A8 Quattro Sedan V8-4.2L (BGK) (2006)
Tail Lamp: Customer Interest
Lighitng - Condensation Inside Tail Lamps
94 Condensation on taillight lens
94 10 33
2019864/4
August 10, 2010
Supersedes Technical Service Bulletin Group 94 number 09-27 dated September 2, 2009 for reasons listed below.
Affected Vehicles
CONDITION
The customer may report:
^ The inside of the taillight lens is fogged up.
^ Large drops of water may or may not be forming inside the taillight.
The function of the taillight is not affected.
TECHNICAL BACKGROUND
Humid air settles on the inside of the lens. This is a naturally-occurring phenomenon.
Large water drops or even accumulations are caused by a leak in the taillight. Poorly fitting covers, damaged seals or a cracked lens is usually the root
cause.
PRODUCTION SOLUTION
Not applicable.
SERVICE
If water is dripping from inside the lens or is accumulating inside the lens: