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Service bulletins for the 2015 Audi A8

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.

1106 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
A301519 2019850-2018-02-05. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN. Supersedes Technical Service Bulletin Group 30 number 11-10 dated December 2, 2011. Clutch is not operating properly. Clutch has a burnt smell. Clutch pedal does not fully return to starting position. Incorrect shifting, the revolutions of clutch plate and engine input shaft differ too much, excessive slipping of the clutch, and when the clutch is pressed and an incorrect lower gear is selected, can result in clutch damage.
A301722 2019850-2018-02-05. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. This technical service bulletin provides guidelines for diagnosing the clutch plate.
Update Bulletin2017-12-05. Service bulletin. POWER TRAIN. On Audi A8 vehicles with 4.0 ltr engines the shifting operation of the gearbox may feel uncomfortable or a slight engine hesitation may be felt. This Update is in effect until removed.
A371450 2038447-2017-12-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Supersedes Technical Service Bulletin Group 37 number 14-43 dated September 26, 2014. The shifting operation of the gearbox may feel uncomfortable when the vehicle is coming to a stop, or slight engine hesitation may be felt when taking off from a stop. Incorrect calibration of the engine control module (ECM) and transmission control module (TCM) software.
A371448 2030007-2017-12-05. Service bulletin. POWER TRAIN. Supersedes Technical Service Bulletin Group 37 number 12-65 dated September 25, 2012. Customer may report harsh shift concerns, but the customer is unable to determine the shift point because there is no gear indicator in the cluster. The concern can be reproduced. No faults are stored. TAC must be contacted before any repairs are attempted. Specific information about the concern must be gathered (as described in the Service portion of this bulletin) before TAC is contacted.
A661330 2030471-2017-11-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Supersedes Technical Service Bulletin Group 66 number 12-24 dated August 24, 2012. Customer may report the license plate attachment screws do not install properly. The license plate brackets are designed to be used with the appropriate length screw installed by hand with a screwdriver. Damaged warranty parts have been returned to Audi of America with evidence of excessive torque used when installing the screw and/or excessive screw length.
A371430 2003658-2017-11-08. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE). Supersedes Technical Service Bulletin Group 37 number 13-07 dated May 29, 2013. Customer states that the engine returns to idle speed of approximately 1,400 RPM although the accelerator is depressed, and/or the vehicle hesitates (lacks power on take-off). No DTCs are stored. This condition may be caused when the brake pedal and the accelerator pedal are depressed simultaneously. Drivers who drive with their left foot resting on the brake pedal are prone to experience this condition.
Executive Servic2017-10-27. Service bulletin. ENGINE; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; SERVICE BRAKES, HYDRAULIC:FLUID; POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service.
A011527 2041093-2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). DTC P164D00 is stored in the engine control module. The red oil pressure warning light may be on. Rubber oil drain plug within the oil filter housing is out of position.
A371555 2039650-2017-10-25. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. There is an oil leak from underneath the vehicle. The leak may appear to be from the transmission oil pan gasket. Although the leak may appear to be from the transmission oil pan gasket, there are multiple possible sources for the leak. The leak must be diagnosed to determine the actual location before any repairs are attempted.
A261525 2036070-2017-10-25. Service bulletin. POWER TRAIN. Supersedes Technical Service Bulletin Group 26 number 14-21 dated February 3, 2014. Various noises, such as humming, vibration, and/or rattling are heard coming from under the vehicle or from near the center console area. The noises may appear when the vehicle is driven at highway speeds, during hard acceleration when RPMs are high, during deceleration from 40 mph, or during acceleration from a stop.
A011508 2030580-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Supersedes Technical Service Bulletin Group 01 number 15-06 dated January 16, 2015. The customer complains that the vehicle sporadically cannot be started. The yellow gearbox warning light may be illuminated. DTC P157000 and/or DTC P170100 present in the ECM and the transmission control module, respectively.
A271525 2036392-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Supersedes Technical Service Bulletin Group 27 number 14-23 dated April 24, 2014. Vibrations are felt at 1000 rpm and 3000 rpm. DTCs may be stored in the subframe mount control module. Optimized J931 control module software.
A151526 2039995-2017-10-25. Service bulletin. ENGINE; POWER TRAIN. Rattling noises are heard from the timing chain drive for about 1-3 seconds after the first engine start of the day. The noises are caused by one of the upper chain tensioners. The noises do not lead to damage. Improved chain tensioner.
A391515 2028902-2017-10-21. Service bulletin. POWER TRAIN. Supersedes Technical Service Bulletin Group 39 number 14-14 dated May 5, 2014. A squealing, howling, or whistling noise may be heard coming from under the vehicle. The condition is typically noticed when the vehicle is cold (normally below freezing) and is moving at speeds of 5 - 60 mph. The noise is from the intermediate bearing of the propeller shaft.
A011521 2040508-2017-10-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. The MIL is on. DTC P046100 is stored in the ECM. DTC P046100 can be caused by miscalculations within the ECM software.
A371668203000752017-03-10. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY. THIS BULLETIN PROVIDE INSTRUCTIONS FOR WHEN THERE ARE HARSH GEAR SHIFTS BUT THERE IS NO FAULTS STORED AND YOU CAN DUPLICATE THE CONCERN.

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