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Service bulletins for the 2011 Audi A3

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
Dealer 26N12019-12-07. Service bulletin. ENGINE; EQUIPMENT. Due to a parts catalog error, an incorrect emissions related component may have been installed on some vehicles during a past service repair visit. Dealers will inspect and, if needed, replace the component as a proactive measure to ensure continued emissions compliance.
AWA 19-022019-05-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. This bulletin clarifies how to claim AdBlue on warranty claims.
AWA 18-15-2019022019-04-15. Service bulletin. ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement. It was revised again on 2/4/19 to include claiming information for entire engine replacement.
AWA 18-15-2019022019-04-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement. It was revised again on 2/4/19 to include claiming information for entire engine replacement.
AWA 18-15-2019022019-04-01. Service bulletin. EQUIPMENT; ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement. It was revised again on 2/4/19 to include claiming information for entire engine replacement.
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.
AWA 18-15-2018112019-02-19. Service bulletin. ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement.
23W1 rev 08282012019-02-19. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. Inlet Air Box Housing Snow Flap Replacement & Oxygen Sensor Inspection/Replacement - The snow flap in the inlet air box housing may remain partially to fully open. Should this occur, excess warm air could enter the air intake through the snow flap inlet. The oxygen sensor will be checked during this service and, if measured degradation tolerances are met, the sensor will be replaced. Revision Summary Updated work procedure.
23U7 rev 09122012019-02-19. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT. 2.0L TDI Engine (GEN 1) Emissions Modification ? Customer Only (Retail Sold) USA ONLY - The Environmental Protection Agency and California Air Resources Board have determined that Audi A3 vehicles equipped with a 2.0L 4-cylinder TDI engine do not comply with applicable emissions regulations. The emissions control systems on the vehicles will not control emissions under off-cycle conditions as effectively as during the federal test procedure. The extent of the emissions increase under off-cycle conditions depends upon how the vehicles are driven. Updated work instructions.
AWA 18-152018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles.
Email-Audi AEM T2018-09-24. Service bulletin. 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
SM 12-2017 VWMEX2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This special notice is to inform dealers to return all part numbers listed in the document. Only superseded part numbers to be ordered going forward.
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
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.
Email - 2.0L TDI2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. 2.0L TDI Gen 1 Emissions Modifications Approved.
Email-TDI Virtua2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. E-mail - TDI Virtual Closing Training Reminder
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.
19L2 6Y2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. The coolant pump may develop a small leak over time. Inspect and, if necessary, replace the coolant pump.
Data - 19L2 6Y2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. This document contains information on the upcoming service action 19L2 for the coolant pump.
19L2 6Y 08-05-152018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; VISIBILITY. This document contians the dealer letter that provides information on the 19L2 service action that wil be turned back on for Elsa visibility on or about August 06, 2015. Customer notification will begin on or about August 31, 2015.
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.
19L2 6Y 08-06-152018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This document contains information on the Service Action Code: 19L2. The coolant pump may develop a small leak over time.
A171782 2010043-2018-02-05. Service bulletin. ENGINE. This informational bulletin contains all the the Audi Oil Quality Standards that should be used when doing an oil change.
23U7 - Circular2018-02-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT:OTHER:LABELS. 2.0L TDI Engine (GEN 1) Emissions Modification ? Customer Only (Retail Sold) USA ONLY - The Environmental Protection Agency and California Air Resources Board have determined that Audi A3 vehicles equipped with a 2.0L 4-cylinder TDI engine do not comply with applicable emissions regulations. The emissions control systems on the vehicles will not control emissions under off-cycle conditions as effectively as during the federal test procedure. The extent of the emissions increase under off-cycle conditions depends upon how the vehicles are driven.

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