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Volkswagen Cabrio Electrical Problems



  • kominskykominsky Posts: 850
    You are correct, that is exactly what it is... my daughter's away at school and I wasn't thinking that she had her car. She doesn't. It's sitting in the driveway. :blush: She has the same foam-surrounded box.

    Anyway, the Hayne's manual shows how to remove... simply disconnect the battery, pull it out of the foam, disconnect the wiring connector and pull the vacuum line. Installation is the reverse. But they give no tests that can be performed to see if the part is faulty.
  • Thanks for the reply. I'm tring to figure out if this box is working or not. If I use the key both doors lock or unlock so my thinking is the box is working. Neither key fobs are working so I'm not sure if this is the box that talks with the key fobs or if it Is only operates the locks and the signal comes from somewhere else. If that makes sense. I'm looking for some good hardware manuals but so far the three I've tried don't have much on this area. Bently publishing makes the dealer manuals so I may have to get those.
  • I'm seeing the exact same thing, did you find the root cause?
  • hi all, thanks in advance for the help...

    my wife has a 2000 vw cabrio,and the turn signals randomly stop working. I have checked the fuse, and the fuse is fine. could the relay be bad? how can it be checked?


  • Did you get this resolved? I am having the same issue. Sounds like a relay of some sort.
  • My lighter stopped working. The manual seems to indicate that the fuse is separate and on top of the other fuses and relays. Is this correct? Do I need to take the dash apart to get to it?
  • coniwconiw Posts: 2
    My drivers heated seat quit woking. Is this something I can fix easily?
  • I bought my 16 yr old daughter a 2002 Cabrio conv. with 38K and it was great for two (2) weeks!! Then the drivers front window quit and (keep in mind it's out of warranty) I was told I needed a new motor and switch, which I had them replace. After that the passenger front window quit one (1) week later! I told her just to drive it that way.
    I had a new stereo installed by Fryes on January 18th for a surprise b-day gift and dropped the car back at the High School with everything working properly - except of course the front passenger window. When she got home that evening she told me the key fob wasn't working and the horn was sounding every few seconds and the hazards would flash when this happened! Sounded like an alarm issue and I figured the key fob batteries were low so I replaced them and re-programmed the key fob according to the owners manual, which didn't help either situation. I first assumed that Fryes had shorted something when installing the new radio, which used a specific wiring harness that was bought specifically for that car, so I returned to Fryes to let them look at it before I took it to the VW dealership. During this day (of course it was raining all day) the windows would roll down on their own intermittently and sometimes roll back up and sometimes not, the horn would sound and the hazards might flash and might not!! The key fob had never began working again. Fryes took the new radio out and re installed the old one which had no affect on the problems and the windows actually rolled down in their garage with no key in the ignition! They said they new radio had been installed correctly and they re installed it and I was off to the VW dealer.
    As of this message, the dealer has had the car two weeks and installed a new main computer chip, a different chip that supposedly operated the front windows separately and various other parts that they are now saying totals almost $2,000 with labor! At one point last week they said I needed both front window motors and switches, to which I replied was not correct (and not in so many nice words). I told them the drivers side front window was working, on it's own with no key in the ignition when I brought the car in and to go find the real problem. This morning the service guy wasn't in yet and I talked to the mechanic. By the way, I was told last Thursday the car was fixed but they wanted to keep it overnight to make sure. That sounds like a patient in the hospital. I called this morning to come pick it up and was told it still wasn't ready! When I got the mechanic on the phone he was very frustrated and said they had never figured out the whole problem but as they installed new electrical parts and computer chips, some things would work for a period of time then stop again and he, nor any techs at the dealership, had ever run across these issues. I suggested he contact VW corporate service (thinking he had of course already done that) but it seemed to be a novel idea to him! Either this car is possessed or VW doesn't have a clue or both. If anyone has had anything remotely resembling this issue or even heard of it please give me some direction, any direction. Should I contact corporate? The service tech stated they could find nothing relating to the radio install that would have caused any of this and that the radio had been properly and professionally installed. I find it hard to believe several components failed on the same day, whether related to the radio install or not. The dealership keeps asking for me to authorize new and very expensive parts to be installed but can't say if these parts are solving anything or not. Of course I have to authorize these requests as a car that has windows going up and down without any reason, plus all the other issues is basically worthless! If they eventually, by luck, replace the correct part why shouldn't they remove every other part they have installed to make sure the car actually needed them? I don't feel I should pay for those parts or the labor and I most definitely feel VW's corporate service division should have been called in and been able to diagnose the problem - and much sooner!! So much for the impeccable German engineering. Someone please help before I have a bill that is more than the car is worth! :lemon:
  • My wife's cabrio has similar problems.

