Service bulletins for the 2015 Audi A6
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.
1115 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Engine are shown. Show all
| 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. |
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| A011492 2033224- | 2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 01 number 13-28 dated September 12, 2013. If a model year 2015 Q5 TDI, A6 TDI, A7 TDI, or A8L TDI clean diesel (engine code CPNA or CPNB) requires diagnosis or repair of the engine, diesel fuel delivery, exhaust after-treatment (SCR/AdBlue and emissions) systems, or transmission, a Repair Authorization is necessary prior to repair. This also applies to any messages related to AdBlue shown in the DIS. These procedures are mandatory until further notice. Routine maintenance, PDI, and repair of other systems do not require prior authorization or a TAC ticket. Any repairs related to the engine, diesel fuel delivery, exhaust after-treatment (SCR/AdBlue or emissions) systems, or transmission completed without Repair Authorization via a Technical Assistance Center (TAC) contact will not be reimbursed. |
| A011498 2038166- | 2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. The engine warning light is on after engine replacement. The engine is not running roughly. However, fault codes are stored in the engine control module (ECM). The fault codes occur at light load, between 8% and 14% accelerator pedal position. The programmed values for the misfire adaption are not automatically reset when the memory is deleted. The adaption must be reset after the engine is installed. |
| A011386 2033630- | 2017-11-17. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. MIL on. Rough idle. DTCs are stored in the Engine Control Module (ECM), J623 (address word 01). Engine may have reduced performance without significant loss of power or stalling. Because there are a number of different misfire faults (unrelated to ignition coil operation) that could cause the MIL to illuminate, proper Guided Fault Finding (GFF) misfire diagnosis must be followed before any ignition coils are replaced. |
| A191562 2025303- | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 15-61 dated July 7, 2015. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service. |
| A171565 2038129- | 2017-11-17. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 15-63 dated June 2, 2015. 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. |
| Dealer Letter - | 2017-11-17. Service bulletin. ENGINE. This is an update to the November 3, 2015 communication where Volkswagen Group of America, Inc. issued a stop sale order for all 2013-2016 model year Audi vehicles equipped with a Gen II 3.0 liter V6 TDI engine. This was in response the notice received from the U.S. Environmental Protection Agency and California Air Resources Board of an investigation related to certain emissions compliance matters impacting certain 3.0 liter V6 TDI engine vehicles. Audi continues to actively cooperate with the relevant authorities to resolve the November 2, 2015 EPA notice of violation. |
| A001463 2033576- | 2017-11-08. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Supersedes Technical Service Bulletin Group 00 number 13-49 dated May 14, 2013. Although the correct amount of oil was added to the engine during an oil change service, a check of the oil level shows that the oil level is not okay. When an unapproved aftermarket speed-filling device is used to add oil to the engine, the increased oil flow rate may force oil into the intake manifold or combustion chamber, creating the potential for engine damage. |
| A191450 2025303- | 2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 13-41 dated June 20, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service. |
| A011463 2033630- | 2017-11-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-86 dated April 15, 2013. The MIL is on. There is a rough idle. DTCs are stored in the ECM. Engine may have reduced performance without significant loss of power or stalling. Because there are a number of different misfire faults (unrelated to ignition coil operation) that could cause the MIL to illuminate, proper Guided Fault Finding (GFF) misfire diagnosis must be followed before any ignition coils are replaced. |
| A011462 2036169- | 2017-11-08. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 01 number 14-59 dated January 21, 2014. The MIL is on. DTC may be stored in the ECM. Drivability concerns such as hard starting/no starting are present. Outside temperature is sub-freezing. In tank, fuel pump may be making a straining noise. |
| A011459 2036169- | 2017-11-08. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 01 number 14-55 dated January 8, 2014. The MIL is on. DTC P0087 may be stored in the ECM. Drivability concerns such as hard starting/no starting are present. Outside temperature is sub-freezing. In tank, fuel pump may be making a straining noise. |
| A011455 2036169- | 2017-11-08. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. The MIL is on. DTC P0087 may be stored in the ECM. Drivability concerns such as hard starting/no starting are present. Outside temperature is sub-freezing. In tank, fuel pump may be making a straining noise. Diesel fuel requires additive blending or ?winterization? to be useable at low temperatures. At temperatures below 20° F (-7° C), No. 2 Diesel with insufficient winterization blending may lose its fluidity due to wax separation. This may clog the fuel filter or in-tank filter, preventing the engine from operating properly. No. 2 Diesel is blended by refineries to various levels of winterization (minimum useable temperature) based on month, geographical location, and the 10th percentile minimum ambient air temperature for the given region. Although rare, during sudden periods of extreme low temperatures (record lows), fuel stations may not be adequately prepared with No. 2 Diesel fuel with sufficient winterization to resist wax formation or ?gelling?. |
| Executive Servic | 2017-10-27. Service bulletin. SERVICE BRAKES, HYDRAULIC:FLUID; POWER TRAIN; ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service. |
| Update Bulletin | 2017-10-27. Service bulletin. ENGINE AND ENGINE COOLING. On Audi A6, A7 and A8 vehicles with 3.0L TFSI engines manufactured within a specific period, the ambient air temperature sensor may be incorrectly diagnosed in the engine control unit. This Update is in effect until removed. Procedure is valid only for vehicles that show the 24BN code in the Elsa Campaign/Action Information screen on the day of repair. Vehicle must be within the Federal Emissions Warranty. Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin. Procedure must be performed on applicable vehicles in dealer inventory prior to sale. On Audi A6, A7 and A8 vehicles with 3.0L TFSI engines manufactured within a specific period, the ambient air temperature sensor may be incorrectly diagnosed in the engine control unit. |
| A171563 2038129- | 2017-10-27. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 14-53 dated November 7, 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. |
| A011524 2040491- | 2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING. The MIL is on. "Coolant System: Fault Turn Off Engine" and the coolant symbol appears in the information panel. DTC P1B1C00 is stored in the ECM. |
| A191555 2039891- | 2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Heating performance is low. Air bubble noises are heard from coolant and/or heat exchanger area. The check valve in the breather line can come loose. As a result, air may get into the coolant system. Modified parts in production starting with production date 2/5/2015. |
| 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. |
| A011507 2028344- | 2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-69 dated February 14, 2013. Noises and inconsistent engine operation after cold start during the catalyst heating phase. The customer may misinterpret these symptoms as engine misfiring. This bulletin applies only to non-diesel engines. |
| A191557 2040043- | 2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Customer states that engine overheats. No MIL. No related DTCs are stored. 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 overheat condition 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. No changes to production have been made, as no issue has been identified. |
| 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. |
| A191558 2036852- | 2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. Cooling fans stay on after engine is turned off. The cooling fans may operate for up to 10 minutes after the engine is turned off. This function is mapped to specific driving patterns and vehicle operating modes (for example, DPF regeneration). This is normal operation, and no parts should be replaced. |
| A171557 2010043- | 2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 17 number 13-35 dated January 9, 2013. This bulletin lists engine oils that meet Audi oil quality standards (VW 501 01, 502 00, 505 00, 505 01, and 504 00/507 00). |
| A101511 2018288- | 2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 10 number 13-10 dated September 5, 2013. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If the engine experienced a serious mechanical problem, it is possible that small pieces of metal debris resulting from the mechanical problem may have become deposited in the intake manifold, air intake hoses, exhaust manifolds, exhaust down-pipes, turbocharger, supercharger, and/or intercooler. If these metal debris pieces are not removed prior to the installation and operation of the replacement engine, they could be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious engine damage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.