Passat 2003, electric windows , central lock faulty

Tea drinker

Problem with windows and locking, neither are working.
This is probably a fault with the comfort module?

Does the wiring often go out on these? Car doen't have a sunroof and has been dry and faultless for the 4 years I had it. Been out of the country so getting serviced now to be ready when I get back.

Car had battery disconnected for last few months - any chance this is an issue or am I looking at new CCM and wiring replaced?
How much :eek:

Tea drinker

Well the problem went away when the mechanic had it and then returned..... I had a dig at this and find under the carpet is wet where the comfrt control module is. I lifted it up and am trying to get it dry for now.
Later I will start cleaning and checking connections, anything not clean will get a good clean up and a dap of copper grease.
Not 100% sure but I think the leak is at the intake for the fan. I had a power wash today and see some water around this are but couldn't exactly tie down the source. Anyway I will reef out the cover and clean it up and silicon seal it. Have to start somewhere.
Any other ideas for where to seal?

golfbgud

Water ingress problem - if you search on here you will find a few threads.

The rubber bungs to the left of the fan intake also get clogged. You will be lucky if just drying it out will fix your problem. I tried that as well as bypassing a few wires that were broke and it still didnt work. Common fault apparently but epensive too!

Tea drinker

Well I stripped out the pollen filter mount and cleaned it up, I was going to get a seal for it but just went ahead with drying it out and giving it a lash of silicon sealant. Managed to break the flimsy plastic sill that goes on the bottom of the windscreen. I think there is a reason why professionals do this kind of work ;-)
I looked over the wires and nothing seems broken or corroded, so am going to leave as is and bring to hamiltons auto electric place. The actual PCB and connectors on it were clean as a whistle so I'm at least hopeful I won't need that.... lets see how it goes. I think the leak which caused the whole thing is sorted but I will ask the Hamilton guys to look it over in the scuttle area and underneath. Will give it a good power hose and check for leaks etc.

crzybkr73

REMOVE BATTERY TERMINAL BEFORE REMOVING SEATS. well if you look at the ccm from the position of the passenger door, to the left(front of car) you should see the wiring loom heading under the carpet towards the footwell. strip back the covering tape from the bundle of wires as far forward as you can. inspect these wires and you shall find a few corroded connections covered by some flimsy tape( this is the actual vw installation). i had the exact same problem not so long ago, and the ccm was perfectly good.i repaired these wires( 3 or 4 of them i think) now my centrallocking and windows and alarm all work good again. do not spend a fortune on a mechanic who will probably only replace the ccm.

crzybkr73

there is a very detailed post in here somewhere with high quality colour pics somewhere in here that shows your exact problem. cannot remember exactly where though. hope this helps

golfbgud

Have read here:

http://www.boards.ie/vbulletin/showthread.php?p=70226041

crzybkr73

not the one i was thinking of(perhaps its in another forum) but good all the same.the one i was thinking of shows the steps for removing the carpet and ccm, also shows pics of the damaged wires.

golfbgud

More useful info here:

http://www.boards.ie/vbulletin/showthread.php?t=2055757452&page=2

golfbgud

the step by step guide....

http://nackuk.blogspot.com/2010/06/with-some-of-interior-lights-puddle.html

crzybkr73

thats a very good guide.
i found the one i was talking about
http://www.headfuzz.co.uk/?q=vw_ccm

nogoodnamesleft

Here is a link to the guide I wrote a while back when I tackled the job in my own Passat. There are a few Pics in the post to give you an idea what your looking at. Luckily I noticed that this was occuring before water had entered the interior.

http://www.boards.ie/vbulletin/showthread.php?p=63292519#post63292519

golfbgud wrote: »

the step by step guide....

http://nackuk.blogspot.com/2010/06/with-some-of-interior-lights-puddle.html

I wouldnt take this guys course of action regards drying out the car...he makes his own "drain holes" in the floor pan of the car by boring at least two holes to drain the water "in the deepest parts". Its not exactly a swimming pool he is draining. Best way would be to dry as much water out of the interior and leave a dehumidifier in the car for a few days. Giving the carpet a spray of some antibacterial solution wouldnt be a bad idea either to eliminate any mold that might appear.

crzybkr73 wrote:

thats a very good guide.
i found the one i was talking about
http://www.headfuzz.co.uk/?q=vw_ccm

