Electrical gurus

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Electrical gurus

Postby ChevetteCharlie » 17 Mar 2005, 13:52

OK, so this is not a Chevette electrical issue that I've got, but a few of you chaps obviously know the difference between a capacitor and a resistor, so here goes...

On my MkII Golf (sorry!) the rear wiper is playing up.
It used to sweep from rest, to the other side and back to rest.
Now it sweeps from rest and does slightly more than half the 'there-and-back' (technical term) so that after a couple of sweeps it rests in the middle of the rear screen.

If I use the rear was/wipe, the wiper does it's 3 or four 'there-and-backs' and comes to rest where it's supposed to, so why won't the normal wipe do that?

I've swapped the motor for another (used) one and it does the same thing.
The chaps at the local GSF swapped the relay (well they said it was the right one) and that didn't fix it (they didn't charge me either.)

Any ideas? :?: :idea:
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Re: Electrical gurus

Postby Doive » 17 Mar 2005, 15:45

ChevetteCharlie wrote:On my MkII Golf (sorry!)

Don't be! Great cars.

Well this could be a number of things. One suggestion was the park switch, which activates when the wiper is in the upright position (if I recall correctly from the mk2). However, you have replaced the motor so this will probably have replaced this as well, and the wiper parks properly on a wash cycle. Strange.

I'm guessing your motor will have three wires going to it - neutral, switched live and permanent live. When you switch on the wiper this will activate the relay, which will latch and send the signal to the wiper motor(I may be wrong about the sequence of connection here as I'm thinking of a different car, so change as appropriate). The signal is applied for as long as the switch is on for. Once you switch it off, the permanent live comes into action and brings the wiper into the park position if it isn't there already. Some cars make use of a timed sequence rather than a park switch to park the wiper, and for this they use a control box. This controller can malfunction and cause problems as you describe, so see if your car has one and get it checked out. The only way to test this properly is to get one you know works and plug it in.

From what I remember this was a common fault on the mk1 and mk2 golfs, so presumably they used the same controller for both models. I could of course be fairly wide of the mark, the best bet would be to drop in with either a VW specialist or a main dealer and have a chat with the service manager. Hope some of this is at least slightly relevant.
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Postby shuvit-tim » 17 Mar 2005, 16:09

if it is a common fault drop a lin einto one of the VW forums and they'll know the problem right away
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby ChevetteCharlie » 18 Mar 2005, 09:56

Cheers guys.

I did try a couple of VW forums but all they suggested was:
a) change it for a lay flat one, they are so much cooler...
b) it's seized up, grease it.

Not in the same calibre as the advice dished out on this forum!
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Have owned: Bright Copper Metallic, L Saloon. Glacier Blue, GLS Hatchback. Quality Street Green Triangle, GL Saloon.
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Postby shuvit-tim » 18 Mar 2005, 13:45

sounds like you found a ned forum. Leave it with me, I know a knowledgable VW god through novadrive, i'll give him a buzz and ask him
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby Guest » 18 Mar 2005, 17:06

Nice one, cheers Tim.
Of course, with Spring arrivng with us I shouldn't need the wipers again until November... :lol:
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Postby Guest » 18 Mar 2005, 17:07

Dammit, it's done it again!
It wasn't a guest, it was me!
I'll never catch up with Tim's posts at this rate! :roll:

Neily Edit.......Try logging in before you post! :wink: :lol:
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Postby shuvit-tim » 18 Mar 2005, 18:21

reply from SciroccoSteve @novadrive.com:

right - Can you tell us what the age and type (GTi etc) of mark 2 it is?

As per the suggestions, I would have said have already been posted I will go a bit more off the beaten track - If it is on the earlier thin stalks these have been known to play up and cause wipers to stop mid swing. It is a new one on me for it to go further (ie come back up - but hey its german anythings possible). try checking the connections on the wiper arm? - I will have a word with Carl at only vw
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby ChevetteCharlie » 21 Mar 2005, 14:30

Neily you cheeky so and so, I can assure you that after several years of posting I know I need to sign in! :roll:

Thanks Tim.
The car's an H reg 1.6 Driver.
I don't think they're 'thin' stalks.
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Have owned: Bright Copper Metallic, L Saloon. Glacier Blue, GLS Hatchback. Quality Street Green Triangle, GL Saloon.
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