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Service bulletins for the 2021 Audi S5

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.

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

By type

By component

By trouble code

Bulletins, newest first
A4323722067531_22023-06-06. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information for when the messages "Air suspension: system fault" or "Shock absorber system/suspension" is shown in the instrument cluster, and one or more of the following DTCs are stored B200FF0, B200FF1, B200FF3, B200FF4, B200FF5.
A0023702021205_72023-06-06. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin provides instructions for ordering replacement Safety Certification labels or VIN plates.
A0023692031473_42023-06-06. 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.
A3923542048671_62023-06-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged.
A1923392070349_12023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
A0023682066297_22023-06-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information to Audi technicians regarding the VIN-4-PIN bonus program.
A9423632061922_22023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides details on how to properly document optical concerns in headlights and taillights for warranty submissions.
A9123942018187132023-06-06. 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.
A9423642012749162023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information for when there is moisture accumulation in the exterior lights.
AVIN4PIN202305102023-06-06. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:COOLING SYSTEM; STRUCTURE:BODY:DOOR; ENGINE AND ENGINE COOLING. 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 illuminated and DTC P05A000: Active Grille Air Shutter "A" Stuck is stored in the ECM. Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 Belt noise from starter generator Leak from oil pan USB Trim detached from center console Airbag light on: DTC B100A1B or B100B1B 3.0L engine water pump leaking 3.0L engine sound generator malfunctioning
AVIN4PIN202305012023-06-06. Service bulletin. STRUCTURE:BODY:DOOR; ENGINE AND ENGINE COOLING:COOLING SYSTEM. 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 illuminated and DTC P05A000: Active Grille Air Shutter "A" Stuck is stored in the ECM. Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 Belt noise from starter generator Leak from oil pan Coolant resevoir cap damaged internally USB Trim detached from center console Airbag light on: DTC B100A1B or B100B1B 3.0L engine water pump leaking 3.0L engine sound generator malfunctioning
A9023242054505_42023-05-05. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This bulletin provides instructions for when the sunroof glass panel, or the sunroof rollershade does not operate properly.
A9023232070020_12023-05-05. Service bulletin. VISIBILITY:WINDSHIELD. This bulletin provides information for when there are semi-circular marks on the edges of the display glass.
A4623432069904_12023-05-05. 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_92023-05-05. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A4423982056386_82023-05-05. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A2723532069916_12023-05-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides information related to maintaining the 12V Lead-acid or AGM battery when a vehicle is parked for a prolonged period of time.
A6623982046229_42023-05-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on how to document optical defects in order to submit to Warranty.
A6023662054480_32023-05-05. Service bulletin. VISIBILITY:FIXED PANARAMIC ROOF/SKY LIGHT ASSEMBLY. This informational bulletin contains repair information for Panoramic sunroofs.
A2723522069747_22023-05-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides the ODIS test plan for when the vehicle doesn't start, or the ignition cannot be turned on due to a drained 12V battery (A).
A9023222032113_72023-05-05. Service bulletin. EQUIPMENT. This information bulletin contains a background on the outside air temperature reading.
A9123882060197_32023-05-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information in instances when the message "Emergency call function: malfunction! Function restricted. Please contact service" is displayed in the instrument cluster. DTCs B18BD11 or B18BD13 may be stored in the telematics control module.
A1923362025303142023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants.
A9123832037809_12023-04-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin provides information on how to update the navigation map.
A9123792064681_22023-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information on some situations that may affect wireless charging

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