Personal preference but I always avoid using scotchlocks in order to repair/tap into electrical wiring. Heat shrink and solder are the best and safest method in which to replace damaged wiring.

crzybkr73

yes, i totally agree. putting holes in the floor only allows more water to enter at other times. best to solve the problem at source. and heatshrink and solder are the best way to prevent further problems.
then again if vw would have done the job properly in the first place there would be no need for thousands of people to waste a fortune on silly repairs or hours wasted looking for the problem

Tea drinker

Thanks a mill for the replies guys. Will definately double check the area under the battery for blockages.pretty sure it was leaking behind the pollen filter housing (seal was almost split, was dirty and wet. and the carpet was wet from low point following higher up to this area under the . Fixed the seal after a good drying/cleaning by using some a good dose of silicon sealant.
The water is totally dried out now and I got a load of dessicant in Lidl for 6 euro yesterday which should finish the job. I'll see about some anti-bac spray as well. Garage has replaced the CCM module and coded up the 2 keys so almost back to normal now. As the wiring actually looked in very good nick I thought best to bring to Hamiltons and glad I did as they ordered the CCM friday and had it fitted today, so pretty good service and reasonable too.

golfbgud

Tea drinker wrote: »

Thanks a mill for the replies guys. Will definately double check the area under the battery for blockages.pretty sure it was leaking behind the pollen filter housing (seal was almost split, was dirty and wet. and the carpet was wet from low point following higher up to this area under the . Fixed the seal after a good drying/cleaning by using some a good dose of silicon sealant.
The water is totally dried out now and I got a load of dessicant in Lidl for 6 euro yesterday which should finish the job. I'll see about some anti-bac spray as well. Garage has replaced the CCM module and coded up the 2 keys so almost back to normal now. As the wiring actually looked in very good nick I thought best to bring to Hamiltons and glad I did as they ordered the CCM friday and had it fitted today, so pretty good service and reasonable too.

What sort of money did you spend with Hamiltons Tea Drinker? Was it a new or refurbished CCM? Send me a PM if you dont want to post details in public?

Thanks.

crzybkr73

i am lucky as where i live in ireland there is an official vw breaker yard near me so spares are not usually a problem. the only problem with electrics is that they are sale/no return. but still it dramatically cuts down on the costs. ps i am not a qualified mechanic, just self taught

golfbgud

golfbgud wrote: »

What sort of money did you spend with Hamiltons Tea Drinker? Was it a new or refurbished CCM? Send me a PM if you dont want to post details in public?

Thanks.

Bump!

Tea drinker

golfbgud wrote: »

Bump!

Hey, yeah standard price for new CCM seems to be about 300 euro. They recommended a new one rather than going looking for one in a scrappy as even without water ingress these units fail. Throw in a bit of labour and VAT on that.... you get the picture.
No complications with failed wiring, although carpets were wet it looks like it maybe started leaking (under the base of the pollen filter) a few months back. Maybe the severe frost screwed the seal.


Like i said to you before golfbgud, one of the biggest attractions with Hamiltons is it is an old business with a good rep in a side street, not some "Glass Palace" with a cappucino maker ;-)

Tea drinker

crzybkr73 wrote: »

i am lucky as where i live in ireland there is an official vw breaker yard near me so spares are not usually a problem. the only problem with electrics is that they are sale/no return. but still it dramatically cuts down on the costs. ps i am not a qualified mechanic, just self taught

That's super handy, and god knows the VW's do like a bit of parts loving from time to time! I didn't want to get into scrappy looking for parts as right now I am tied up with either work or my domestics, (moved home from abroad.)

golfbgud

crzybkr73 wrote: »

i am lucky as where i live in ireland there is an official vw breaker yard near me so spares are not usually a problem. the only problem with electrics is that they are sale/no return. but still it dramatically cuts down on the costs. ps i am not a qualified mechanic, just self taught

Who is the scrapper you mention and are they online? Thanks.

golfbgud

I plan to have another go at mine before I give in to a 300+ spend! A good chunk of my CCMN is operational so it may just be a few more bad wires to chase down.

Problem is that "herself" keeps throwing other jobs my way about the house so time is scarce!

If I could get my hands on a proper wiring diagram from VW it might narrow down the task.......

Now who do I know in a VW Main Dealer Workshop?????....