Service bulletins for the 2018 Audi A4
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.
772 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| SM 15-2025 | 2025-04-04. Other. LANE DEPARTURE: WARNING. This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
|---|---|
| TSB-2076945_1 | 2025-03-19. Service bulletin. STRUCTURE:BODY. This bulletin provides information about leather care and seat repair. |
| TSB-2061904_6 | 2025-03-19. Service bulletin. STEERING. This TSB provides information when the warning message "Steering lock for active steering failed. |
| A5325102043016_4 | 2025-02-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when there are visible wires in the interior. |
| A8725982064077_6 | 2025-02-05. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the air conditioning cooling output is insufficient; leak on air conditioning system evaporator. |
| A7225632064695_5 | 2025-02-05. Service bulletin. STRUCTURE:BODY. This bulletin contains service information about a comfort complaint pertaining to the easy-entry function. |
| A6625162049680_3 | 2025-02-05. Service bulletin. STRUCTURE:BODY. This TSB provides information when the exterior rubber trim is spotted. |
| A4025932076605_1 | 2025-02-05. Service bulletin. SUSPENSION. This TSB provides informaiton pertaining to noises from the guide link bush. |
| A4025922076604_1 | 2025-02-05. Service bulletin. SUSPENSION. This TSB provides informaiton about locating noises coming from suspension. |
| A4025902018194_11 | 2025-02-05. Service bulletin. SUSPENSION. This bulletin is an assessment aid for shock absorber leaks. |
| A3725312074822_2 | 2025-02-05. Service bulletin. SUSPENSION. This bulletin provides information when noises from wheel input shaft/drive shaft are reported. |
| A8724952041717_12 | 2025-01-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when a GFF test plan required for A/C compressor replacements regardless of concern. |
| A8724932076287_1 | 2025-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the control functions in the vehicle are restricted. |
| A6624152046229_5 | 2025-01-07. Service bulletin. STRUCTURE:BODY. This bulletin provides informationw hen there are optical defects, scratches, and/or chrome peeling. |
| A5124322068999_3 | 2025-01-07. Service bulletin. STRUCTURE:BODY. This TSB provides information when there is cracked paintwork with corrosion at joint between roof and roof side member. |
| A4424092056386_10 | 2025-01-07. Service bulletin. WHEELS. This bulletin provides information regarding wheel alignment. |
| A4324012067531_6 | 2025-01-07. Service bulletin. SUSPENSION. This bulletin provides information when DTCs B200FF0 to B200FF5 stored in the J775 suspension control unit. |
| A3924762075681_2 | 2025-01-07. Service bulletin. POWER TRAIN. This bulettin provides information when droning noises/vibrations in tight corners is reported. |
| A3724292076084_1 | 2025-01-07. Service bulletin. POWER TRAIN. This TSB provides information when event memory entries cannot be deleted (Mode$0A error) on gearboxes: DL501, DL382/DL382E and DQ500. |
| A2724842074729_2 | 2025-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information in circumstances where there are noises/vibration from front of vehicle in dynamic mode. |
| A0124482014753_13 | 2025-01-07. Service bulletin. ENGINE. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000. |
| A9624092076008_1 | 2024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the camera for the Driver Assist Systems is coded incorrectly. |
| A9624072056019_3 | 2024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate. |
| A9324342074808_2 | 2024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content. |
| A9124872024323_11 | 2024-12-04. Service bulletin. ELECTRICAL SYSTEM. This TSB Provides information when parking assistance provides false warnings. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.