WenmarOpen by Wenmar Pro

Service bulletins for the 2011 Audi A4

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SM 01-20262026-08-05. Other. ENGINE. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
TSB_2082323_12026-07-07. Service bulletin. ENGINE. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
TSB_2021205_102026-03-03. Service bulletin. ENGINE. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
TSB_2060750_52026-02-06. Service bulletin. ENGINE. This bulletin provides information regarding UV leak additive for finding oil leaks.
TSB_2075530_22025-04-04. Service bulletin. ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A0124482014753_132025-01-07. Service bulletin. ENGINE. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
A1524532075530_12024-11-06. Service bulletin. ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A2424632074810_22024-10-28. Service bulletin. ENGINE. This bulletin provides information when ther is an Engine: start/stop system fault shown and start/stop system not is working; mileage below 50 km/32 miles.
37126420306482024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Engine speed increases when driving downhill, vehicle speed is not increased - CVT transmission
17133620301972024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Engine oil consumption - Customer complaints, 3.0T TFSI Model Year 2009 ? 2012
17123420301972024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Engine oil consumption too high, 3.0T TFSI Model Year 2009 - 2012
17123220185502024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. Oil consumption measurement - Repair Authorization (CA)
A0023712070568_12023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on professional noise analysis with the VAS 611 015 PICO NVH Tool.
A1023262018288102023-07-10. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on checking for debris when replacing an engine.
A9123942018187132023-06-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference.
A1923362025303142023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants.
A0123412014753122023-03-06. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
Edition922023-02-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Idenifying and mixing factory fill engine coolants
Edition832023-02-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:IGNITION. 97 no start
011403203322332023-01-03. Service bulletin. ENGINE AND ENGINE COOLING. The programmed values for the misfiring recognition are not automatically reset by deleting the memory once.
011395203356112023-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Engine shakes. Some of the Bosch ignition coils installed in the affected vehicles may fail prematurely.
011383203300112023-01-03. Service bulletin. ENGINE AND ENGINE COOLING. Under certain driving conditions, the secondary air ports in the cylinder head can accumulate carbon over time, causing a restriction.
011373203322312023-01-03. Service bulletin. ENGINE AND ENGINE COOLING. Engine warning light on after engine replacement
011330202708252023-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. DTC P0234 (Turbo/Super Charger Overboost Condition) is stored in the engine control module, J623 (address word 01). No other DTCs are stored. Technical Background DTC P0234 can be set inadvertently by the software application.
011329203322322023-01-03. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). The programmed values for the misfiring recognition are not automatically reset by deleting the memory once.

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