannot be started with Wi-Fi. |
| A1321132062387_1 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for determining if a repair is needed when coolant touches a poly V-belt and/or a toothed belt. |
| Dealer 19P9 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Due to a production irregularity, the cooling system in affected vehicles may have been filled with an antifreeze concentration for min. -25 degrees Celsius instead of the required concentration for min. -40 degrees Celsius. |
| Circular 19P9 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Due to a production irregularity, the cooling system in affected vehicles may have been filled with an antifreeze concentration for min. -25 degrees Celsius instead of the required concentration for min. -40 degrees Celsius. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.