Technical Service Bulletins (TSBs) for the 2018 A4 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 »
This bulletin contains repair instructions for repositioning the intermediate steering shaft when there is squeaking noises from the steering column. 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 contains repair instructions for repositioning the intermediate steering shaft when there is squeaking noises from the steering column. 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 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. Read More »
This bulletin includes directions for updating the MIB2 software to address an issue where the programmable steering wheel button, which has been set to "Drive Select" loses its programming. 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 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 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 contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing when fully turning the wheel. 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 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 informational contains an explanation for when the customer hears creaking noises when braking at almost standstill (crawling when pulling away or briefly before standstill). 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 contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. Read More »
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. Read More »
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. Read More »
This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. Read More »
This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. 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 information for when there is oil found in the engine compartment, front end, and around the filler cap, and a smell is coming from the oil compartment. Read More »
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. Read More »
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. Read More »
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. Read More »
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. 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 »
POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT
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. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. 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 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 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 contains a software update to address one or more various malfunctions of the motor for the window regulator with DTCs; B148713, B14874B , B148754 and/or B148701. Read More »
This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604. Read More »
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 ... Read More »
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. Read More »
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 ... Read More »
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. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
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. Read More »
This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. Read More »
This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. Read More »
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 ... Read More »
This bulletin contains repair instructions for DTC P201500 which may or may not have a MIL on. 2018-2019 A4 allroad, 2018-2020 A5 Sportback 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 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 contains instructions for when DTC U030000 appears and ??A???A???A?All Wheel Drive Malfunction Message??A???A???A? is displayed in the instrument cluster. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
This bulletin contains instructions for when DTC U030000 appears and 'All Wheel Drive Malfunction Message' is displayed in the instrument cluster. Read More »
ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
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. Read More »
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. Read More »
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 ... Read More »
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. Read More »
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 Read More »
This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. Read More »
This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'. Read More »
This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'. Read More »
This information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again. 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 contains a software update to address one or more various malfunctions of the motor for the window regulator with DTCs; B148713, B14874B , B148754 and/or B148701. Read More »
This bulletin provides directions when the customer describes a problem with the HVAC system DTCs B11AF07 and/or B109207 could be logged as sporadic or static. Read More »
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. 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 customer hears a rattling noise coming from the rear parcel shelf or rear subwoofer grille when playing music. Read More »
This information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again. Read More »
This bulletin contains instructions for when there is a creaking noise in the floor area while strongly braking or steering where the vehicle's body is twisted. Read More »
This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'. Read More »
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. 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 contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing when fully turning the wheel. Read More »
This bulletin provides information regarding vibrations or movement that are felt in the wheel. 2015-2020 A3 Cabriolet, 2016-2018 A3 Sportback, 2008-2009 S4 Cabriolet, 2008 and 2010 RS4 Cabriolet, 2018-2020 A5 Sportback, 2010-2012 and ... 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 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 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 Read More »
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 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 »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. 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 »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604. Read More »
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. 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 contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage). Read More »
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). Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. 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 contains a software update for when the MMI screens go blank and the system reboots, it may have stored DTC U10CF00 and/or B13B901. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
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. Read More »
This informational bulletin contains instructions for when the message "Audi pre sense currently restricted. See owners manual" is displayed in the instrument cluster without DTCs. 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 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 ... Read More »
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 ... Read More »
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 ... Read More »
This bulletin provides instructions to insulate the rear parcel shelf or rear subwoofer grille with foam strips to eliminate a rattle noise. 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 »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
This bulletin includes directions for updating the MIB2 software to address an issue where the programmable steering wheel button, which has been set to "Drive Select" loses its programming. Read More »
This bulletin describes the procedure to update the MIB2 software for a reported concern with the Audi Smartphone Interface being unavailable after reversing Read More »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'. Read More »
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 ... Read More »
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. Read More »
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. Read More »
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. 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 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 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 ... Read More »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
This bulletin contains a software update that addresses mutiple concerns (CarPlay display blank, Andriod Auto screen not filled, MMI reboots, Subwoofer setting missing, etc.). 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 information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again. Read More »
This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. Read More »
This bulletin contains repair instructions for DTC P201500 which may or may not have a MIL on. 2018-2019 A4 allroad, 2018-2020 A5 Sportback 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 »
AT&T has announced its plan to discontinue its 3G network in the U.S. starting in February 2022. This will impact the Audi connect services in certain 2017-2019 model year Audi vehicles. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. 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 contains a software update for when the MMI screens go blank and the system reboots, it may have stored DTC U10CF00 and/or B13B901. Read More »
This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. Read More »
This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207. 2017-2019 A4 allroad, 2018-2019 A5 Sportback Read More »
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 ... Read More »
This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207. 2017-2019 A4 allroad, 2018-2019 A5 Sportback Read More »
This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207. Read More »
This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207. 2017-2019 A4 allroad, 2018-2019 A5 Sportback Read More »
This bulletin contains repair instructions for when the HVAC system is having issues with air flow and temperature commands with DTCs B11AF07 and B109207. 2017-2019 A4 allroad, 2018-2019 A5 Sportback Read More »
This bulletin provides information when there are scratches, or a coating on the cover of the instrument cluster, or particles in the housing. Read More »
This bulletin contains repair instructions for noises when in reverse or vibrations/humming/droning or rubbing whrn fully turning the wheel. Read More »
This bulletin contains instructions for when the MMI shows the message 'Read error occurred when accessing the navigation data' after initialization and reboots constantly. Read More »
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 ... Read More »
