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Service bulletins for the 2009 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.

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

By type

By component

By trouble code

Bulletins, newest first
TSB-01-11-322011-12-07. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. AUDI: BULLETIN TO ASSISTANCE IN FUEL PRESSURE SENSOR BEING DIAGNOSE PROPERLY. *PE
TSB-01-11-302011-10-24. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. AUDI: ASSISTANCE IN DIAGNOSING FUEL PRESSURE SENSOR-G247, PROPERLY. *PE
TSB-15-11-192011-08-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VOLKSWAGEN: MALFUNCTION LIGHT IS ON AND THE ENGINE IS DIFFICULT TO START. THERE MAY BE A RATTLE IN THE ENGINE COMPARTMENT AND POSSIBLE DAMAGE TO THE CAMSHAFT. THERE ARE TWO POSSIBLE TROUBLE CODES STORED. *RM
SB-15-11-212011-06-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VOLKSWAGEN: MALFUNCTION LIGHT IS ON AND THERE IS NOISE FROM THE TIMING CHAIN. ENGINE IS DIFFICULT TO START AND THERE ARE TWO POSSIBLE TROUBLE CODES STORED. THERE IS POSSIBLE DAMAGE TO THE CAMSHAFT. *RM
SA-19H12011-06-22. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A SEAL INSIDE THE COOLANT PUMP CAN WEAR OUT AND LEAK COOLANT. THIS ALSO CAUSED THE ENGINE LIGHT TO COME ON. *RM UPDATED ON 06/27/2011. *KB
SA-19H1-102011-06-22. Service bulletin. POWER TRAIN. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. APOLOGY LETTER ABOUT THE WATER PUMP CAMPAIGN AND WARRANTY INFORMATION. *RM
SA-19H1-082011-06-22. Service bulletin. POWER TRAIN. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. APOLOGY LETTER ABOUT THE WATER PUMP CAMPAIGN AND WARRANTY INFORMATION. *RM
SA-483262011-06-22. Service bulletin. POWER TRAIN. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. APOLOGY LETTER ABOUT THE WATER PUMP CAMPAIGN AND WARRANTY INFORMATION. *RM
SA-US-062011-06-22. Service bulletin. POWER TRAIN. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. APOLOGY LETTER ABOUT THE WATER PUMP CAMPAIGN. *RM
SA-19H1-F12011-06-22. Service bulletin. POWER TRAIN. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. UNDER CERTAIN CONDITIONS THE COOLANT PUMP MAY LEAK. *RM
TSB-38-11-052011-06-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: TRANSMISSION PROBLEMS RESULTING IN A DELAYED ENGAGEMENT WHEN COLD OR NO DRIVE ON FIRST ENGAGEMENT. *RM
SB-24-10-612011-06-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VOLKSWAGEN: MALFUNCTION LIGHT IS ON WITH MISFIRE CODES. THERE IS A SOFTWARE UPDATE. *RM
TSB-90-10-212011-05-21. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. AUDI: FUEL TANK DOES NOT REFLECT THAT FUEL TANK IS FULL. *RM
TSB-57-10-382011-03-30. Service bulletin. STRUCTURE:BODY:DOOR. AUDI: DOOR HANDLE TOUCH SENSOR (ADVANCED KEY) WILL NOT UNLOCK VEHICLE. FOLLOWING CONDITIONS MAY BE PRESENT-ONE OR MORE DOOR HANDLE TOUCH SENSORS CANNOT BE USED TO UNLOCK THE VEHICLE DOORS; THROUGH DIAGNOSIS IT HAS BEEN DETERMINED THAT A DOOR HANDLE TOUCH SENSOR MUST BE REPLACED. *PE
SB-28-10-132011-03-17. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. AUDI: KEY DOES NOT STAY OR ENGAGE IN IGNITION LOCK. ON VEHICLES WITHOUT ADVANCED KEY, THE REMOTE KEYS ARE INOPERABLE. ON VEHICLES WITH ADVANCED KEY, UNLOCKING/LOCKING USING THE DOOR HANDLE AND THE OPENING OF THE TRUNK LID WITH TRUNK HANDLE ARE INOPERABLE; VEHICLE CANNOT BE STARTED WITH START/STOP BUTTON; REMOTE KEYS ARE INOPERABLE. *PE
