Technical Service Bulletins (TSBs) for the 2021 A4 allroad are official communications between Audi & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
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. Read More »
The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update. Read More »
This bulletin contains repair instructions for repositioning the intermediate steering shaft when there is squeaking noises from the steering column. Read More »
This bulletin provides instructions to update software to address a steering malfunction warning in the instrument cluster with DTC B200FF0 or C12A329. Read More »
The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update. Read More »
This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly. Read More »
This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly. Read More »
This bulletin provides information when DTCs B200FF0, B200FF1, B200FF3, or B200FF4, B200FF5 are stored in the J775 suspension control unit. Read More »
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, ... Read More »
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. Read More »
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 ... Read More »
This bulletin states that moisture has been identified on one of the rear brake calipers; this fluid is from the production process of the components and does not require repair. Read More »
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. Read More »
This bulletin provides information when whistling noises are heard from the turbocharger at 1500-2200 rpm and approximately 70% load on 4 cyl 2.0 TFSI. Read More »
This bulletin provides instructions for when "Gearbox Malfunction" and/or vehicle does not shift up or down, and/or vehicle is in limp mode home, and/or "reverse gear is unavailable" displayed in the instrument cluster, and/or "You can ... Read More »
This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference. Read More »
This bulletin provides instructions for when there is a grinding/squeaking/tweeting noise coming from the engine compartment OR there is a message in the driver information system stating "Electrical system Malfunction! Please go to ... Read More »
This bulletin advises on the repair recommendation for a squeaking, grinding, or tweeting noise coming from the engine compartment. DTC P2BA300 may be stored. Read More »
This bulletin advises that techs should document the specific o-ring seal that is replaced if a refrigerant leak is found and caused by the o-ring seal. Read More »
This bulletin provides instructions for when there is a grinding/squeaking/tweeting noise coming from the engine compartment OR there is a message in the driver information system stating "Electrical system Malfunction! Please go to ... Read More »
This bulletin describes various conditions that may have arisen due to a leak in the corrugated windshield washer hose, and the associated repair. Read More »
This bulletin provides instructions for when DTC P1A5B00 is stored after replacing the transmission control module or valve body for another concern. Read More »
This bulletin provides information for when the warning "Fault: Limited warning messages" appears in the instrument cluster with DTC B174404. Read More »
This bulletin provides a software update for instances where the integrated toll module settings can no longer be accessed via the MMI, or the Audi smartphone interface can only be used wired. Read More »
This bulletin provides information for when the message "Audi connect installation: error during installation" is shown in the drop down menu of the MMI. Read More »
This bulletin provides a software update for instances where saved addresses (including the home address), favorites, last destinations, and/or icon and shortcut order are lost sporadically, the MMI screen turns blue, or becomes stuck on ... Read More »
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. Read More »
This bulletin provides the ODIS test plan for when the vehicle doesn't start, or the ignition cannot be turned on due to a drained 12V battery (A). Read More »
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. Read More »
This repair authorization states to contact the Technical Assistance Center in instances where the MIL is on and DTC P04F000 may be stored in the ECM. Read More »
This bulletin states that it takes about 20 seconds after switching the ignition on for the Audi Pre Sense symbol advising that "Audi pre sense not available at the moment" Read More »
This bulletin provides information to address when the Audi connect "User management" screen is greyed out, and the customer cannot complete the key user pairing. OR the SOS emergency button is red or flashing read. Read More »
This bulletin describes the ways in which a variety of Audi vehicles connect to Apple Wireless CarPlay, and the methods to troubleshoot connection concerns. Read More »
This bulletin advises that if the configuration wizard in the MMI displays upon startup, the customer can either complete the configuration or deactivate via settings. Read More »
This bulletin provides instructions for when the anti-theft alarm has gone off for no reason, or did not go off at all. No DTCs are stored. Read More »
This bulletin provides information when there is a message in the instrument cluster: :Instrument cluster: fault. Limited warning messages. Please contact workshop"; B200096. Read More »
This bulletin provides information for when the warning "Fault: Limited warning messages" appears in the instrument cluster with DTC B174404. Read More »
