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.

• 10187349Feb 10, 2021Equipment. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
• 10186994Feb 10, 2021Brakes. This technical service bulletin provides troubleshooting for brake noise.
• 10186993Feb 10, 2021Brakes. This informational bulletin provides diagnostic information for brake conditions.
• 10186992Feb 10, 2021Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10186983Feb 9, 2021Equipment. This informational bulletin covers the condition of when license plate mounting bracket threaded inserts are stripped.
• 10186982Feb 9, 2021Wheels. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
• 10187000Feb 4, 2021Equipment. This informational contains instruction on how to document optical concerns for warranty claims.
• 10186995Feb 4, 2021Electrical system. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10186984Feb 3, 2021Seats. This bulletin contains instructions for when the second row backrests won't fold.
• 10186945Feb 2, 2021Engine cooling. This bulletin contains instructions for using the UV additive to find engine oil leaks.
• 10186510Jan 29, 2021Engine cooling. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
• 10186508Jan 29, 2021Engine cooling. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody.
• 10186569Jan 25, 2021Brakes. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
• 10186565Jan 19, 2021Equipment. This bulletin states to ignore DTCs U156C00, B1A06F1, B1A06F2 and to not perform any repairs or run any test plans for these ghost DTCs.
• 10186590Jan 18, 2021Equipment. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
• 10185651Jan 13, 2021Engine cooling, Equipment. This bulletin contains instructions for when there may be a noise from the exhaust flap or there are DTCs sporadically stored in the ECM.
• 10185672Jan 12, 2021Body and structure. This informational bulletin outlines proper warranty procedure for optical defects.
• 10185664Jan 12, 2021Equipment, Electrical system. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
• 10185680Jan 8, 2021Seats, Electrical system. This bulletin contains a software update that addresses the sporadic issue where the front seats move into an implausible position.
• 10185274Dec 18, 2020Electrical system, Seats. This bulletin contains a software update that addresses the sporadic issue where the front seats move into an implausible position.
• 10185232Dec 18, 2020Equipment, Engine. This bulletin contains instructions for addressing discoloration due to moisture on a new vehicle.
• 10185155Dec 18, 2020Equipment. This special notice is to inform dealers to return the part numbers listed (State of California only).
• 10185256Dec 17, 2020Electrical system, Equipment. This bulletin contains repair instructions for when cables are hanging in view with no DTCs.
• 10185250Dec 11, 2020Equipment, Electrical system. MyAudi login is not possible in affected vehicles. Updated Affected Vehicles Chart.
• 10185221Dec 10, 2020Equipment, Electrical system. This informational bulletin contains instructions for Audi connect before performing any MMI work.
• 10185283Dec 9, 2020Equipment. SOS emergency call malfunction, DTC B129B11 and B129C11 are stored in the emergency call control module
• 10185230Dec 7, 2020Electrical system. This bulletin contains instructions for when DTC U101300 is logged with sports differential warning lamps or messages.
• 10185206Dec 4, 2020Equipment. This special notice is to inform dealers to return the part numbers listed and order the superseded part numbers
• 10183493Nov 24, 2020Equipment, Electrical system. This bulletin states to create a PSS record when the HomeLink Garage Door Opener is grayed out while driving and the message 'For your safety, this function is not available while driving' is displayed when 'clicking' on it. The geolocation feature does not work either.
• 10183484Nov 24, 2020Engine cooling. This bulletin covers Audi connect: oil level in the myAudi app is implausible
• 10183460Nov 18, 2020Electrical system, Equipment. This bulletin contains a software update for when the navigation instructions conflict between the HUD and the MMI or instrument cluster.
• 10183457Nov 18, 2020Brakes, Equipment. This bulletin contains instructions for addressing an ABS warning light with DTCs C050200 and/or C050800.
• 10183468Nov 17, 2020Electrical system, Equipment. This informational bulletin contains information regarding connectivity issues.
• 10183456Nov 17, 2020Brakes, Equipment. This bulletin contains instructions for addressing a brake pad wear indicator light with no DTCs.
• 10183427Nov 13, 2020Equipment, Steering. This bulletin contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing when fully turning the wheel.
• 10182479Nov 4, 2020Equipment. Added Saga Part number for 0W40 oil: SAGA Part: G E55040S0
• 10182070Oct 27, 2020Electrical system. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
• 10181981Oct 27, 2020Steering. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
• 10182046Oct 26, 2020Equipment, Electrical system. This bulletin contains a guide for troubleshooting HD radio issues.
• 10181834Oct 16, 2020Electrical system, Equipment. This bulletin contains repair instructions for DTC B200FF1 and B200FF2.
• 10181815Oct 16, 2020Body and structure, Equipment. This bulletin contains instructions for when the black optic trim is discolored.
• 10181058Oct 8, 2020Body and structure, Engine. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody.
• 10181185Oct 7, 2020Equipment, Electrical system. This informational bulletin directs you to read the SSP and not perform any repairs for the concern.
• 10181056Oct 7, 2020Engine cooling, Equipment. This bulletin contains information for diagnosing the Start/Stop system.
• 10181370Oct 6, 2020Equipment. This informational bulletin explains a technical change to the vehicle.
• 10181436Oct 5, 2020Equipment, Forward collision avoidance, Electrical system. This bulletin contains calibration information for the front camera.
• 10181059Oct 5, 2020Engine cooling, Equipment. This bulletin contains instructions for using the UV additive to find engine oil leaks.
• 10180155Sep 24, 2020Wheels, Tires, Equipment. Added new graphic to reflect where to find MY 21 information
• 10180147Sep 17, 2020Equipment, Electrical system, Body and structure. This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'.
• 10180103Sep 17, 2020Equipment, Electrical system. MyAudi login is not possible in affected vehicles. Updated work instructions to use Guided Fault Finding instead of Audi Flashing

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