2020 Audi S4 Technical Service Bulletins

941 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.

• 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.
• 10201505Sep 14, 2021Air bags. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored.
• 10201510Sep 1, 2021Back-over prevention (rear camera). 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.
• 10201491Sep 1, 2021Equipment. This informational bulletin gives instructions for identifying chip tuning.
• 10200703Aug 25, 2021Equipment. This technical service bulletin informs the reader that damage to the appearance of the leather steering wheel caused by outside influence is not covered under warranty.
• 10200446Aug 17, 2021Equipment. This bulletin contains information on how addressing the Bluetooth/address book download.
• 10200439Aug 17, 2021Equipment, Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10200445Aug 10, 2021Equipment. This bulletin contains instructions for submitting a customer registration form for the Audi phone box to the customer's Mobile Network Operator.
• 10199926Aug 2, 2021Suspension. 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.
• 10199925Aug 2, 2021Suspension, Equipment. 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.
• 10199717Jul 26, 2021Equipment, Fuel system, Engine cooling. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
• 10199217Jul 13, 2021Equipment, Electrical system. This informational bulletin contains instructions for when a non-plus sized iPhone heats up while wirelessly charging and the CarPlay screen may appear frozen.
• 10199221Jul 12, 2021Equipment, Electrical system, Body and structure. This bulletin contain instructions for addressing issues with the garage door remote and HomeLink.
• 10198643Jun 30, 2021Engine cooling, Equipment. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
• 10198567Jun 25, 2021Equipment, Body and structure. This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.
• 10198254Jun 23, 2021Equipment. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10198246Jun 23, 2021Body and structure, Exterior lighting, Equipment. This information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again.
• 10198234Jun 23, 2021Equipment, Exterior lighting. This information bulletin explains how the daylights turn on and off.
• 10197899Jun 9, 2021Equipment, Engine. This bulletin contains instructions for addressing intermediate shaft noises that are heard in the engine compartment.
• 10197898Jun 9, 2021Equipment, Steering. This bulletin states how to check for a dynamic steering actuator problem. Solution is under development.
• 10197897Jun 4, 2021Electrical system, Equipment, Steering. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
• 10197894Jun 4, 2021Equipment. This bulletin contains repair instructions for DTC B200FF0.
• 10194491May 26, 2021Equipment, Electrical system. This bulletin contains an explanation and troubleshooting for the Navigation messages in the instrument cluster.
• 10194418May 18, 2021Equipment, Electrical system. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
• 10194376May 18, 2021Seat belts. This informational bulletin outlines what is damage due to outside influence on a seat belt.
• 10193583May 13, 2021Brakes, Equipment. This bulletin contains instructions for determining unexpected Audi presense interventions.
• 10193573May 13, 2021Equipment, Engine cooling. This technical service bulletin reminds the reader to check for metal debris when replacing an engine.
• 10193548May 13, 2021Equipment. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage).
• 10193228May 6, 2021Visibility (wipers, defrost, mirrors). This bulletin provides instructions on how to clean exterior glass.
• 10193041May 6, 2021Equipment. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10193225May 4, 2021Steering. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
• 10191558Apr 30, 2021Electrical system. Elsa2Go campaign information is now 100% aligned with ElsaPro. This update to Elsa2Go ensures that both systems are displaying the same campaign information, including OPEN/CLOSED status, repair date as well as criterions at the same time without any discrepancy.
• 10191141Apr 29, 2021Equipment. This information bulletin contains a background on the outside air temperature reading.
• 10191042Apr 26, 2021Electrical system. This informational bulletin explains why the version information pops-up.
• 10191547Apr 21, 2021Equipment. This bulletin states to create a PSS record when the HomeLink Garage Door Opener is grayed out while driving and the message "œFor your safety, this function is not available while driving" is displayed when "œclicking" on it. The geolocation feature does not work either.
• 10191544Apr 21, 2021Electrical system. This bulletin contains information on noises from the instrument cluster installation area.
• 10191005Apr 20, 2021Steering. This buletin contains a software update when there is a red steering warning lamp and DTC B200000 is stored.
• 10190523Apr 15, 2021Equipment. This bulletin contains a cleaning procedure from leftover residue from suction cups or labels.
• 10190286Apr 8, 2021Equipment. This bulletin contains instructions for when the nav files are corrupted during an update.
• 10190280Apr 1, 2021Electrical system, Latches, locks and linkages. This technical service bulletin provides troubleshooting information for the vehicle locking system.
• 10190277Apr 1, 2021Equipment. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes.
• 10189653Mar 29, 2021Equipment. This bulletin contains repair instructions for when there is radio static when the rear heater is active.
• 10189529Mar 25, 2021Engine cooling. This bulletin states that this is a normal condition and to not perform any repairs.
• 10189528Mar 23, 2021Engine cooling. This bulletin contains instructions for documenting the "Please reduce Oil Level" message in the instrument cluster potentially with an Engine Warmup request.
• 10189324Mar 19, 2021Equipment. This bulletin contains instructions for addressing an insufficient or uneven heating performance from the HVAC system.
• 10189325Mar 18, 2021Exterior lighting. This informational bulletin contains information on the different shading of LED headlights.
• 10189144Mar 16, 2021Steering. This bulletin contains repair instructions for repositioning the intermediate steering shaft when there is squeaking noises from the steering column.
• 10189150Mar 15, 2021Electrical system. This bulletin contains instructions for when the nav files are corrupted during an update.
• 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.

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