S8 Quattro Sedan V8-4.2L (AYS) (2002)
Sunroof / Moonroof Drain: Service and Repair
Water Drain Hoses, Cleaning
NOTE: For cleaning, a locally manufactured cleaning probe made from a speedometer inner cable approx. 2300 mm (7.5 ft) long is recommended.
This is simultaneously rotated and passed all the way through the drain hoses.
Front Water Drain Hoses
The front water drain hoses are routed through the A-pillars and exit above the lower hinge of the front door (arrow). They can be cleaned from the
sunroof opening.
Rear Water Drain Hoses
The rear water drain hoses are routed through the D-pillars and exit behind the wheelhousing on the right side with battery vent hose - 1 - (arrow). They
can be cleaned from the lower end of the hose.