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Water collecting in rear door.


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After all this terrible rain we've been having I've noticed water coming out of the bottom of my offside rear door.

This is the same door which the lock doesn't work on. I'm assuming this is the reason why.

Is this a common problem? Is there a guide I can follow to fix it? My car has stayed bone dry inside fortunately. But I want to nip this in the bud asap.

Cheers

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It's good that water is coming out of the doors, as if it wasn't then it would be collecting on the inside and causing problems.

 

Essentially, when ever rain drops slides down the window glass on the doors, they collect at the seal between the window glass and the door. Obviously this seal cannot be a very tight one as the glass has to slide through it when the window goes up and down, so the water goes down into the space just behind the outer skin of the door.

 

On the inside, there is normally a plastic sheet and / or some mastic, to keep that water out of the electrical gubbins and cause it to drip down to the bottom of the door, where it exits from several holes and doesn't come into the car itself.

 

It's always a good idea to occasionally use a bit of wire to poke around inside those holes and keep them clear form leaves, debris etc, because as long as they are clear, then the water has somewhere to escape.

 

If the route and drains are all good, then the carpets inside will be dry. If either is wrong, then water will leak into the car and saturate the carpets .... and it's one of the few problems that you find on the (otherwise impeccably designed)  Honda Jazz.

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oh .....  and if it's the door lock on the rear door that doesn't seem to be operating, then that is a fairly common problem (not water related) and requires a new lock (about £100 from memory) and fair amount of skill and targetted brutality to get the old one out.

 

You have to get the door open to change the lock and mine was refusing to unlock, and that's where the brutality comes into play ..... a hammer and cold chisel wielded by a mechanic mate of mine who knew what he was doing, thankfully.

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A door lock like this   http://www.ebay.co.uk/itm/VW-Rear-Right-Door-Lock-Mechanism-Actuator-For-GOLF-MK4-PASSAT-B5-UQ04-/281118390943?fits=Model%3APassat&hash=item4173f63a9f:g:8b0AAOSwpDdVbQ2w

 

should be a fix.  Remarkably cheap for such a complicated mechanism.

 

It's a bit of a fiddle to fit and be sure to reseal the window carrier plate afterwards!

 

There are plenty of instructions on the internet, such as this  http://www.passatworld.com/forums/b5-information-base/310280-diy-rear-door-disassembly-lock-mechanism-repair-intermittent-lock.html

 

The lock is the same as a Passat, but the Superb also has a plastic piece rivetted to either the lock or the door panel, because the Superb door is longer than the Passat.  This plastic piece needs to be removed from the old lock and fitted to the new one.

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I paid about £25 for one a couple of years ago, but the prices seem to have come down a bit since then.  At those prices it's not worth looking into fixing the old one.

 

It's no surprise that they all seem to come from the Far East, which doesn't necessarily mean bad. 

 

So many VW cars are being produced and sold in China and surely most parts are locally produced.

 

I wonder where the  European VW, Skoda and Audi ones come from?

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