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Service bulletin TSB-94-10-38

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10035345
Published by NHTSA2011-02-16
Manufacturer's numberTSB-94-10-38
Manufacturer's date2010-10-20
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS

NHTSA's summary

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

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Lighting, Headlights

Vehicles listed
AUDI A32006, 2007, 2008, 2009, 2010, 2011
AUDI A42002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
AUDI A4 AVANT2011
AUDI A52008, 2009, 2010, 2011
AUDI A62005, 2006, 2007, 2008, 2009, 2010, 2011
AUDI A82004, 2005, 2006, 2007, 2008, 2009, 2010
AUDI Q52009, 2010, 2011
AUDI Q72007, 2008, 2009, 2010, 2011
AUDI TT2008, 2009, 2010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
05V0960002005-03-15. EXTERIOR LIGHTING:HEADLIGHTS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
A9424722073282_12024-04-04. Service bulletin. This bulletin provides information on visual concerns with the headlight lens.
A9423672071954_12023-11-06. Service bulletin. This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight.
A0023692031473_42023-06-06. Service bulletin. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender.
A0021472031473_32021-07-02. Service bulletin. This information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again.
A941455 2038649-2017-12-05. Service bulletin. A headlight system warning may be illuminated in the instrument cluster. Headlight range control inoperative. Xenon high beam inoperative on one side. Daytime running light inoperative in headlight on one side. Diagnosis of the concern indicates that the headlight is at fault. Connector in the headlight is not properly seated.
A941456 2038727-2017-12-05. Service bulletin. A headlight system warning may be illuminated in the instrument cluster. One or more LEDs in the low beam are inoperative on one side. Internal cooling fan is inoperative in one headlight. DRL inoperative on one side. LED turn signal inoperative in one headlight. Diagnosis of the concern indicates that the headlight is at fault. Connector in the headlight is not properly seated.
A941326 2031378-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 12-93 dated October 25, 2012. Cap on dimmer knob (light switch) has fallen off and cannot be found.
A941328 2028277-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 13-24 dated July 18, 2013. There is considerable moisture present in the headlamp. The moisture disappears only after extended drives (greater than 10 minutes). There is no external damage to the headlamp which could introduce moisture.
A941320 2028277-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 13-11 dated March 6, 2013. There is considerable moisture present in the headlamp. The moisture disappears only after extended drives (greater than 10 minutes). There is no external damage to the headlamp which could introduce moisture. Humid air settles on the inside of the glass, causing moisture to appear on the inside of the headlamp lens. Because of the headlamp circulation system, outside air is allowed to flow through the headlamps. The open, water-protected ventilation system (needed for pressure compensation) creates different "climate zones" inside the headlamp, where the lens is either warmed up by the light or cooled down by passing air. When high air humidity and temperature differences exist between the inside of the headlamps and the outside, condensation can form on the inside of the lens, especially in cold and wet weather. This moisture buildup can happen, for example, after a car wash, after steam cleaning of the engine or the front end, or after overnight temperature changes. This condition is more easily visible with headlamps made from clear glass. The moisture is an optical condition which does not affect the headlamp function (light performance) and does not lead to corrosion or damage of the internal headlamp parts. This condition is common to all exterior vehicle lights, and can occur on every headlamp, fog lamp, or rear lamp.
A941324 2028277-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 13-20 dated July 3, 2013. There is considerable moisture present in the headlamp. The moisture disappears only after extended drives (greater than 10 minutes). There is no external damage to the headlamp which could introduce moisture.