WenmarOpen by Wenmar Pro

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

Only bulletins with component: Headlights are shown. Show all

Bulletins, newest first
A9423672071954_12023-11-06. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight.
A941312 2017566-2017-11-17. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:SWITCH; EXTERIOR LIGHTING:HEADLIGHTS. Supersedes Technical Service Bulletin Group 94 number 09-23 dated August 12, 2009. Headlight switch knob is pressed in. The switch functions correctly. The headlight switch knob was designed with a normal position and a pushed-in position. This is a deliberate design feature designed to avoid injuries in the event of a collision.
A941296 2027773-2017-11-08. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EQUIPMENT; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 94 number 12-69 dated March 15, 2012. Part or all of the daytime running lights do not work on vehicles with LED DRLs. For vehicles with halogen DRLs, please reference TSB 2017488, 94 Halogen Daytime running lights do not work. In the past, the daytime running light bulbs were a serviceable part. In this application, the LED strip cannot be replaced, and may have an associated control module. This TSB is for servicing information only.
A941431 2021751-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS. Supersedes Technical Service Bulletin Group 94 number 10-19 dated June 7, 2010. The xenon headlight on one side of the vehicle flickers or is inoperative. The condition may be intermittent or permanent. DTCs are stored in the electronic central electronics control module for the affected headlight. Only xenon bulbs manufactured by Philips are affected. The xenon bulb may have an internal leak at the crimp of the electrodes, and xenon gas can be released. Without an adequate amount of xenon gas, the bulb cannot establish a stable light arc. The xenon igniter control unit (ballast) repeatedly tries to establish an arc, which may cause a flickering of the headlight.
A941565 2012749-2017-10-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. Supersedes Technical Service Bulletin Group 94 number 12-92 dated October 24, 2012. Condensation is visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, or third brake light lens.
A941682201756662017-03-15. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:SWITCH. THE BULLETIN STATES A NORMAL FUNCTION OF THE HEADLIGHT SWITCH AND HOW TO FIX BUT NOT REPLACE. DEALER IS TO ADVISE CUSTOMER ON WHY THE HEADLIGHT SWITCH PRESSES IN.
2021751/42016-05-23. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-94-14-312014-03-20. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. AUDI: THE XENON HEADLIGHTS ON ONE SIDE HAS A CONDITION OF FLICKERING OR BEING INOPERATIVE AND MAY BE INTERMITTENT OR PERMANENT, DUE TO A POSSIBLE INTERNAL LEAKAGE AT CRIMP OF ELECTRODES AND GAS IS BEING RELEASED. MODEL 2008-2009 A4, A5, Q5. *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-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
TSB-94-10-122011-01-10. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:SWITCH. AUDI: AUTOMATIC HEADLIGHT SWITCHES ON AND OFF WITHOUT REASON. HEADLIGHT TURNS ON OR OFF EARLY OR LATE WHEN THE LIGHT WITCH IS IN THE AUTO POSITION; AFTER REPLACING THE RAIN LIGHT SENSOR G397 OR AFTER REPLACING THE WINDSHIELD, THE AUTOMATIC HEADLIGHT MAY TURN OR OFF WITHOUT CHANGE OF AMBIENT BRIGHTNESS. HEADLIGHTS OPERATE NORMALLY IF THE LIGHT SWITCH IS IN THE ON OR OFF POSITION. *PE
TSB-94-10-102010-11-04. 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
SB-94-09-202010-02-17. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. AUDI: THERE ARE TWO SEPARATE CONDITIONS THAT BOTH OCCUR IN VEHICLES WITH BI-XENON, WITH OR WITHOUT ADAPTIVE LIGHTING (AFS). ONE XENON LIGHT ON EITHER SIDE SPORADICALLY FLICKERS OR FLASHES AND GOES OUT. ONE XENON LIGHT ON ONE SIDE FAILS PERMANENTLY. *PE
TSB-94-09-122009-10-31. Service bulletin. EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS. AUDI: HEADLIGHT, LOW BEAM MAY NOT WORK. THERE ARE TWO SEPARATE CONDITIONS THAT BOTH OCCUR IN VEHICLES WITH BI XENON, WITH OR WITHOUT ADAPTIVE LIGHTING(AFS). ONE XENON LIGHT ON EITHER SIDE SPORADICALLY FLICKERS OR FLASHES AND GOES OUT. ONE XENON LIGHT ON ONE SIDE FAILS PERMANENTLY. *PE
TSB-94-09-142009-10-23. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH; EXTERIOR LIGHTING:HEADLIGHTS. AUDI: THERE ARE TWO SEPARATE CONDITIONS THAT BOTH OCCUR IN VEHICLES WITH BI-XENON, WITH OR WITHOUT ADAPTIVE LIGHTING (AFS): ONE XENON LIGHT ON EITHER SIDE SPORADICALLY FLICKERS OR FLASHES AND GOES OUT. WHEN HEADLAMPS ARE TURNED OFF AND ON AGAIN OR AT IGNITION CYCLE, THE HEADLAMPS MAY FUNCTION PROPERLY OR EXHIBIT THE SAME BEHAVIOR; ONE XENON LIGHT ON ONE SIDE FAILS PERMANENTLY. *PE
2012749-22008-09-03. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES; EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:BACK UP LIGHTS; EXTERIOR LIGHTING:FOG LIGHTS; EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:BRAKE LIGHTS. EXTERIOR LIGHTS, MOSITURE ACCUMULATION. *PE

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