Question about Toyota Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: i have an audi a4
This is a common problem with your shape A4, pre 2001 A4s and old shape A6s. Rain water builds up in the area under the bonnet where your battery is. This can be accessed by removing the long black trim under the windscreen covering the battery. This area has two drain holes with small rubber tubes on it, these tubes get blocked over time by leaves, dirt etc. They need to be unblocked, and the tubes can be completely removed (and left off). This is much easier to do underneath the car but at least one can be done from the top. Its under the battery though. Be aware when you disconnect the battery, you will lose your radio coding.
It needs to be done though as if the water is coming in the car then it must be high. The water has most likely damaged your convenience control unit (electronic control unit) under the carpet of the footwell, this controls the failed electrical items you described. The water can cause further problems, electrical as it submerges the battery! And brakes as the brake servo can **** the water in causing many problems! Well worth getting it out sooner rather than later. Hope this helps and hasnt scared you too much. Good luck
Posted on Jan 23, 2009
SOURCE: Leaking shell
I had exactly the same problem about three years a go on a 96 passat (just before the model change).
It turned out to be the grommet where the bonnet release cable goes through the bulkhead had pulled out. I pushed it back in and plastered a silicone sealer over it and it has been fine since.
However, a couple of months ago, I noticed that the inside of the car was very damp again. The carpets and foamy stuff have all been taken out. This time, it was just the drivers footwell that was sopping wet. The grommet around the bonnet release cable is still in place. I've dried it all out and we've had a couple of torrential rainstorms since then, but no water has come into the car so I'm stumped.
Posted on Feb 08, 2009
The heater/airconditioner box under the dash has a drain hose to allow condensation to drain when the air conditioner is running. If this hose gets plugged, rain may accumulate in this box also (if it's raining heavily), as it comes in through the fresh air intake.
Look on the engine side of the firewall, probably on the passenger side, for a hose coming through the firewall that is not connected to anything. It is usually short, has a 90 degree bend, and the open end is down. Make sure that the end of this hose is not plugged.
Posted on May 11, 2009
I have a discovery 3 and I had the same problem with water in the footwell. The problem was blocked drain holes on the sunroof. The water overflows from the sunroof onto the headlining ( which is plastic coated so the water will not come through it) and then ran down the headlining to the "A" pillar. It ran down the back of the "A" pillar trim and then came out of the joint between the trim lower down by the door hinge area.
Posted on Jan 03, 2010
SOURCE: water leak into driver footwell
Hi, I've had this problem and spent hours with my Wife watering the front scuttle area with the wipe mechanism removed. I hope at last I've narrowed it down to an area where the brake booster to attached to the firewall. Rather than take it out I've used a cleaning gun on a compressor and fired heaps (and heaps) or black soundproofing tarry solution down around, in and about the right side as you look from the front. Certainly at this stage the water running inside has decreased markedly and I've given it one last blast this morning. I'm optimistic this will cure.
Posted on Jan 11, 2011
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