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Water Cooled

J

j1mw1ll1s

New member
Hi Everyone

Got fed up having water inside the car as well as outside, so stripped everything out and spent many frustrating hours selectively masking & jet-spraying the car. I eventually found a small underground lake in the most obscure possible place, i.e. in quite a deep 'pocket' behind the brake master cylinder / brake booster assembly. Car is a C4 LHD, so that's on the right of the luggage compartment if you're standing at the front looking in, just forward of the bulkhead, which may explain why water goes into both the interior, and the boot. More time spent with rubber tube, bent wire coat-hanger plus kitchen roll, hairdryer etc. etc. So now I know where the water goes, but not where it comes from / how it gets in! Before I do more spraying (thereby filling the lake up again!), I wonder if anyone else has had this particular problem, or if there are any pointers, or advice on this?

Would be very grateful for any help, thanks in advance. Regards to all.

James
 
at a guess i would say bonnet seal brocken on the top corners or its getting in of the freash air vent in the middle of the scuttle panel
 
Isn't it often the windscreen seals?

I had water in the front & the back of the car & resealing the screens stopped it.
 
Guys, thanks for the suggestions, I too suspected the air vent, clearly water goes in there and there must be a 'proper' drain which could be damaged, disconnected etc- but where, and how to get to it? That said, I had a new windscreen not that long ago, so it could be that. The seal looks OK, though. Many possibilities (and much potential for more hours of frustration and skinned knuckles....)
 
There is an outlet from the heating system under the car, between the front wheels. Kind of oval, 10cm long and with a teardrop shaped hole at each end......I used some wooden dowel to clear, but any wire or the like will do. This caused me wet feet on cornering in my first 964 C4 cab...nice easy fix.
Also, check the rubber drain bungs in the bottom of the luggage compartment. There should be 4 or 5 domeheaded bung/tubes. They are cheap enough from the OPC if any need replacing. I normally cut a cenitmetre off each, so they do not stick out too much beneath the car. Pay attention, as I think there is one under the ABS/AWD control unit on the left, as you look at the car from the front.
Bonnet seal is also not expensive to replace and a relatively simple job with some good contact adhesive.

Good luck,
Jon
 
Hi, thanks for your suggestions & apologies for the delay in responding- have been away.
After yet more frustrating & time-consuming masking / squirting, I'm pretty sure this has something to do with the fresh-air intake / servos etc. it all looks pretty complicated (Adrian Streather p348) with plenty of scope for flaps not shutting, drains not draining etc. Anyway the car's just gone in for its MOT & I've asked my guy to put it on the ramp and have a poke about! All the bungs you mention are in place, screen seal good, etc.
Fingers crossed.

All best
James
 
Hi James, it sounds like you have a similar leak to me.....a puddle that forms by the pedals. Mine was not bad but occurred more if my car was parked slightly up hill.

Fingers crossed, I think I have now fixed it.

I suspected the fresh air intake but couldn't re-create the leak by pouring water in. It just came out the bottom as it should (in the place mentioned by Jon above) i.e. the drains weren't blocked. However, when I took the grill off the intake and poked around inside, I found that there was a gap at the top of the rubber gaiter that is in the intake. This was enough to allow water to get behind it and into the car. The pic below shows how the gaiter wasn't sealing at the top (it's sort of folded downwards):

FAintakerubber1_zps689ba2c1.jpg


Either side of this gaiter there are two bolts which attach to a plate underneath that secures the gaiter to the fresh air intake. Removing these bolts and the plastic scuttle (so I could access the securing plate underneath) allowed me to adjust the gaiter so that it fitted the intake properly. I then put it all back together and the pic below shows that there is no longer a gap at the top:

FAintakerubber2_zps85294ed6.jpg


Since doing that I've not had the leak. It's a fiddly job but well worth a look. You might even find there is a split in the gaiter which might be causing the leak.
 
Hi Steve

Thanks for the suggestions. When I took the grille off, I wondered if the rubber gaiter looked a bit askew- but I couldn't for the life of me see how to get at it, to adjust. You are clearly more dexterous than me- or more determined! Anyway, thanks to your detailed explanation & pics, I'll have another go. Watch this space...

The odd thing is that I'd managed to eliminate the pooling when the car is stationary- but as soon as I took it out for a therapeutic blast, the water found its way in again- so it's evidently movement- or air-flow-related, and gets dislodged from wherever it collects. Hmmm.

Further report in due course

James
 
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