Service bulletins for the 2018 Audi A3
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.
640 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| Circ34L4_REV1 | 2023-12-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Transmission Control Module (TCM) Software - Updated repair steps after software update is completed. Added example photos of transmission damage. |
|---|---|
| A9023562032113_8 | 2023-12-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides general information about the outside air temperature reading. |
| A6923012059201_7 | 2023-12-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides information for when high beam assist or traffic sign detection limited, DTC 12B3FD may be stored in the DAS control module. |
| A6623042030471_7 | 2023-12-06. Service bulletin. STRUCTURE. This bulletin provides information for when the license plate mounting bracket threaded inserts are stripped. |
| A0023812070568_2 | 2023-12-06. Service bulletin. EQUIPMENT. This bulletin provides information on the VAS 611 015 PICO-NVH tool for professional noise analysis. |
| A9423672071954_1 | 2023-11-06. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight. |
| A9123332058007_2 | 2023-11-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides information for when Navigation, Bluetooth, smartphone interface, and voice recognition is not available. |
| A8723602064077_3 | 2023-11-06. 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. |
| A7423262071893_1 | 2023-11-06. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin provides damage assessment guidelines for textile seat covers. |
| A6623032060333_4 | 2023-11-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information for when the black optic trim is discolored. |
| A2723612067906_4 | 2023-11-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information for when DTC P0A7D00 is stored. |
| A0123812028842_4 | 2023-11-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instructions regarding unauthorized chip tuning (TD1). |
| A0023782066297_4 | 2023-11-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information related to the VIN-4-PIN Program. |
| A0023762071721_1 | 2023-11-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information for when unauthorized/unjustified DTC memory entries are captured in ODIS test Plans (Ghost faults). |
| A3523462050723_4 | 2023-11-06. Service bulletin. POWER TRAIN. This bulletin provides information for when there is a Gearbox Malfunction warning stored in the TCM; DTCs P176F00, P176E00, P175E00, P175D00, P189900, P060700, P081000. |
| A0023752066297_3 | 2023-11-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides details on the VIN-4-PIN program. |
| A0023742052680_4 | 2023-11-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on the additional reporting requirements for safety related inquiries. |
| A4623522054385_3 | 2023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information for when the brakes creak at an almost standstill. |
| A4623512051095_8 | 2023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake pulsation diagnostic guidelines. |
| A462350202258412 | 2023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake pulsation diagnostic guidelines. |
| A4623492067132_2 | 2023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on for when there is corrosion on the friction surface of a steel brake disc. |
| A462348203418124 | 2023-10-05. Service bulletin. SERVICE BRAKES. This bulletin provides information on brake noise analysis and handling. |
| A442303202256323 | 2023-10-05. Service bulletin. STEERING. This bulletin provides information for when a steering wheel shimmy, vibration, and/or oscillation is reported. |
| A3523442070217_1 | 2023-10-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This bulletin provides information for when the Gearbox warning comes on, and various DTC memory entries are stored in the TCM. |
| A2723602067906_3 | 2023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin provides information for when DTC P0A7D00 is stored. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.