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.

• 10176066May 20, 2020Equipment. This special notice is to inform dealers to return the part number listed if it meets the criteria provided.
• 10176031May 20, 2020Equipment. This bulletin explains to the reader that a solution is being developed for an issue with the MMI screen going blank when an iPhone is connected, and that the vehicle VIN should be submitted for notification when the solution is ready.
• 10175955May 18, 2020Steering, Suspension, Equipment. The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
• 10175375May 15, 2020Equipment, Electrical system. Apple car play function.
• 10175376May 13, 2020Suspension, 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.
• 10175371May 13, 2020Equipment, Suspension. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
• 10175370May 13, 2020Equipment, Wheels. This technical service bulletin provides instructions for correcting a clicking sound from the wheel bearing(s).
• 10176067May 12, 2020Equipment. This informational bulletin contains instructions for when a phone is connected to the vehicle via Bluetooth, one of the following conditions occurs when the user searches for a contact name in the MMI address book (by using the MMI control knob or the voice recognition system): *The MMI screen goes blank then restarts. *The MMI screen freezes for a few minutes then recovers.
• 10175369May 12, 2020Suspension. The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
• 10175308May 12, 2020Engine cooling, Equipment. This bulletin contains repair instructions for oil loss found in the engine compartment.
• 10175975May 11, 2020Seat belts, Air bags. This bulletin contains instructions for DTCs B130494 and B130594.
• 10175961May 8, 2020Equipment, Visibility (wipers, defrost, mirrors). This bulletin provides instructions on how to clean exterior glass.
• 10174958May 5, 2020Visibility (wipers, defrost, mirrors). This bulletin provides repair information for a creaking in the front and rear windshield.
• 10174949May 5, 2020Fuel system, Engine. The informational bulletin explains why during COVID-19 there is winter-blend fuel during a warmer season and causing some issues.
• 10174559Apr 29, 2020Equipment. This bulletin contains instructions for properly cleaning and removing a musty odor in the vehicle.
• 10174548Apr 28, 2020Engine 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.
• 10174390Apr 24, 2020Electrical system. This bulletin contains information on noises from the instrument cluster installation area.
• 10174389Apr 24, 2020Electrical system. This information bulletin contains a background on the outside air temperature reading.
• 10174391Apr 22, 2020Electrical system. This bulletin contains repair instructions for when a yellow SOS lamp appears with DTC B105313 and B153313.
• 10174434Apr 17, 2020Equipment. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
• 10184530Apr 16, 2020Equipment. This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly.
• 10173866Apr 10, 2020Electrical system. 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.
• 10173856Apr 9, 2020Body and structure. This bulletin contains a cleaning procedure from leftover residue from suction cups or labels.
• 10173847Apr 3, 2020Suspension. This bulletin contains repair instructions for DTC B200FF0.
• 10173838Apr 1, 2020Fuel system. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
• 10172996Mar 30, 2020Other or unknown. This bulletin contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing whrn fully turning the wheel.
• 10172956Mar 25, 2020Other or unknown. This bulletin contains repair instructions for DTC P201500 which may or may not have a MIL on.
• 10172967Mar 24, 2020Other or unknown. This bulletin contains instructions for oil leaking from the vehicle without a DTC.
• 10172900Mar 20, 2020Electrical system. This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00.
• 10172894Mar 18, 2020Electrical system. This bulletin contains instructions for replacing a part or performing a software update for DTC P000000.
• 10172907Mar 17, 2020Electrical system. This bulletin contains information regarding when the message 'Vehicle lights: malfunction' appears with DTC 03280, 01800, or B126AF0.
• 10172899Mar 17, 2020Electrical system. This bulletin contains instructions for when DTC U030000 appears and 'All Wheel Drive Malfunction Message' is displayed in the instrument cluster.
• 10172897Mar 17, 2020Electrical system, Transmission and drivetrain. This bulletin contains instructions for recalibrating the gear sensor when the 'P' displays begin to flicker on the selector display and in the instrument cluster display.
• 10173425Mar 12, 2020Equipment. This bulletin contains instructions for vehicle inspection, protection removal, and detailing.
• 10172605Mar 11, 2020Steering. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800. 48 Steering wheel heater is not working, DTC B145504 is stored in the steering column control module.
• 10172596Mar 11, 2020Engine cooling. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
• 10172546Mar 10, 2020Equipment. This special notice is to inform dealers to return the parts listed and order the superseded part number going forward
• 10172594Mar 6, 2020Fuel system. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
• 10171830Feb 23, 2020Equipment. This bulletin contains inspection guidelines for radio interference that causes noises in the speaker.
• 10171820Feb 20, 2020Equipment. This bulletin contains instructions for when the MMI shows the message 'Read error occurred when accessing the navigation data' after initialization and reboots constantly with DTC B126CF0 and/or B126CF1.
• 10171817Feb 19, 2020Equipment. This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207.
• 10171810Feb 12, 2020Steering. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
• 10171760Feb 12, 2020Equipment. OIL CHART SECTION: CHANGED - Castrol Oil to 'Audi approved XXXX-Refer to the Parts Catalog' for all models.
• 10171350Feb 6, 2020Equipment. This technical service bulletin explains how to determine the status of activation keys (that affect the function of Audi drive select, cruise control, navigation, Bluetooth, smartphone interface and voice recognition), and how to update them.
• 10171340Feb 4, 2020Suspension. This bulletin contains instructions when there is creaking noises from the rear of the vehicle from one of the shock absorber mountings.
• 10171065Jan 30, 2020Electrical system. Additional Maintenance Section: ADDED to Battery - Connected gateway 'for Audi Connected Services' (if applicable)
• 10170802Jan 28, 2020Equipment. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
• 10170804Jan 23, 2020Equipment. This special notice is to inform dealers to return all parts listed and only use the superseded part numbers going forward.
• 10170631Jan 17, 2020Brakes, Equipment. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
• 10169738Dec 20, 2019Equipment, Electrical system. This informational bulletin contains instructions about updating the navigation map.

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