2018 Audi A4 Technical Service Bulletins

773 technical service bulletins (TSBs) are on record for the 2018 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.

• 10187585Feb 25, 2021Electrical system. This informational bulletin contains software instructions for vehicles with MIB2 with Navigation plus.
• 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).
• 10187977Feb 23, 2021Equipment. This bulletin states to not perform any repairs and show the customer how to manually re-enable the map.
• 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.
• 10187326Feb 16, 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.
• 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.
• 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.
• 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.
• 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, 2020Seats, Electrical system. This bulletin contains a software update that addresses the sporadic issue where the front seats move into an implausible position.
• 10185235Dec 18, 2020Electrical system. This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604.
• 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).
• 10185290Dec 17, 2020Equipment, Electrical system. This informational bulletin contains software instructions for vehicles with MIB2 with Navigation plus.
• 10185256Dec 17, 2020Electrical system, Equipment. This bulletin contains repair instructions for when cables are hanging in view with no DTCs.
• 10185221Dec 10, 2020Equipment, Electrical system. This informational bulletin contains instructions for Audi connect before performing any MMI work.
• 10185202Dec 10, 2020Equipment, Electrical system. This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00.
• 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
• 10185281Dec 1, 2020Equipment, Electrical system. This bulletin contains instructions to update eligible cars from Google Earth to the new service provided by HERE.
• 10183457Nov 18, 2020Brakes, Equipment. This bulletin contains instructions for addressing an ABS warning light with DTCs C050200 and/or C050800.
• 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.
• 10183467Nov 10, 2020Electrical system. This bulletin contains a software update that correct when the Google Map setting is lost.
• 10182518Nov 10, 2020Back-over prevention (rear camera), Electrical system. This bulletin contains a software update for when the rearview/overhead view camera and the optical parking aid are sporadically not switched on when moving into reverse
• 10182517Nov 10, 2020Electrical system, Equipment. This bulletin contains a software update for when the MMI screens go blank and the system reboots, it may have stored DTC U10CF00 and/or B13B901.
• 10182491Nov 10, 2020Electrical system, Back-over prevention (rear camera), Equipment. This bulletin contains a software update for when the reversing camera switches from camera view to graphic view intermittently.
• 10182482Nov 9, 2020Transmission and drivetrain, Equipment. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
• 10182479Nov 4, 2020Equipment. Added Saga Part number for 0W40 oil: SAGA Part: G E55040S0
• 10182173Oct 29, 2020Equipment, Engine cooling. This bulletin contains repair instructions for oil loss found in the engine compartment.
• 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.
• 10181818Oct 22, 2020Electrical system. This bulletin contains instructions to update eligible cars from Google Earth to the new service provided by HERE.

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