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Service bulletins for the 2020 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.

1382 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
A4322652067531_12022-08-03. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION. This bulletin provides steps to address DTCs B200FF0, B200FF1, B200FF3, B200FF4, and B200FF5.
A4022452047920_62022-08-03. Service bulletin. SUSPENSION. The bulletin contains diagnosis information for noises on the front end of the vehicle.
A4322622059363_32022-07-01. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. This bulletin contains repair instructions for DTC C1260F0 and U112100 with an air suspension malfunction warning.
A4222482038689_62022-04-05. Service bulletin. SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps.
A4022342018194102022-04-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
A4222472065993_12022-03-04. Service bulletin. SUSPENSION. This bulletin describes a noise that may occuf when the suspension compresses and the associated repair procedure.
A4022322059474_32022-02-04. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
A4421862056386_72022-01-05. Service bulletin. STEERING; SUSPENSION. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A4121002065161_12021-12-07. Service bulletin. SUSPENSION. This bulletin contains instructions regarding part number 4K0 941 285 B.
A4221462038689_52021-09-02. Service bulletin. SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps.
A4321452062932_12021-05-06. 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.
A3921402059057_32021-03-04. Service bulletin. WHEELS; SUSPENSION. This bulletin contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing when fully turning the wheel.
A4321442061907_12021-02-04. Service bulletin. SUSPENSION; EQUIPMENT. This informational bulletin provides information regarding the permissible tolerance.
A4020222058421_32021-01-08. Service bulletin. STEERING; SUSPENSION. This bulletin contains repair instructions for when there is squeaking and creaking when steering or during suspension movement.
A4020132059474_22020-08-06. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER; EQUIPMENT. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
A4220442038689_42020-06-04. Service bulletin. EQUIPMENT; SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps.
A4020062059474_12020-06-04. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
A4020042047920_32020-06-04. Service bulletin. SUSPENSION. The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
A441969 20225632019-04-01. Service bulletin. SUSPENSION. This bulletin provides information regarding vibrations or movement that are felt in the wheel.

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