Service bulletins for the 2018 Audi TT
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.
532 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| A102326201828810 | 2023-07-10. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on checking for debris when replacing an engine. |
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| A4623452070679_1 | 2023-07-10. 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. |
| A4823412028220_1 | 2023-07-10. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. This bulletin provides information for instances where the steering wheel leather is damaged. |
| A9423652061922_3 | 2023-07-10. Service bulletin. EXTERIOR LIGHTING. This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights. |
| A5723082027406_5 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This bulletin provides information regarding the Audi advanced key. |
| A4023592047758_1 | 2023-07-10. Service bulletin. SUSPENSION; STEERING. This bulletin provides information for when cracking noises/spring jumps occur when steering or when maneuvering. |
| A4023572047758_9 | 2023-06-06. Service bulletin. SUSPENSION. This bulletin states to lightly lubricate the contact surface between the buffer stop and shock absorber cap when cracking noises/spring jumps are detected when steering or maneuvering. |
| A922335203815114 | 2023-06-06. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER. This bulletin provides instructions for when the washer level warning is on but the reservoir is full. |
| A7223462069350_1 | 2023-06-06. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin provides information for when the starter battery is discharged, and the vehicle cannot be started due to the front adjustment seat switch becoming jammed. |
| A0023702021205_7 | 2023-06-06. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin provides instructions for ordering replacement Safety Certification labels or VIN plates. |
| A0023692031473_4 | 2023-06-06. Service bulletin. STRUCTURE; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender. |
| A0023682066297_2 | 2023-06-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information to Audi technicians regarding the VIN-4-PIN bonus program. |
| A9423632061922_2 | 2023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides details on how to properly document optical concerns in headlights and taillights for warranty submissions. |
| A912394201818713 | 2023-06-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference. |
| A942364201274916 | 2023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information for when there is moisture accumulation in the exterior lights. |
| A4623432069904_1 | 2023-05-05. 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. |
| A4423992056386_9 | 2023-05-05. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. |
| A4423982056386_8 | 2023-05-05. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. |
| A6623982046229_4 | 2023-05-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on how to document optical defects in order to submit to Warranty. |
| A3923532043144_9 | 2023-05-05. Service bulletin. POWER TRAIN. This technical service bulletin provides repair instructions for the all-wheel drive coupling. |
| A9023222032113_7 | 2023-05-05. Service bulletin. EQUIPMENT. This information bulletin contains a background on the outside air temperature reading. |
| A192336202530314 | 2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants. |
| A9123832037809_1 | 2023-04-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin provides information on how to update the navigation map. |
| A6423882047061_5 | 2023-04-06. Service bulletin. VISIBILITY:WINDSHIELD; STRUCTURE. This bulletin describes the process to clean sticker residue from the windshield. |
| A4023512023187_7 | 2023-04-06. Service bulletin. STEERING. This bulletin states that squeaking noises which may be more prevalent in wet weather during steering is normal and repair is not needed. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.