TSB-20-10-102011-03-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: ONE OR MORE OF THE FOLLOWING DTCS ARE STORED WITHIN FIRST 60 SECONDS, WHEN COOLANT TEMPERATURE IS BETWEEN 10-39%C ACCORDING TO FREEZE FRAME DATA: DTC P0300 (RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED); DTC P0301-P0306 (CYL. 1 MISFIRE DETECTED-CYL. 6 MISFIRE DETECTED). *PE
TSB-94-10-382011-02-16. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. AUDI: DAYTIME RUNNING LIGHTS DO NOT WORK. DAYTIME RUNNING LIGHTS DO NOT WORK ON VEHICLES WITH XENON HEADLIGHTS. THE THUMB WHEEL OR OPTION FOR DAYTIME RUNNING LIGHTS IS TURNED OFF BY MISTAKE. *PE
TSB-90-10-202011-02-15. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. AUDI: FUEL GAUGE DOES NOT REFLECT FUEL TANK IS FULL. THE FUEL GAUGE DOES NOT SHOW FULL EVEN THOUGH THE TANK IS COMPLETELY FILLED. THIS MAY OCCUR AFTER THE VEHICLE HAS BEEN TRANSPORTED BY A VEHICLE TRANSPORT TRUCK. THE LOWERED READING IS TRIGGERED WHEN THE VEHICLES ARE LOADED ONTO VEHICLE TRANSPORT TRUCKS OR WHEN PARKING ON AN INCLINE. THE VEHICLE IS TILTED, CAUSING THE FUEL LEVEL SENSOR VALUE TO CHANGE WITHOUT THERE BEING A SPEED SIGNAL IN THE INSTRUMENT CLUSTER. AS A RESULT, THE INSTRUMENT CLUSTER PERCEIVES A REFUELING PROCESS. *PE
TSB-69-10-102011-02-15. Service bulletin. AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE. REPLACED AIRBAG CONTROL UNIT CANNOT BE CODED. AFTER REPLACING THE AIRBAG CONTROL UNIT, THE CONTROL UNIT CANNOT BE CODED VIA SVM SPEC/ACTUAL. THE LATEST REVISION OF THE AIRBAG CONTROL UNIT MUST BE CODED AND PARAMETERIZED USING AN SVM CODE, WHICH IS LISTED ETKA IN THE REMARKS AREA FOR THE PART NUMBER. *PE
TSB-00-10-022011-02-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT (SVM) OPERATING INSTRUCTIONS. DETAILING THE GENERAL PROCESS FOR CARRYING OUT A SOFTWARE VERSION MANAGEMENT (SVM) SOFTWARE UPDATE FOR ANY TSB OR REQUIRED VEHICLE UPDATE (RVU). TROUBLESHOOTING INFORMATION IS INCLUDED. *PE
TSB-15-10-042011-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON; NOISE FROM TIMING CHAIN (DTC P001600). MIL ON; ENGINE DIFFICULT TO START; SOMETIMES RATTLE IN ENGINE COMPARTMENT; BANK 1, CAMSHAFT POSITION G40/CRANKSHAFT POSITION SENSOR G28, WRONG ASSIGNMENT STORED IN ENGINE CONTROL UNIT; POSSIBLE DAMAGE TO CAMSHAFT OR CAMSHAFT BEARING SURFACES. *PE
TSB-01-10-132011-02-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON; ROUGH IDLE; ONE OR MORE OF THE FOLLOWING DTCS ARE STORED-DTC P0300 (RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED); DTC P0301-0312 (CYL. 1 MISFIRE DETECTED-CYL.12 MISFIRE DETECTED); ENGINE MAY HAVE REDUCED PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. *PE
TSB-01-10-092011-02-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON; ROUGH IDLE, ONE OR MORE OF THE FOLLOWING DTCS ARE STORED-DTC P0300 RANDOM/MULTIPLE CYLINER MISFIRE DETECTED; DTC P0301-0312 (CYL. 1 MISFIRE DETECTED-CYL. 12 MISFIRE DETECTED); ENGINE MAY HAVE REDUCED PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. *PE
TSB-15-09-042011-02-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. AUDI: ONE OF THE FOLLOWING DTCS WILL BE STORED: CRANKSHAFT POSITION-CAMSHAFT POSITION CORRELATION BANK 1 SENSOR A & B; CRANKSHAFT POSITION-CAMSHAFT CORRELATION BANK 2 SENSOR A & B; A SLIGHT POWER REDUCTION MAY BE ASSOCIATED WITH THIS CONDITION. THIS CONDITION DOES NOT CAUSE STALLING. *PE
TSB-94-10-192011-02-07. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. AUDI: XENON HEADLIGHT FLICKERS OR IS INOPERATIVE ON ONE SIDE (DTC 00978 OR 00979). ONLY PHILIPS BRAND XENON BULBS ARE AFFECTED. *PE

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