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Service bulletins for the 2019 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.

1481 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A1921192061918_32021-07-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A1521392053278_82021-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. 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.
A9021062061489_32021-07-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin states to create a PSS record if the driver assistance systems are sporadically not working.
A1021222018288_92021-06-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This technical service bulletin reminds the reader to check for metal debris when replacing an engine.
A1521382053278_72021-05-06. 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_32021-05-06. Service bulletin. ENGINE. This informational bulletin contains instructions for creating a PSS record.
A5521532062669_12021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin states that this is a normal condition and to not perform any repairs.
A0121012054893_52021-04-06. 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.
A1321132062387_12021-04-06. 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 19P92021-04-06. 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 19P92021-04-06. 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.
A1921122061918_22021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A1021212059446_42021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when oil is lost in the engine compartment.
A0121002058309_52021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains a software update for when DTC P001100 and/or P030100, P030200, P030300, P030400 are stored in the ECM with potential misfiring.
A1521372053278_62021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. 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.
A5721722055932_62021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A1721122060750_22021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks.
A1921112061918_12021-02-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A1521362053278_52021-02-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. 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.
A0121962060429_22021-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for when there may be a noise from the exhaust flap or there are DTCs sporadically stored in the ECM.
Bulletin 13H32021-01-08. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. The engine may not run smoothly due to a non-optimal control of the camshaft adjuster during specific operating conditions. In rare cases, the engine may even stop running under these conditions. However, it is possible to restart the engine at any time afterwards. Internal research has shown that the issue can only occur when the engine is idling (i.e. when the vehicle is stationary or just before the vehicle comes to a stop).
A5520512014055_82021-01-08. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for addressing discoloration due to moisture on a new vehicle.
Dealer 13H32020-12-05. Service bulletin. ENGINE; EQUIPMENT. The engine may not run smoothly due to a non-optimal control of the camshaft adjuster during specific operating conditions. In rare cases, the engine may even stop running under these conditions. However, it is possible to restart the engine at any time afterwards. Internal research has shown that the issue can only occur when the engine is idling (i.e. when the vehicle is stationary or just before the vehicle comes to a stop).
A9120392061490_12020-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. This bulletin covers Audi connect: oil level in the myAudi app is implausible
A1020202059446_32020-11-05. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for oil loss found in the engine compartment.

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