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
| TSB_2060560_4 | 2025-08-05. Service bulletin. POWER TRAIN. This bulletin providesi nformation when various DTCs are stored; high maximum temperature recorded for clutch K1. |
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| TSB_2027368_7 | 2025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the Audi advanced key is inoperative; door handle touch sensors. |
| TSB_2010353_6 | 2025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides informatin when the cigarette lighter element does not eject, or the cigarette lighter is inoperable. |
| TSB_2042920_2 | 2025-07-08. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information when there is corrosion on the exhaust tail pipes. |
| TSB_2060855_3 | 2025-07-08. Service bulletin. SUSPENSION. This bulletin provides information when there are rumbling noises from the suspension - upper link rubber mounting. |
| TSB_2075681_3 | 2025-06-03. Service bulletin. POWER TRAIN. This bulletin provides informaoitn when there is droning noises/vibrations in tight corneres, in vehicles that have quattro with ultra technology. |
| TSB_2074806_3 | 2025-06-03. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there are noises after selecting a gear while the vehicle is idling and stationary, or while driving. |
| TSB_2073867_2 | 2025-06-03. Service bulletin. ENGINE. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM. |
| TSB_2061904_7 | 2025-06-03. Service bulletin. STEERING. This TSB provides information when the warning message "Steering lock for active steering failed" appears. |
| TSB_2059891_9 | 2025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the restricted function icon for Audi pre sense is displayed after engine starts. |
| TSB_2056019_4 | 2025-06-03. 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. |
| TSB_2055443_2 | 2025-06-03. Service bulletin. STRUCTURE:BODY. This bulletin provides accounting instructions for noises from the headliner/noises from the panoramic sunroof. |
| TSB_2077631_1 | 2025-05-03. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the message "Engine/power nt start system: fault. Please contact workshop" appears; DTC B143C29. |
| TSB_2077320_2 | 2025-05-03. Service bulletin. UNKNOWN OR OTHER. This TSB is a label placement guide as required by CARB for remanufactured parts. |
| TSB_2031473_6 | 2025-05-03. Service bulletin. STRUCTURE:BODY. This service information TSB describes a cosmetic issue after using a car wash. |
| SM 26-2025 | 2025-05-03. Other. STEERING. This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| TSB_2073582_2 | 2025-05-03. Service bulletin. UNKNOWN OR OTHER. Apple CarPlay: general troubleshooting for connection complaints. |
| TSB_2012749_18 | 2025-05-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the exterior lights have moisture accumulation. |
| TSB_2071893_2 | 2025-05-03. Service bulletin. SEATS. This TSB provides damage assessment guidelines for textile seat covers. |
| TSB_2077320_1 | 2025-04-04. Service bulletin. UNKNOWN OR OTHER. This TSB is a label placement guide as required by CARB for remanufactured parts. |
| TSB_2075530_2 | 2025-04-04. Service bulletin. ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds. |
| TSB_2071185_2 | 2025-04-04. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information regarding various comlaints related to Apple CarPlay with Apple iOS devices. |
| TSB_2044417_13 | 2025-04-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information about repiars for squeaks and rattles in the headliner. |
| TSB_2041717_13 | 2025-04-04. Service bulletin. VISIBILITY/WIPER. This bulletin provides information regarding the GFF test plan required for A/C compressr replaements regardless of the concern. |
| TSB_2018194_12 | 2025-04-04. Service bulletin. SUSPENSION. This bulletin serves as an assessment aid for shock absorber leaks. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.