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Service bulletins for the 2023 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.

868 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
A7024862044417102024-02-06. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY:ROOF AND PILLARS. This bulletin provides information for when there are noises from the headliner/sunroof area.
A0124072071243_12024-02-06. Service bulletin. UNKNOWN OR OTHER; ENGINE. This bulletin provides information when whistling noises are heard from the turbocharger at 1500-2200 rpm and approximately 70% load on 4 cyl 2.0 TFSI.
A9724052069123_22024-02-06. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. This bulletin provides information for when DTC U064100, or U06400 are stored for fuel tank breather, and the MIL is illuminated.
A9124592071693_22024-02-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. This bulletin requests that a record be entered into the Pending Service Solutions database in instances where the Bluetooth is inoperable or greyed out, Audi connect features are in operable, there is an antenna malfunction or there is an SOS malfunction.
A9024722072065_22024-02-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides information when there are flickering lines in Audi virtual cockpit.
A2024652069834_32024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This repair authorization provides information on N80 purge line performance P04F000.
A5724292072587_12024-02-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin requests that technicians create a PSS record in the Pending Service Solutions Database in instance where Safe CP showing in the instrument cluster with DTC U110100.
A3424672067653_62024-02-06. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This bulletin provides information when there is function restriction with event memory P071800 - P276800 (symptom 20736-20737).
A1524462072713_12024-02-06. Service bulletin. POWER TRAIN. This bulletin provides service information on noises from the drivetrain duel-mass flywheel.
A0124062072710_12024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This PSS requests that technicians add a record to the Pending Service Solutions database in instances where the Engine control unit has faults P060C00 and U014600.
AUD4927ENG2024-01-22. Service bulletin. UNKNOWN OR OTHER. Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota.
A9123062024323102024-01-04. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin provides information when the parking assistance provides false warnings.
A1323222072511_12024-01-04. Service bulletin. POWER TRAIN; FUEL SYSTEM, OTHER:KINETIC:FLYWHEEL,BEARINGS. This bulletin provides service information when there are noises from the drivetrain, dual mass flywheel.
A0023822047812_72024-01-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information on how to set up and use the SD Creator for obtaining vehicle software updates via the Mirror Server.
A9123552072457_12024-01-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides information when ConBox: DTC B1916F5 or B191604 entered in address word 0075
A9123542067843_32024-01-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information when the configuration appears without apparent reason with MIB3.
A4523362072304_12024-01-04. Service bulletin. UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.
A4223542038689_82024-01-04. Service bulletin. SUSPENSION:REAR; UNKNOWN OR OTHER. This bulletin provides information when there is a rattle noise from the rear suspension.
A3523472064312_52024-01-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); UNKNOWN OR OTHER. This bulletin provides information when the Gearbox warning is on, DTC P17F900 is stored in the TCM.
A3423662067653_52024-01-04. Service bulletin. EQUIPMENT:ELECTRICAL; UNKNOWN OR OTHER. This bulletin provides information for when there is a function restriction with event memory entry P071800 - P276800 (symptom 20736 - 20737).
A9023592069331_22024-01-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information when there is a message in the instrument cluster: :Instrument cluster: fault. Limited warning messages. Please contact workshop"; B200096.
A7223512072225_12024-01-04. Service bulletin. SEATS. This bulletin requests that technicians create a record in the Pending Service Solutions database in instances where there is noise from the backrest of the front seat.
A0123022072273_12024-01-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for when the MIL is on; one or more DTCs stored; P200400, P200600, P201400, P201500.
AVIN4PIN202311102023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 3.0L engine sound generator malfunctioning Fuel pressure low. DTC P008700 "Check engine lamp on, DTC P042000: Catalyst System,Bank1 Efficiency Below Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Coolant leak from expansion tank noise from belt tensioner damper coolant reservoir cap broken Coolant pump leaking 48V BSG DTC U046900 / 36564: Invalid Data Received from Starter/Generator
AVIN4PIN202311202023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 3.0L engine sound generator malfunctioning Fuel pressure low. DTC P008700 "Check engine lamp on, DTC P042000: Catalyst System,Bank1 Efficiency Below Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Coolant leak from expansion tank noise from belt tensioner damper coolant reservoir cap broken Coolant pump leaking Wheel speed sensor DTC C101AF1;C101BF1;C101CF1;C101DF1

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.