Audi S8 2008 with drips from the headlining -- blocked front sunroof drains overflowing into the light fittings. Cassette cleaned, pipes flushed. Graphene coating, ceramic alloys and glass, leather treatment added.
The owner of this Audi S8 had been getting drips from the headlining onto the centre console. We ran the 28-point check first -- no water in any of the footwells, nothing in the boot, which is a good sign. It told us the problem was not serious yet, but it still needed finding.
The sunroof on an S8 has four drainage troughs, one at each corner, each with a pipe that runs down through the body and exits at the wheel arch. James poured water into the front troughs and watched it sit there. On a clear drain, water should disappear almost immediately. On this car, the front two troughs were filling up and not releasing. The back drains were clearing normally. We could see exactly where the water was going: over the top of the cassette and out through the light fittings in front of the sunroof -- which is where the drips onto the centre console were coming from.
The fix was straightforward: the cassette cleaned, all four pipes flushed front and back. No drying needed because there was not enough water in the car. If those drains had been blocked for much longer, the water would have started running down the A-pillars under the carpet -- and a car like this has enough electronics under that carpet that you do not want water near any of it.
While the car was with us, the owner decided to add a graphene coating. The S8 had already been polished, so it went on to the full treatment: graphene coating on the paintwork, ceramic on the alloys and glass, heat-resistant ceramic on the tailpipes, an interior detail, and leather treatment to keep the hide soft. It came in with a water problem and left with a finish that will protect it for years.
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