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, ... Read More »
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. Read More »
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 ... Read More »
This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged. Read More »
This bulletin provides information on when the message "Instrument cluster: fault. Limited warning messages. Please contact workshop" DTC B200096 may be stored. Read More »
This bulletin provides instructions for when the check engine warning lamp is illuminated and DTCs U064000 and/or U064100 may be stored sporadically. Read More »
This bulletin provides directions when the SOS malfunction warning is displayed in the instrument cluster accompanied by DTC B200096 or DTCB200000. Read More »
This bulletin provides instructions to update software to address a steering malfunction warning in the instrument cluster with DTC B200FF0 or C12A329. Read More »
The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update. Read More »
The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update. Read More »
A software malfunction in the MMI may cause the steering correction setting for the lane assist to not be available. A solution is currently under development, and the bulletin requests that technicians submit a PSS record for review. Read More »
This bulletin describes a concern where the message "SAFE CP" displays in the virtual cockpit and recommends a software update to resolve this matter. Read More »
This bulletin provides instructions for when faint images appear on the windshield from the production sticker, or an image of the suction cups used to install the windshield in production. Read More »
This bulletin provides information for when one or both rear windows cannot be closed using the one-touch feature and DTC B14874B is stored. Read More »
This bulletin provides information for when the customer reports a wind noise, a water drip, or if the sunroof opening perimeter seal is distorted or not flush with the roof panel. Read More »
This bulletin provides instructions for when a customer reports concerns with the sunroof opening permeter seal is generating noise, dripping water, or if the seal is distorted and/or not flush with the roof panel. Read More »
This bulletin advises that the window washer pump may become blocked due to frozen washer fluid; one more more DTCs may be present: DTCs B126101, B126111, or B126113. Read More »
This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn ... Read More »
This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn ... Read More »
This bulletin provides information for when the luggage compartment lid cannot be closed using the button(s) in the luggage compartment trim. Read More »
This bulletin provides instructions for when the Audi virtual cockpit display remains blank when the driver's door is opened and the driver enters the vehicle. Read More »
This bulletin provides information for when the luggage compartment lid cannot be closed using the button(s) in the luggage compartment trim. Read More »
This bulletin provides instructions for when a vibration is felt in the floor, seat, footwell, pedals or steering wheel while driving at highway speeds from 55 - 80 mph. Read More »
This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs. Read More »
This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs. Read More »
This bulletin contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing when fully turning the wheel. Read More »
This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs. Read More »
This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs. Read More »
This bulletin requests that technicians create a record in the Pending Service Solutions database in instances where there is noise from the backrest of the front seat. Read More »
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. Read More »
This Pending service solutions requests that technicians create a PSS record for instances where a yellow check engine lamp is intermittently displayed upon start with DTC U014000or U110100 is sporadically stored. Read More »
FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: 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. Read More »
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 ... Read More »
A software malfunction in the MMI may cause the steering correction setting for the lane assist to not be available. A solution is currently under development, and the bulletin requests that technicians submit a PSS record for review. Read More »
This bulletin provides information for when the message "Audi Active Lane Assist/Traffic Jam Assist: malfunction" appears, and DTC U112300 is stored in one of two control modules. Read More »
This bulletin provides instructions for when the Audi virtual cockpit display remains blank when the driver's door is opened and the driver enters the vehicle. Read More »
This bulletin states that it takes about 20 seconds after switching the ignition on for the Audi Pre Sense symbol advising that "Audi pre sense not available at the moment" Read More »
This bulletin provides instructions for when a customer states that after an over-the-air navigation map update the navigation system is permanently initializing or the navigation map is incomplete or corrupt and DTC B126CF0 and/or ... Read More »
