2020 Audi S4 Technical Service Bulletins

942 technical service bulletins (TSBs) are on record for the 2020 Audi S4. 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.

• 10189141Mar 9, 2021Engine cooling. This bulletin contains instructions for determining if a repair is needed when coolant touches a poly V-belt and/or a toothed belt.
• 10188604Mar 2, 2021Electrical system. This bulletin contains general software update instructions for vehicles with PR Code 7UH.
• 10188602Mar 2, 2021Equipment. This informational bulletin contains instructions about updating the navigation map.
• 10188591Mar 2, 2021Equipment. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
• 10188590Mar 2, 2021Engine cooling. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
• 10188548Mar 2, 2021Electrical system. This bulletin contains instructions for documenting the "Please reduce Oil Level" message in the instrument cluster potentially with an Engine Warmup request.
• 10188614Mar 1, 2021Electrical system. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
• 10187973Feb 26, 2021Visibility (wipers, defrost, mirrors). This bulletin contains repair instructions for when the rear window defog button will light up and then turn off.
• 10187578Feb 25, 2021Brakes. This bulletin contains repair instructions for when the vehicle sporadically does not start and there is a hard brake pedal concern.
• 10187575Feb 25, 2021Equipment, Brakes. This informational contains an explanation for when the customer hears creaking noises when braking at almost standstill (crawling when pulling away or briefly before standstill).
• 10187573Feb 24, 2021Equipment. This special notice is to inform dealers to return the part numbers listed (State of California only).
• 10187509Feb 18, 2021Electrical system. This bulletin contains guidance for submitting warranty wiring repairs.
• 10187508Feb 17, 2021Exterior lighting. This bulletin contains instructions for addressing condensation in the headlights.
• 10187506Feb 17, 2021Equipment. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10187353Feb 17, 2021Equipment. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
• 10187352Feb 17, 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.
• 10187510Feb 12, 2021Equipment. This Document informs dealers on the new A/C evaporator warranty extension for 2017-2021 A4/S4/Q7 and 2018-2021 A5/S5/Q5 vehicles
• 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.
• 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.
• 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, 2021Equipment, Engine cooling. 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.
• 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, 2020Electrical system, Equipment. MyAudi login is not possible in affected vehicles. Updated Affected Vehicles Chart.
• 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.
• 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, 2020Equipment, Electrical system. 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.
• 10182479Nov 4, 2020Equipment. Added Saga Part number for 0W40 oil: SAGA Part: G E55040S0
• 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, 2020Equipment, Body and structure. This bulletin contains instructions for when the black optic trim is discolored.
• 10181058Oct 8, 2020Engine, Body and structure. 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.

← All problems reported for the 2020 Audi S4