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Service bulletins for the 2013 Audi S4

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.

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

By type

By component

By trouble code

By topic

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_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).
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.
46134020284202024-03-04. Service bulletin. SERVICE BRAKES. brake noise - Repair Authorization
461336202842022024-03-04. Service bulletin. SERVICE BRAKES. brake noise - Repair Authorization
451307203341222024-03-04. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ABS warning light on with additional warning lights on (EPB/TPMS/EPC/MIL) - Wire harness damage
461468203418162024-03-04. Service bulletin. SERVICE BRAKES. Brake noise analysis and handling
461476203418172024-03-04. Service bulletin. SERVICE BRAKES. Brake noise analysis and handling
461491203418182024-03-04. Service bulletin. SERVICE BRAKES. Brake noise analysis and handling
461486202258452024-03-04. Service bulletin. SERVICE BRAKES. Brake pulsation diagnostic guidelines
46122620311352024-02-20. Service bulletin. AIR BAGS; PARKING BRAKE; LANE DEPARTURE. Yellow warning light for electric parking brake on, ACC inoperative once
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.
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.
A4623432069904_12023-05-05. Service bulletin. SERVICE BRAKES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; UNKNOWN OR OTHER. This bulletin provides information for when there are noises when braking, and the brake pad thickness is OK.
A4623412034181232023-03-06. Service bulletin. SERVICE BRAKES. This bulletin provides instructions for brake noise analysis and handling.
A4622342034181222022-09-01. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
1485203676122022-08-01. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. The oil pressure switch is defective.
1479203337932022-08-01. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. An oil filter that is too short is installed. The oil filter must be 155 (+/-1) mm long. If the oil filter is too short, the drain flap in the oil filter housing will not be completely closed and oil pressure will be reduced.

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