Audi A4 2007 with water on the floor pan found by a dealer during service. James hoses the scuttle area and watches water pour onto the electrical control unit in the footwell. Underlay saturated, wiring loom submerged. Scuttle sealed, dried, returned.
This Audi A4 2007 came in because the dealer had found water on the floor pan during a service and sent the owner a video of it. He had not noticed anything inside the car; no damp smell, no steamed windows. The dealer had lifted the carpets and sucked out some water, but he was not confident they had dried it properly -- and he wanted to know where it was coming from.
James ran the 28-point check. The scuttle area was the first place to investigate on an A4 of this age. He positioned the hose up under the wiper grill and let it run. The result was immediate: a heavy flow of water came in through the passenger side, straight onto a large electrical control unit housed in the lower footwell. The water had been pooling there and running all the way back under the carpet to the rear.
The carpets came up. Wiring loom submerged, electrical box half-submerged, a visible puddle of standing water in the floor pan. James squeezed the underlay: water poured out. This is what a clean, dry-feeling carpet is concealing when water has been sitting underneath it for any length of time.
The owner had also mentioned that his washer fluid level was dropping when he topped it up. That is a separate issue -- coloured washer fluid in the footwell would confirm it -- and worth monitoring, though the main ingress was clearly the scuttle drain.
Scuttle cleaned and sealed. All water sucked out, super dryer into the floor, carpets and seat back in. Courtesy wash on handover. Everything dry on final check.
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