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Service bulletins for the 2016 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.

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

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
EmailAUTDI2L-3L2020-10-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Reminders - TDI Approved Emissions Modifications, Emissions Compliant Repairs, corrections and extended warranty / warranty policy and loaner vehicle overview
A1720072060033_12020-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin contains repair instructions for when there are noises in the engine compartment with DTC P052E00.
AWA 19-032019-06-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin explains the warranty extension for the crankcase ventilation valve on certain 3.0L and 4.0L vehicles.
AWA 19-022019-05-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. This bulletin clarifies how to claim AdBlue on warranty claims.
AWC 18-142019-02-25. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This communication notifies dealers that AWC 17-34 was modified to remove 2.0L vehicles and apply to 3.0L vehicles only.
AWC 17-342019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT. This communication instructs dealers to contact the Technical Assistance Center if they encounter a MIL on before performing the TDI emissions modification. - REVISED 12/17/18 to apply to 3.0L models and to remove 2.0L models.
A011894 20330012019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
Campaign Parts B2018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 3.0L TDI Emissions Recalls 23R8 Part supersession
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.
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.
Email-Audi AEM T2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING. Important Information Regarding Approved Emissions Modification (TDI) Recall Campaigns & the California Air Resources Board / Department of Motor Vehicle (DMV) Vehicle Registration Requirement
Circular - Emiss2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 3.0 TDI vehicles were equipped with undisclosed Auxiliary Emission Control Devices which are not permitted by emissions regulations. Removed California DMV Tie-in Requirements
Email-2.0L TDI a2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 2.0L TDI and 3.0L TDI Extended Emissions Warranty On-Board Diagnostic (OBD) System Coverage Questions
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.
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.
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.
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.
Circular-Emissio2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 3.0 TDI vehicles were equipped with undisclosed Auxiliary Emission Control Devices which are not permitted by emissions regulations. Revised legal approved copy.
E-mail 3.0L TDI2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. E-mail - 3.0L TDI Gen 2 Emissions Compliant Repair (ECR) Approval
A231745 2049856-2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin contain repair instructions for the TDI emission modification.
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.
A171783 2040644-2018-02-05. 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.
A261629 2045720-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin provides information regarding the replacement of the front muffler if vibrations are noticed in the seat or center arm rest.

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