2021 Audi A4 Technical Service Bulletins

1,057 technical service bulletins (TSBs) are on record for the 2021 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.

• 10207110Jan 31, 2022Equipment. This repair bulletin describes a possible defect present in vehicles equipped with virtual cockpit and the associated repair.
• 10207179Jan 28, 2022Equipment, Engine cooling. This bulletin contains instructions for identifying and mixing factory fill coolants.
• 10207147Jan 21, 2022Equipment. This bulletin describes the ways in which a variety of Audi vehicles connect to Apple Wireless CarPlay, and the methods to troubleshoot connection concerns.
• 10207103Jan 21, 2022Equipment, Electrical system. This bulletin describes a concern where the message "SAFE CP" displays in the virtual cockpit and recommends a software update to resolve this matter.
• 10207143Jan 14, 2022Equipment. This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs.
• 10206944Jan 13, 2022Other or unknown, Transmission and drivetrain, Brakes. This repair bulletin describes the process to address a DTC stored in the transmission control module
• 10207170Jan 10, 2022Equipment, Engine cooling. This bulletin contains instructions for identifying and mixing factory fill coolants.
• 10207135Jan 8, 2022Equipment. This bulletin states to create a PSS provides a workaround to address a concern when last destinations, favorites, and home/work addresses are sporadically lost.
• 10207130Jan 7, 2022Equipment. This bulletin explains that the HVAC system cannot be operated by using a voice command
• 10206954Jan 4, 2022Suspension. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
• 10205960Dec 23, 2021Suspension, Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10205969Dec 22, 2021Electrical system. This bulletin states to replace the instrument cluster when DTC B200FF0 is stored and SAFE CP is displayed in the Audi virtual cockpit.
• 10205965Dec 22, 2021Electrical system. This repair bulletin describes a possible defect present in vehicles equipped with virtual cockpit and the associated repair.
• 10205933Dec 22, 2021Wheels. This technical service bulletin provides instructions for correcting a clicking sound from the wheel bearing(s).
• 10205905Dec 22, 2021Steering. This information bulletin provides an explanation for squeaking noises heard when the steering wheel is turned or maneuvered.
• 10205902Dec 22, 2021Electrical system, Transmission and drivetrain. This repair bulletin describes the process to address a DTC stored in the transmission control module
• 10205898Dec 22, 2021Engine cooling, Equipment. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
• 10204722Dec 15, 2021Electrical system. This bulletin contains general instructions for software updates.
• 10204728Dec 13, 2021Equipment. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes.
• 10204959Dec 8, 2021Equipment. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
• 10204963Dec 7, 2021Exterior lighting. This bulletin contains a software update to address various DTCs regarding a tail lamp warning and the warning may flash quicker after actuation.
• 10203712Nov 29, 2021Electrical system, Equipment. This bulletin contains repair instructions for when the Audi virtual cockpit does not start-up with no DTCs.
• 10203729Nov 22, 2021Equipment, Electrical system. This bulletin contains guidance for submitting warranty wiring repairs.
• 10203707Nov 19, 2021Equipment, Tires. This informational bulletin explains how the temporary/collapsible spare wheel inflates.
• 10203598Nov 17, 2021Electrical system. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10203591Nov 12, 2021Electrical system. This bulletin contains instructions for when DTC U030000 appears and “All Wheel Drive Malfunction Message” is displayed in the instrument cluster.
• 10203478Nov 10, 2021Visibility (wipers, defrost, mirrors). This bulletin contains repair instructions for when the rear window defog button will light up and then turn off.
• 10203481Nov 9, 2021Electrical system. This bulletin states to replace the instrument cluster when there is a colorful vertical line (pixel error) in the Audi virtual cockpit.
• 10203477Nov 9, 2021Engine. This bulletin contains instructions for addressing intermediate shaft noises that are heard in the engine compartment.
• 10203173Nov 3, 2021Electrical system. This bulletin states to create a PSS record when the message "SOS - Emergency call malfunction, please contact service" is displayed in the instrument cluster and DTCs B129B11 and B239C11 are stored in the control module for emergency call module and communication unit.
• 10202635Oct 26, 2021Other or unknown. This bulletin states to create a PSS when the MMI display turns blue. Workaround provided.
• 10202578Oct 26, 2021Engine cooling. This bulletin contains instructions for clearing DTCs P023600 and P060600.
• 10202634Oct 20, 2021Other or unknown. This bulletin states to create a PSS record when the detailed interaction map flickers.
• 10202586Oct 20, 2021Transmission and drivetrain. This bulletin contains three different repair scenarios for when DTC P17F900 is stored in the TCM with symptom code 22345 and there is a gearbox malfunction message.
• 10202584Oct 18, 2021Transmission and drivetrain. This bulletin addresses an issue where basic settings cannot be performed as DTC P17F900 is stored in the TCM.
• 10202629Oct 13, 2021Other or unknown. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
• 10202626Oct 13, 2021Equipment, Other or unknown. This bulletin contains repair instructions for when it is not possible to establish a bluetooth connection with DTC U110300.
• 10202623Oct 13, 2021Brakes, Forward collision avoidance. This bulletin states to create a PSS when the MMI display turns blue. Workaround provided.
• 10202594Oct 13, 2021Electrical system. This bulletin contains a software update for when the cluster's driver information system is blank.
• 10202593Oct 12, 2021Other or unknown. This informational bulletin outlines what is damage due to outside influence on a seat belt.
• 10202211Oct 6, 2021Body and structure, Seats. The informational bulletin explains the technical aspect of enter/exit assistance.
• 10202219Oct 1, 2021Equipment. Informational TSB detailing why the mobile device sometimes cannot be charged wirelessly.
• 10201752Sep 28, 2021Equipment. Dealer Communication - Vehicle Sales Reporting, Reinstatement, and Audit Policy Update - Effective September 30, 2021
• 10201546Sep 22, 2021Equipment. This bulletin contains inspection guidelines for radio interference that causes noises in the speaker.
• 10201517Sep 16, 2021Equipment. This bulletin contains repair instructions for when adjusting the MMI volume via the steering wheel controls, the volume sporadically and unintentionally goes all the way to min or max.
• 10201515Sep 16, 2021Electrical system, Equipment. This bulletin explains and troubleshoots when Audi connect does not have a green SOS light.
• 10201496Sep 16, 2021Suspension. This bulletin contains repair instructions for DTC B200FF0.
• 10201514Sep 15, 2021Equipment. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10201507Sep 14, 2021Equipment. This informational bulletin details on how to get a GFF test plan for A/C compressor replacements.
• 10201506Sep 14, 2021Air bags. This bulletin contains instructions for when DTC B101C29 and/or B101D29 is stored in the airbag control module.

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