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.

• 10210235Apr 8, 2022Transmission and drivetrain. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues.
• 10210254Apr 7, 2022Brakes. This technical service bulletin provides troubleshooting for brake noise.
• 10210248Apr 7, 2022Body and structure. This informational bulletin outlines proper warranty procedure for optical defects.
• 10209454Mar 29, 2022Equipment. Dealer Communication: Vehicle Sales Reporting, Reinstatement, and Audit Policy
• 10209453Mar 29, 2022Suspension. This bulletin describes the proper procedure to address a clicking or clacking noise from the wheel bearing
• 10209452Mar 29, 2022Electrical system, Equipment. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
• 10209408Mar 29, 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.
• 10209405Mar 25, 2022Electrical system. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
• 10209279Mar 23, 2022Other or unknown. Update the emergency call module control unit and communication unit software. Added claiming and work instructions in the event an Emergency Call Module Control Unit and Communication Unit is faulty.
• 10209269Mar 23, 2022Other or unknown. Update the emergency call module control unit and communication unit software. Added claiming and work instructions in the event an Emergency Call Module Control Unit and Communication Unit is faulty.
• 10209238Mar 17, 2022Transmission and drivetrain. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues.
• 10209266Mar 16, 2022Equipment. This informational bulletin contains instructions about updating the navigation map.
• 10209245Mar 16, 2022Suspension. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps.
• 10209242Mar 15, 2022Suspension. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
• 10209111Mar 14, 2022Equipment. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
• 10209107Mar 9, 2022Electrical system. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
• 10208894Mar 3, 2022Engine cooling. This bulletin contains instructions for using the UV additive to find engine oil leaks.
• 10208493Feb 23, 2022Equipment, Electrical system. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
• 10208521Feb 22, 2022Other or unknown, Electrical system. Update the emergency call module control unit and communication unit software.
• 10208509Feb 22, 2022Other or unknown, Equipment. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
• 10208481Feb 22, 2022Equipment. This bulletin contains repair instructions for proper transport mode deactivation (DTC U142100, DTC P169A00, and U13EB00 ).
• 10208458Feb 22, 2022Equipment. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
• 10208529Feb 21, 2022Electrical system, Other or unknown. Update the emergency call module control unit and communication unit software.
• 10208224Feb 10, 2022Electrical system, Lane departure. A software malfunction in the MMI may cause the steering correction setting for the lane assist to not be available. A solution is currently under development, and the bulletin requests that technicians submit a PSS record for review.
• 10208209Feb 10, 2022Air bags. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored.
• 10208261Feb 8, 2022Engine cooling. This bulletin describes various conditions that may have arisen due to a leak in the corrugated windshield washer hose, and the associated repair.
• 10207820Feb 7, 2022Electrical system, Steering. The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update.
• 10207819Feb 1, 2022Steering. This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly.
• 10207210Jan 31, 2022Brakes. This informational bulletin provides diagnostic information for brake conditions.
• 10207207Jan 31, 2022Wheels. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
• 10207160Jan 31, 2022Equipment, Forward collision avoidance. This bulletin states to create a PSS record for when the star button is programmed to the front camera views and is lost after a bus sleep cycle.
• 10207152Jan 31, 2022Equipment, Electrical system. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
• 10207150Jan 31, 2022Equipment. This bulletin provides troubleshooting tips for logging in to Audi Connect and Key User Pairing
• 10207121Jan 31, 2022Brakes, Equipment. This technical service bulletin provides troubleshooting for brake noise.
• 10207179Jan 28, 2022Engine cooling, Equipment. This bulletin contains instructions for identifying and mixing factory fill coolants.
• 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.
• 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.
• 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.
• 10205898Dec 22, 2021Equipment, Engine cooling. 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, 2021Electrical system, Equipment. This bulletin contains guidance for submitting warranty wiring repairs.

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