This bulletin provides a software update for instances where the integrated toll module settings can no longer be accessed via the MMI, or the Audi smartphone interface can only be used wired. Read More »
This bulletin provides information for when the message "Audi connect installation: error during installation" is shown in the drop down menu of the MMI. Read More »
This bulletin provides a software update for instances where saved addresses (including the home address), favorites, last destinations, and/or icon and shortcut order are lost sporadically, the MMI screen turns blue, or becomes stuck on ... Read More »
This bulletin provides information to address when the Audi connect "User management" screen is greyed out, and the customer cannot complete the key user pairing. OR the SOS emergency button is red or flashing read. Read More »
This bulletin describes the ways in which a variety of Audi vehicles connect to Apple Wireless CarPlay, and the methods to troubleshoot connection concerns. Read More »
This bulletin advises that techs should document the specific o-ring seal that is replaced if a refrigerant leak is found and caused by the o-ring seal. Read More »
This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly. Read More »
This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs. Read More »
This bulletin describes a concern where the message "SAFE CP" displays in the virtual cockpit and recommends a software update to resolve this matter. Read More »
This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the star button function assignment is lost on the multifunction steering wheel is lost sporadically. Read More »
This bulletin provides information for when there is a function restriction with event memory entry P071800 - P276800 (symptom 20736 - 20737). Read More »
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. Read More »
This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn ... Read More »
This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn ... Read More »
This bulletin provides instructions for when the Audi connect "User management" option is greyed out, or the SOS emergency button is red or flashing red. Read More »
This bulletin provides instructions for when "Gearbox Malfunction" and/or vehicle does not shift up or down, and/or vehicle is in limp mode home, and/or "reverse gear is unavailable" displayed in the instrument cluster, and/or "You can ... Read More »
This bulletin advises to create a PSS record in instances where information in the MMI such as last destinations, favorites, and user defined buttons are lost. Read More »
The message "SOS Malfunction - Emergency call malfunction, please contact service" may appear erroneously in the presence of DTCs B129B11 and/or DTC B239C11. No repairs are necessary at this time. Read More »
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. Read More »
This bulletin describes the ways in which a variety of Audi vehicles connect to Apple Wireless CarPlay, and the methods to troubleshoot connection concerns. Read More »
This Pending Service Solution (PSS) requests that a record be added to the PSS database in instances where the radio favorites are lost, shortcuts are greyed out on lower screen with MIB3 vehicles. Read More »
This bulletin provides information for when Apple CarPlay pops up or takes over audio without user intervention in vehicles with the Audi Smartphone Interface. Read More »
This bulletin provides a software update for instances where saved addresses (including the home address), favorites, last destinations, and/or icon and shortcut order are lost sporadically, the MMI screen turns blue, or becomes stuck on ... Read More »
This bulletin provides instructions for a software update in cases when "SAFE CP" is displayed in the center of the screen of the Audi virtual cockpit, the gauges function normally, and DTC B200FF0 may be stored. Read More »
This bulletin advises that the MMI screen may freeze, or go blank and then restart when a special character like a symbol or emoticon is used in the name field for contact(s). Read More »
This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs. Read More »
This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs. Read More »
This repair authorization requests that technicians contact the Technical Assistance Center before proceeding when the MIL is illuminated, and DTC P04F000 is stored. Read More »
This bulletin describes the registering and pairing process required to utilize the SIM card to activate 3rd generation Audi connect services. Read More »
This informational bulletin contains instructions for when the message "Audi pre sense currently restricted. See owner's manual" is displayed in the instrument cluster without DTCs. Read More »
This bulletin advises that the message "CNG inspection" or "CNG mode active" with no relevant DTCs is currently being investigated. Techs should create a PSS record when this concern is reported by a customer. Read More »
This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly. Read More »
This bulletin provides information when whistling noises are heard from the turbocharger at 1500-2200 rpm and approximately 70% load on 4 cyl 2.0 TFSI. Read More »
This bulletin provides information for when there is a function restriction with event memory entry P071800 - P276800 (symptom 20736 - 20737). Read More »
This Pending service solutions requests that technicians create a PSS record for instances where a yellow check engine lamp is intermittently displayed upon start with DTC U014000or U110100 is sporadically stored. Read More »