    The horn flashing and hazards flashing starting going off while going down the road. The last time it happened was in the middle of a major snow storm with the heat cranked, the wipers, rear defroster and lights on. There was a puff of smoke from under the dash. I pulled into the near by rest stop and check it out. Everything with the horns and light straigten out, but I lost the remote access.

    I know that the remote can also be used to control the windows up and down if you hold the button down for a while. My guess is that the remote control device is having all kinds of issues. I did not crawl under the dash to check out that problem, but I do do some diags on my window problem (wouldn't go down) and found that there were broken ground wires in the bundle of wires that goes from the door to the body.

    Hope this might give an idea.

  • I had the same problems with my wife's 02 cabrio. The door look was the problem . the door look when turned operates the windows and the alarm . water intrusion on the electronics on the door lock was the cause. Chech the ground inside the drivers door lock
  • Dear Scooterox,

    I've owned a 2002 Cabrio GLX for the last 4 years and I've became best friends with my mechanic.

    Yesterday I got similar issues that you've described:
    1) When I left my car in the garage overnight I noticed all the windows were open.
    2) The courtesy light on the drivers door wasn't working.
    3) When I was driving, the alarm horn would sound 3 times.
    4) The vanity lights were not working.
    5) The factory radio kept going into SAFE mode each time I shut off the engine.
    6) When I opened the driver side door the windows would go down.
    7) A 20 Amp fuse towards the far right of the of the fuse box was blown.

    So today I took it to a trusted mechanic as I haven't had much luck with the local VW Dealer. The mechanic replace the 20Amp fuse and as soon as the vanity light was turned on, it blew again.

    So he took the drivers side door panel off and found that wires coming from the door lock had been rubbing against bare metal of the door and had burnt out the insulation and were making contact. He rewired that section, 6 wires in total and put the door panel back on and everything is working as it should.

    Total cost of repair was $200.

    I would suggest you ask you VW dealer to check the wiring in the drivers side door first and also refuse to pay for all the components that they've changed ($2K bill) as they haven't fixed you issues. Write to corporate if they refuse.

    Hopefully your problem with be fixed and your daughter can enjoy the car.

    Its a great car when its working.
  • 2002 Cabrio Engine Malfunction Icon is lit on dash. Past experience was coolant housing. What other common causes.
  • coeincuscoeincus Posts: 2
    My cruise control in 95 cabrio is not working. I am looking for the 5 amp fuse that is supposed to support it but cannot find it. The windows also have a mind of their own . They sometimes will not respond to the switch demand. I have heard that the power windows and cruise fuses are not in the fuse box under the dash, but located under the hood. I don't se e them.....Can any one give me the location of those fuses or help me with this cruise dilemma ? thanks js
  • ClairesClaires Chicago areaPosts: 974
    The folks here suggest that the cruise control problem might be the pedal switches or a vacuum leak.

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  • The issue I'm having is when I turn on the blinker to turn right or left and depress the break the turn signal stops blinking.

    Any thoughts?
  • My 2000 Cabrio is doing the same thing ... I did get rear ended last month, so I am not sure if that caused it , going to the shop....I will repost an answer if they fix the problem
  • A defective ingnition switch can cause all of the above problems. It's just a switch on the back of the key assembly. the problem is getting to it requires removal of the sterring wheel. the switch was 5$ on ebay.

    good carefull with air bags.

  • headlight turn on when emergency brake off. These are driving lights.

  • The electric windows in my 98 cabrio don't always respond properly to the switches. My cruise control also does not work. My mechanic is stumped. Any ideas on solutions???? thanks John
  • 1997 vw cabrio will start and run for a few seconds. I have checked the coil pack-ok checked the fuel pump -ok but the trunk and door locks will operate by them selves then the car will not start. can this function be bypassed? thanks ken :">
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