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Service bulletins for the 2013 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.

1506 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
ATU Powertrain2018-12-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; EQUIPMENT. 4.0T Camshaft diagnosis
A011885 2046611-2018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This bulletin provides repair information for when DTC P209600 and DTC P209800 appear and the reference duct is contaminated.
AWC-18-092018-10-15. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This communication provides instructions for documenting the fuel refill in the INFORM tool.
A2118292018-09-24. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
AWA-18-01 2018062018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin explains the extended emissions warranty for TDI vehicles modified under Campaign 23V4. The parts list was updated to include service numbers.
A011875 2035368-2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains repair instructions for when a MIL is on with DTC P203B00.
A211829 2044640-2018-09-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
A011873 2046724-2018-09-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This bulletin contains a software update to address occasional stalling or running erratically without a DTC. Occasional "System too rich" entries.
A011868 2048391-2018-09-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This bulletin contains a software update to correct a MIL on with DTC P033300, P132200, P132400, and/or P032800.
AWC-18-052018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This communication asks dealers to contact Audi Warranty if they have any questions about the extended warranty coverage for 2.0L and 3.0L TDI vehicles.
ATU_Engine_Janua2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. 4.0T Locating cause for coolant loss, known causes, corrections and TSB review
A171893 2040644_2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A011857 2042071_2018-05-21. Service bulletin. EQUIPMENT; ENGINE. This bulletin contains repair instructions for when the MIL is on and one of many DTCs is stored in relation to dylinder on demand function.
A211727 20446402018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. This bulletin contains detailed instructions and a worksheet for determining the damage on a turbocharger.
A171789 20406442018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A011747 20484112018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when a 4.0 liter engine has a MIL on, the engine may be limited to 4,000rpm, and there are DTCs about the intake manifold flap adjustment.
A011746 20380452018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. This technical service bulletin provides instructions for replacing the coolant thermostat with a new part number to resolve a stored DTC.
Email-AdBlue par2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This email clarifies which part numbers dealers can use for refilling AdBlue.
A011748 2040403-2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This technical service bulletin instructs the reader to replace either a combi valve or vacuum solenoid valve depending on the circumstances under which DTC P244000 and/or P244200 were stored.
A171566 2040644-2018-03-13. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 17 number 15-64 dated June 3, 2015. A metallic whistling or grinding sound is heard from the engine compartment when the vehicle is at idle speed. The sound usually only occurs when the engine is warm. The MIL is sporadically on. DTCs are stored in the ECM. A leak in the crankcase breather module (pressure regulating valve) can cause this condition.
A011685 2041120-2018-03-13. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin provides information regarding a software update for DTC P042000 and/or P043000.
A871679 2041717-2018-03-13. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin applies to any repair that requires replacement of the air conditioning compressor and details how to run a ODIS GFF test plan.
A261630 2045720-2018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This bulletin provides information regarding the replacement of the front muffler if vibrations are noticed in the seat or center arm rest.
A0115292041097-12018-02-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. The MIL is on. Customer may report that the engine runs irregularly. DTCs are stored in the ECM. On the camshaft adjustment valve, the filter element can loosen. There is no consequential damage from loosened particles in the oil circuit. They are gathered by the oil filter.
A1915612025303-52018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 14-50 dated June 20, 2014. 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.

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