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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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Bulletins, newest first
A911743 2042097-2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains resource information for when the traffic feature is inoperative in the MMI navigation.
2.0L TDI GEN 1 F2018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 2.0L TDI (GEN 1) FAQs
AWA 17-102018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin explains the extended emissions warranty limited warranty extension for Model Year 2010 - 2013 2.0L TDI vehicles.
AWA 17-112018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin explains how to do warranty coding for the "delight elements" of the extended emissions warranty for model year 2010 - 2013 2.0L TDI vehicles.
AWC 17-262018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This communication instructs dealers to contact the Technical Assistance Center if they encounter any issues while performing the update for Campaign 23U7.
23U7 - Circular2018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. Criteria I.D. in Saga claiming instructions updated.
23W1 - Circular2018-02-05. Service bulletin. EQUIPMENT. 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.
SM 52-20172018-02-05. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EQUIPMENT. This special notice is to inform dealers to return all tail lamps with the part number listed that are below generation 14s.
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.
23W1 - Dealer Le2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 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.
A231742 2048573-2018-02-05. Service bulletin. ENGINE. This bulletin is a notification of the Campaign 23U7 for TDI Generation I A3 2.0L Emissions Modification.
A401770 2018194-2018-02-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
A941791 2012749-2018-02-05. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains technical information for when there is condensation visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, and/or third brake light lens.
69N1 69N2 and 692018-02-05. Service bulletin. AIR BAGS. This communication informs the dealers of details on the Takata parts allocation.
A911736 2024323-2018-02-05. Service bulletin. FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
Dealer Letter -2018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Effective immediately, the work procedure for Service Action 20U3 has been revised to include an owner supplement that must be provided to customers upon completion of this repair. An allocation of supplements was sent to your dealership in early September. If you need additional copies, please see the revised campaign circular for ordering instructions. An updated campaign circular has been posted to ServiceNet and will be visible in ElsaWeb shortly. Please ensure that everyone in your dealership with campaign-related responsibilities has been made aware of this updated information.
Email - 2.0L and2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 2.0L & 3.0L TDI Settlement Updates
SM E-20162018-01-08. Service bulletin. ELECTRICAL SYSTEM. This special notice is to inform dealers to return all engine control modules listed in the document.
A871447 2010146-2017-12-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 12-27 dated April 24, 2012. There is an unpleasant, musty odor coming from the heating and ventilation system. The odor usually occurs when the vehicle has been sitting unused for five hours or more. The odor usually occurs within 20 to 60 seconds after the vehicle is started. Condensation, which is a normal condition in all A/C systems, can cause a musty odor. If the odor is noticeable in the vehicle when the engine is not turned on, the cause may be mold and mildew in the passenger compartment, and not be related to the A/C system. All other possible sources of the odor must be investigated before this bulletin can be performed.
A741418 2036572-2017-12-14. Service bulletin. SEATS. The panel on the back of the front seat is warped or dented. The headrest on the rear seatback may also be damaged. The damage is caused when the headrest of the rear seat backrest comes in contact with the back of the front seat. This occurs when the rear seat is folded down with the headrests installed, and the front seat is moved back far enough to make contact with the rear seat headrest.
A001459 2029737-2017-12-14. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 00 number 12-34 dated June 6, 2012. The process of draining oil through the drain plug is not always tidy. When oil is drained through the drain plug, the oil might spill on components around the oil pan area. If it is not properly cleaned up, this spilled oil could drip after the procedure is complete, causing unnecessary customer complaints.
A011396 2023360-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-79 dated March 20, 2013. MIL on. DTCs are stored in the engine control module (address word 01). Excess rattling (?diesel clatter?) coming from engine. No start or hard starting condition. Contaminated fuel found in fuel system. Rust or metal debris found in fuel system. Contaminated or incorrect fuel can cause performance, drivability, and/or fuel delivery problems. Additional component replacement may be necessary to ensure that no contamination or debris remains after repair. Reasons for fuel contamination can include: water ingress in the fuel station?s holding tanks, errors made in fuel transport, or incorrect fuel has been dispensed into the vehicle.
A011395 2033561-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Faults are stored in the engine control module (ECM). Engine shakes. Some of the Bosch ignition coils installed in the affected vehicles may fail prematurely.
A001349 2033576-2017-12-05. Service bulletin. ENGINE. 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.
Campaign Circula2017-12-05. Service bulletin. FUEL SYSTEM, DIESEL. As diesel engine passenger vehicles become more popular, auto manufacturers have seen an increase in the number of misfueling cases where diesel engine vehicles are mistakenly fueled with gasoline. The resulting fuel system contamination can lead to costly repairs that are not covered under warranty. As an additional safeguard to help prevent a gasoline fuel pump nozzle from being used to fuel a TDI® Clean Diesel engine vehicle, dealers will install a misfueling guard in the fuel filler neck of vehicles affected by this action. Additionally, a new fuel filler neck cap will also be installed.

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