2018 Audi S4 Technical Service Bulletins

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

• 10242938Sep 7, 2023Transmission and drivetrain. This bulletin provides information for when there are noises and/or vibrations in tight turns.
• 10242903Sep 7, 2023Engine cooling. This bulletin provides information on professional noise analysis with the VAS 611 015 PICO NVH Tool.
• 10241458Aug 23, 2023Equipment. This bulletin provides information for when the customer has concerns about the navigation route guidance.
• 10241433Aug 18, 2023Visibility (wipers, defrost, mirrors). This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
• 10241429Aug 10, 2023Body and structure. This bulletin provides information for an entry/exit assistance comfort concern.
• 10240154Jul 19, 2023Electrical system. This bulletin provides information for when there is noise from the area around the instrument cluster.
• 10240152Jul 19, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information on the GFF test plan required when replacing the A/C compressor.
• 10239690Jul 19, 2023Forward collision avoidance, Brakes. This bulletin provides information for when an unexpected Audi presense front intervention such as a front end warning, a warning jolt, partial braking, or emergency braking occurs and a warning appears in the instrument cluster and audibly.
• 10239686Jul 19, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when exterior glass cleaning is needed.
• 10240212Jul 17, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when the washer solvent level warning is on.
• 10239680Jul 14, 2023Engine cooling. This bulletin provides information for when there is an oil leak from the cylinder head.
• 10238397Jun 30, 2023Seat belts. This bulletin provides information for when the seatbelt is hard to latch in the belt buckle.
• 10238396Jun 30, 2023Air bags. This bulletin provides information for when the airbag warning light is on and DTC B13BCF2 is stored in the airbag control module.
• 10238358Jun 29, 2023Steering. This bulletin provides information for when noises are heard inside the vehicle via the intermediate steering shaft.
• 10238357Jun 29, 2023Steering. This bulletin provides information for when the yellow steering malfunction light is on in the cluster and DTC C110DF0 is stored in the active steering module.
• 10238318Jun 29, 2023Steering. This bulletin provides information for when there are squeaking noises from the rubber boot of the intermediate steering shaft.
• 10238235Jun 20, 2023Brakes. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29.
• 10238233Jun 20, 2023Steering. This bulletin provides information for instances where the steering wheel leather is damaged.
• 10238273Jun 15, 2023Engine cooling. This bulletin provides information on checking for debris when replacing an engine.
• 10238241Jun 14, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when an unpleasant odor is coming from the heating and ventilation system.
• 10238221Jun 14, 2023Visibility (wipers, defrost, mirrors). This bulletin provides information for when an unpleasant odor is coming from the heating and ventilation system.
• 10238169Jun 13, 2023Body and structure. This bulletin provides information for when the luggage compartment lid cannot be closed using the button(s) in the luggage compartment trim.
• 10238194Jun 8, 2023Exterior lighting. This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights.
• 10238172Jun 5, 2023Electrical system. This bulletin provides information regarding the Audi advanced key.
• 10238177Jun 2, 2023Air bags. This bulletin provides instructions for when the airbag light is illuminated in the DIS, and may also be illuminated in the overhead console, and it is accompanied by DTC B122551.
• 10237395May 24, 2023Equipment. This bulletin provides information on the operation of the entry/exit assistance feature.
• 10237017May 22, 2023Visibility (wipers, defrost, mirrors). This bulletin provides instructions for when the washer level warning is on but the reservoir is full.
• 10236617May 19, 2023Electrical system. This bulletin provides an SVM update for when the warning light for the suspension appears in the instrument cluster, and the SVM registers an unknown event when carrying out "Check control unit configuration" and cannot be automatically parameterized.
• 10236615May 19, 2023Electrical system. This bulletin advises that if the warning lamp for the damper control in the instrument cluster is on, and DTC B200FF0 is stored to delete the DTC and perform suspension basic settings.
• 10236613May 19, 2023Suspension, Electrical system. This bulletin provides information for when the messages "Air suspension: system fault" or "Shock absorber system/suspension" is shown in the instrument cluster, and one or more of the following DTCs are stored B200FF0, B200FF1, B200FF3, B200FF4, B200FF5.
• 10236572May 17, 2023Engine cooling. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
• 10236601May 12, 2023Equipment. This bulletin provides instructions for ordering replacement Safety Certification labels or VIN plates.
• 10236591May 9, 2023Electrical system. This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged.
• 10236373May 9, 2023Exterior lighting. This bulletin provides information for when there is moisture accumulation in the exterior lights.
• 10236599May 8, 2023Exterior lighting, Body and structure. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender.
• 10236562May 8, 2023Equipment. This bulletin provides information to Audi technicians regarding the VIN-4-PIN bonus program.
• 10236378May 8, 2023Exterior lighting. This bulletin provides details on how to properly document optical concerns in headlights and taillights for warranty submissions.
• 10236376May 8, 2023Engine cooling. This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference.
• 10236628May 5, 2023Electrical system, Seats. This bulletin provides information for when the starter battery is discharged, and the vehicle cannot be started due to the front adjustment seat switch becoming jammed.
• 10235531Apr 28, 2023Equipment. Inside the Rings | Volume 12, Spring 2023
• 10235502Apr 25, 2023Visibility (wipers, defrost, mirrors). This bulletin provides instructions for when the sunroof glass panel, or the sunroof rollershade does not operate properly.
• 10235354Apr 19, 2023Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10235359Apr 18, 2023Equipment, Brakes, Other or unknown. This bulletin provides information for when there are noises when braking, and the brake pad thickness is OK.
• 10235336Apr 18, 2023Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10235122Apr 17, 2023Equipment. This bulletin provides information related to maintaining the 12V Lead-acid or AGM battery when a vehicle is parked for a prolonged period of time.
• 10234582Apr 13, 2023Equipment. This bulletin provides information on how to document optical defects in order to submit to Warranty.
• 10234559Apr 13, 2023Equipment. This information bulletin contains a background on the outside air temperature reading.
• 10233771Mar 31, 2023Engine cooling. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants.
• 10233603Mar 31, 2023Visibility (wipers, defrost, mirrors), Body and structure. This bulletin describes the process to clean sticker residue from the windshield.
• 10233378Mar 27, 2023Electrical system. This bulletin provides information for when the 48V battery is in a low voltage protection state and will not accept a charge; DTC P0A7D00 is logged.

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