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Service bulletins for the 2021 Audi S8

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.

1150 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
TSB_2075120_32026-09-04. Service bulletin. SERVICE BRAKES. This bulletin provides information about the general approach for brake vibration concerns.
TSB_2072304_42026-09-04. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
TSB_2069904_32026-09-04. Service bulletin. SERVICE BRAKES. This bulletin provides information for all models regarding brake sounds.
TSB_2069078_42026-09-04. Service bulletin. SERVICE BRAKES. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
TSB_2067132_42026-09-04. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
TSB_2034143_112026-01-07. Service bulletin. SERVICE BRAKES. This Repair Authorization requests that technicians contact the Technical Assistance Center before proceeding with any brake repairs on vehicles with Cceramic brakes.
TSB_2069904_22025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information for all models regarding brake sounds.
TSB_2075120_22025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information regarding the general approach for all Audi vehicles regarding brake vibrations.
TSB_2072304_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
TSB_2069078_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
TSB_2067132_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
TSB_2078475_12025-08-05. Service bulletin. SERVICE BRAKES. This bulletin provides information when ther eis thermal deformation on the vacuum line to the brake servo.
A4624592069078_22024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides informaion regarding zirconium inserts in the bake piston for vehicle equipped with ceramic brakes.
A4524492075120_12024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides information regarding the general approach to brakes rubbing.
A4523362072304_12024-01-04. Service bulletin. UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.
A4623532034143102023-12-07. Service bulletin. SERVICE BRAKES; EQUIPMENT. This is a repair authorization for concerns pertaining to vehicles with ceramic brakes.
A9023532058077_82023-12-06. Service bulletin. SERVICE BRAKES; BACK OVER PREVENTION: WARNINGS. This bulletin provides information for when there is a warning, warning jolt and/or brake engagement with Audi pre sense.
A4623522054385_32023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information for when the brakes creak at an almost standstill.
A4623512051095_82023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake pulsation diagnostic guidelines.
A4623502022584122023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake pulsation diagnostic guidelines.
A4623492067132_22023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on for when there is corrosion on the friction surface of a steel brake disc.
A4623482034181242023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake noise analysis and handling.
A9023312058077_72023-08-04. Service bulletin. SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This bulletin provides information for when an unexpected Audi presense front intervention such as a front end warning, a warning jolt, partial braking, or emergency braking occurs and a warning appears in the instrument cluster and audibly.
A4623452070679_12023-07-10. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29.
A4623462034143_92023-07-10. Service bulletin. SERVICE BRAKES. This bulletin states that a TAC ticket must be opened in instances where ceramic brakes required a repair.

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