Service bulletins for the 2018 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.
796 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| A5724432027368_5 | 2024-06-25. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the door handle touch sensors for Audi advanced key are inoperative. |
|---|---|
| A1124002073917_1 | 2024-06-25. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when there is a fluid sample request from Product Support. |
| A0124232073867_1 | 2024-06-25. Service bulletin. ENGINE. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM. |
| A0024852021205_8 | 2024-06-25. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on the ordering procedures for VIN Plates, and Safety Certification labels. |
| A9424812073332_3 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is noise while steering. |
| A9024962071281_2 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is an instrument cluster warning "Fault: Limited warning messges", DTC B174404. |
| A9024952059891_6 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This byulletin provides information when the Audi pre sense icon for restricted function is displayed after the engine starts. |
| A9024872073747_2 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are scratches or a coating on the cover of the instrument cluster, or if there are particles inside the housing. |
| A5724432027368_5 | 2024-06-25. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the door handle touch sensors for Audi advanced key are inoperative. |
| A1124002073917_1 | 2024-06-25. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when there is a fluid sample request from Product Support. |
| A0124232073867_1 | 2024-06-25. Service bulletin. ENGINE. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM. |
| A0024852021205_8 | 2024-06-25. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on the ordering procedures for VIN Plates, and Safety Certification labels. |
| A9424792063739_2 | 2024-05-07. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information when the headlights do not turn off during daylight hours. |
| A9424762073332_2 | 2024-05-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when there is noise when steering. |
| A9024852073747_1 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there are scratches, or a coating on the cover of the instrument cluster, or particles in the housing. |
| A9024842032113_9 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides general information regarding outside air temperature readings. |
| A9024832059335_5 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there is noise from around the instrument cluster. |
| A9124942073582_1 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides general troubleshooting for connection complaints related to Apple CarPlay. |
| A5724342017082_1 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the remote control key is inoperative. |
| A3924602059057_8 | 2024-05-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is binding or vibrations in tight turns in vehicles equipped with quattro Ultra. |
| A2724712067906_5 | 2024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when DTC P0A7D00 is stored. |
| SM 19-2024 | 2024-04-05. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| A942473201274917 | 2024-04-05. Service bulletin. EXTERIOR LIGHTING; UNKNOWN OR OTHER. This bulletin provides information when the exterior lights have moisture accumulation. |
| A8724702064077_4 | 2024-04-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only. |
| A7024892044417_1 | 2024-04-04. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This bulletin provides information when there are noises from the headliner/sunroof area. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.