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Service bulletins for the 2013 Audi A4 allroad

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

893 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
A201443 2035073-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 20 number 14-41 dated October 9, 2014. MIL on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A001470 2039206-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. High quality media files (video and sound) are now integrated into technical service bulletins on a case-by-case basis. Media files can now be viewed on any smartphone or tablet. Audi of America has started to host its TSB videos outside of ElsaPro. Doing so provides higher-quality videos, more reliable access to the videos, and the ability to view the videos on different devices.
A911469 2038824-2017-12-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES. The following message appears on the MMI display: ?Device or cable type not supported?. The ?Device or cable type not supported? message may be displayed when the wrong AMI cable type is used. See the Service section of this bulletin for an overview of the AMI cables that support iOS devices.
A211421 2039006-2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 21 number 14-20 dated November 17, 2014. MIL on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
A211420 2039006-2017-12-05. Service bulletin. ENGINE. MIL on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
A191453 2039018-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. A small amount of dry or crusted coolant is seen on the coolant pump housing. The coolant level warning is not on. A minor coolant leak is possible during the break-in phase of the coolant seal on the coolant pump. The dry coolant marks are normal.
A171453 2038129-2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 14-50 dated August 15, 2014. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
A011403 2033223-2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 01 number 13-29 dated September 16, 2013. The engine warning light is on after engine replacement. The engine is not running roughly. However, the engine control module, J623 (address word 01), is storing one or more engine misfire fault codes. The fault codes occur at light load, between 8% and 14% accelerator pedal position. The programmed values for the misfiring recognition are not automatically reset by deleting the memory once.
A011491 2028842-2017-12-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Customer vehicle is fitted with unauthorized ECM tuning. All systems on Audi vehicles are engineered to work together using the factory calibrations, which have been extensively tested and validated before the vehicle is released for sale. The Audi warranty coverage is based on the results of developing the vehicle under the factory calibration. If a vehicle is equipped with unauthorized hardware or software tuning, it can cause stress on vehicle components outside of intended design limits, and can cause damage and additional wear. Subsequently, factory powertrain warranty coverage is reduced or voided.
A201437 2038276-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. DTC P045600 is stored in the engine control module (ECM), J623 (address word 01). Note that this repair authorization applies only to a specific list of VINs. If this repair authorization does not appear in ELSA when your VIN is entered, it does not apply.
A371447 2029027-2017-12-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Supersedes Technical Service Bulletin Group 37 number 14-42 dated August 1, 2014. Customer may report transmission warning light is illuminated. In some cases, the vehicle will not move after being started and placed into gear. After key cycle, the vehicle drives without restriction. DTCs are stored in the transmission control module (TCM).
A641436 2020552-2017-12-05. Service bulletin. VISIBILITY:WINDSHIELD. Windshield is streaked, has a snakeskin appearance, or its surface feels rough. Residue from industrial fallout as well as normal road dirt and grime may accumulate on windshield.
A911458 2035919-2017-12-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 91 number 14-53 dated July 24, 2014. MMI 3G+ GPS location is inaccurate (MY13, MY14, & MY15).
A911459 2036607-2017-12-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-42 dated April 30, 2014. The GPS location or vehicle direction indicated on the navigation map does not match the actual vehicle?s location or actual direction of travel. The condition can happen sporadically or consistently. The condition does not happen during or immediately following the initial PDI inspection (once the vehicle has been taken out of transport mode). It is normal for the satellite reception to be 0 immediately after taking the vehicle out of transport mode. With the ignition off, the vehicle must sit in open sky view for 10-15 minutes before a GPS fix can be obtained. The vehicle is a Model Year 2013.
A921409 2038151-2017-12-05. Service bulletin. VISIBILITY:WINDSHIELD. Supersedes Technical Service Bulletin Group 92 number 14-08 dated August 19, 2014. The washer solvent level warning is on in the DIS, but the washer solvent level is correct. There is no functional restriction in the windshield washer system. The sensitivity of the washer solvent level sensor (G33) can be affected by the type, concentration, and the presence of additives in the washer solvent currently in the tank. The operation of the level sensor relies on the composition of the solvent to provide an accurate message on the solvent level. Incorrect concentration and the presence of additives can contaminate the sensor and reduce its sensitivity.
A911463 2028190-2017-12-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 91 number 13-08 dated September 20, 2013. The customer would like to add a different navigation map database for countries outside of the USA or Canada. The customer would like to change the MMI system language to a different language that is not already supported by MMI. When a song is being played and the track information for that song contains foreign language characters, the driver information system (DIS) in the cluster correctly displays the characters, but the MMI display does not.
A871458 2035582-2017-12-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 13-46 dated October 21, 2013. The A/C Compressor has been diagnosed as faulty and will be replaced under warranty. When performing replacement of an A/C Compressor under warranty, the amount of refrigerant and oil recovered must be documented.
A871457 2038452-2017-12-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Customer may report poor A/C performance or that A/C is inoperative. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. In an effort to gain information on the DTC codes for the vehicles listed above, we are asking that you contact the Audi Technical Assistance Center (TAC) before replacing any parts. This will assist us in diagnosing any potential issues with the condition noted above.
A661443 2038652-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Supersedes Technical Service Bulletin Group 66 number 14-42 dated October 9, 2014. The paint is flaking off of the radiator grille or front license plate holder. The surfaces of these components were too smooth (due to high-gloss polishing tools), which led to weak adhesion of the paint during production. Only components with color index T94 are affected.
A661442 2038652-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. The paint is flaking off of the radiator grille or front license plate holder. The surfaces of these components were too smooth (due to high-gloss polishing tools), which led to weak adhesion of the paint during production. Only components with color index T94 are affected.
A571404 2027368-2017-12-05. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH. Supersedes Technical Service Bulletin Group 57 number 13-86 dated March 20, 2013. The exterior door handle touch sensors (Audi advanced key) are inoperative on one or several doors. The key blade can be used mechanically (driver door or trunk) or remote electrically (key remote buttons) to unlock and lock the vehicle.
A481463 2028220-2017-12-05. Service bulletin. STEERING. Supersedes Technical Service Bulletin Group 48 number 13-54 dated September 13, 2013. Steering wheel appearance damaged due to external impact (e.g., contact with finger nails, zippers, watches, rings, etc.). External impact (e.g., contact with finger nails, zippers, watches, rings etc.) can cause damage to the appearance of the steering wheel. This type of damage is not warrantable, as numerous investigations have shown that there is no fault in material or workmanship.
A441455 2010334-2017-12-05. Service bulletin. WHEELS. Supersedes Technical Service Bulletin Group 44 number 13-46 dated December 9, 2013. Wheel bolt requires torque adjustment.
A401443 2035854-2017-12-05. Service bulletin. SUSPENSION. Supersedes Technical Service Bulletin Group 40 number 14-42 dated July 8, 2014. A rattling or knocking noise is heard when the car is driven over bumps or uneven road surfaces. This noise is heard after the car has been driven for a while and is warmed up, and when the temperature outside is warm. This condition can be duplicated if the brakes are applied while the car is being driven over bumpy roads. This condition is a comfort concern. Vehicle handling is not affected. This bulletin applies only to vehicles equipped with 75mm hydro-bushings. This bulletin does not apply to vehicles equipped with 65mm bushings. High ambient temperatures at the hydraulic guide links cause the noise.
A371449 2037127-2017-12-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. Supersedes Technical Service Bulletin Group 37 number 14-24 dated May 1, 2014. A jerky accelerator response is felt when the vehicle is pulled away from a stop in reverse. Incorrect calibration of clutch program.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.