2020 Audi A4 Technical Service Bulletins

1,071 technical service bulletins (TSBs) are on record for the 2020 Audi A4. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10238241Jun 14, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when an unpleasant odor is coming from the heating and ventilation system.
• 10238221Jun 14, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when an unpleasant odor is coming from the heating and ventilation system.
• 10238169Jun 13, 2023Body and structure. This bulletin provides information for when the luggage compartment lid cannot be closed using the button(s) in the luggage compartment trim.
• 10238189Jun 12, 2023Electrical system, Equipment. This bulletin provides information for when the parking aid sensor bracket(s) separate from the rear bumper.
• 10238194Jun 8, 2023Exterior lighting. This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights.
• 10238159Jun 6, 2023Electrical system. This bulletin provides additional diagnostic instructions for when the vehicle does not start due to a drained 12v battery (A).
• 10238191Jun 5, 2023Equipment, Electrical system. This bulletin provides a software update for instances where saved addresses (including the home address), favorites, last destinations, and/or icon and shortcut order are lost sporadically, the MMI screen turns blue, or becomes stuck on the welcome screen.
• 10238172Jun 5, 2023Electrical system. This bulletin provides information regarding the Audi advanced key.
• 10237395May 24, 2023Equipment. This bulletin provides information on the operation of the entry/exit assistance feature.
• 10237017May 22, 2023Visibility (wipers, defrost, mirrors). This bulletin provides instructions for when the washer level warning is on but the reservoir is full.
• 10236617May 19, 2023Electrical system. This bulletin provides an SVM update for when the warning light for the suspension appears in the instrument cluster, and the SVM registers an unknown event when carrying out "Check control unit configuration" and cannot be automatically parameterized.
• 10236615May 19, 2023Electrical system. This bulletin advises that if the warning lamp for the damper control in the instrument cluster is on, and DTC B200FF0 is stored to delete the DTC and perform suspension basic settings.
• 10236613May 19, 2023Suspension, Electrical system. 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.
• 10236601May 12, 2023Equipment. This bulletin provides instructions for ordering replacement Safety Certification labels or VIN plates.
• 10236588May 12, 2023Transmission and drivetrain. This bulletin provides instructions for when DTC P1A5B00 is stored after replacing the transmission control module or valve body for another concern.
• 10237002May 9, 2023Electrical system. This bulletin provides instructions to disable the configuration wizard.
• 10236591May 9, 2023Electrical system. This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged.
• 10236373May 9, 2023Exterior lighting. This bulletin provides information for when there is moisture accumulation in the exterior lights.
• 10236599May 8, 2023Exterior lighting, Body and structure. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender.
• 10236562May 8, 2023Equipment. This bulletin provides information to Audi technicians regarding the VIN-4-PIN bonus program.
• 10236378May 8, 2023Exterior lighting. This bulletin provides details on how to properly document optical concerns in headlights and taillights for warranty submissions.
• 10236376May 8, 2023Engine cooling. This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference.
• 10236628May 5, 2023Electrical 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.
• 10235502Apr 25, 2023Visibility (wipers, defrost, mirrors). This bulletin provides instructions for when the sunroof glass panel, or the sunroof rollershade does not operate properly.
• 10235354Apr 19, 2023Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10235359Apr 18, 2023Equipment, Brakes, Other or unknown. This bulletin provides information for when there are noises when braking, and the brake pad thickness is OK.
• 10235336Apr 18, 2023Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10235122Apr 17, 2023Equipment. 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.
• 10234582Apr 13, 2023Equipment. This bulletin provides information on how to document optical defects in order to submit to Warranty.
• 10234565Apr 13, 2023Electrical 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).
• 10234559Apr 13, 2023Equipment. This information bulletin contains a background on the outside air temperature reading.
• 10234556Apr 5, 2023Electrical 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.
• 10233771Mar 31, 2023Engine cooling. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants.
• 10233603Mar 31, 2023Visibility (wipers, defrost, mirrors), Body and structure. This bulletin describes the process to clean sticker residue from the windshield.
• 10233378Mar 27, 2023Electrical system. This bulletin provides information for when the 48V battery is in a low voltage protection state and will not accept a charge; DTC P0A7D00 is logged.
• 10233737Mar 23, 2023Equipment. This bulletin provides information on how to update the navigation map.
• 10233696Mar 23, 2023Wheels. This technical service bulletin provides instructions for correcting a clicking sound from the wheel bearing(s).
• 10233645Mar 23, 2023Equipment. This bulletin provides information for when various warning lamps are unintentionally illuminated while driving with the ACC activated.
• 10233544Mar 23, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when the rear window defogger is not operational.
• 10233489Mar 23, 2023Steering. This bulletin states that squeaking noises which may be more prevalent in wet weather during steering is normal and repair is not needed.
• 10233376Mar 23, 2023Electrical system. This bulletin provides information for when the vehicle does not start due to a drained battery.
• 10233734Mar 22, 2023Seats. This bulletin provides information for when the pop-up message for the seat massage function is no longer displayed on the MMI screen when the massage button is pressed.
• 10233636Mar 17, 2023Back-over prevention (rear camera). This bulletin provides information for when the virtual cockpit is distorted due a broken screen caused by outside influence.
• 10233628Mar 17, 2023Back-over prevention (rear camera), Body and structure. This bulletin provides instructions for when the Audi virtual cockpit display remains blank when the driver's door is opened and the driver enters the vehicle. After the ignition is switched off and back on, the display may return to normal operation, but may also remain black.
• 10233300Mar 17, 2023Suspension, Brakes. This bulletin provides instruction for when there are noises heard during steering or braking maneuvers.
• 10233700Mar 8, 2023Electrical system. This bulletin provides information on some situations that may affect wireless charging
• 10233692Mar 8, 2023Electrical system. This bulletin provides information for when the message "Emergency call function: malfunction! Function restricted. Please contact service" is displayed in the instrument cluster; one of the following DTCs may be stored in the telematics control module: B18BD11, or B18BD13.
• 10233302Mar 8, 2023Electrical system, Back-over prevention (rear camera). This bulletin states that it takes about 20 seconds after switching the ignition on for the Audi Pre Sense symbol advising that "Audi pre sense not available at the moment"
• 10232045Feb 16, 2023Equipment, Visibility (wipers, defrost, mirrors). This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn completely blue until a bus sleep or an MMI reboot is performed. For Q3 vehicles, MMI may get stuck on the welcome screen. No DTCs are stored.
• 10232049Feb 14, 2023Electrical system. This bulletin provides instructions for when the anti-theft alarm has gone off for no reason, or did not go off at all. No DTCs are stored.

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