Weak/slow heated rear windscreen - any ideas? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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JayGemson

Member

Registered: 1st Mar 04
Location: Surrey/Hants Drives: Audi TT Quattro 225
User status: Offline

17th Jan 06 at 14:31

Hi everyone, long time no post! I used to come here quite a bit when I had my silver GSi, I check back every now and again but now I need some help...

My new girlfriend has a 1997 Corsa Sting, 5-door. The heated rear screen has become pretty weak and takes AGES to demist. I've checked the fuse and relay which both seem fine and by going across the terminals on the window it's getting about 10.5V. Is that right?

Is there an achilles heal on the rear screens that cause them to do this, like a standard place that the wire breaks or a weak relay?

Cheers in advance

Jay

corsatpot

Member

Registered: 4th Jul 05
Location: Kent
User status: Offline

17th Jan 06 at 14:32

Yeah mines suddenly doing this!! wudnt mind knowing myself!

Member

Registered: 10th Sep 03
User status: Offline

17th Jan 06 at 14:33

Will more than likely be a bad earth if it's running on low volts. If it's not that then it could be the battery or alternator is on it's way out...

ainsley_brader

Member

Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline

17th Jan 06 at 21:12

try cleaning the actual window. Grease on the rear window wil cause this

JayGemson

Member

Registered: 1st Mar 04
Location: Surrey/Hants Drives: Audi TT Quattro 225
User status: Offline

18th Jan 06 at 08:37

Hard to believe, but I'll try cleaning the window properly. I'll also check the earth.

mitch2

Member

Registered: 14th Nov 05
User status: Offline

18th Jan 06 at 12:39

It could be that moisture is getting inside the car. It will take longer to clear if both sides of the glass are misted up. The thing it could be is if some of the strips on the window are damaged. This can cause the back window to clear at the bottom but not at the top or visa versa. You can get special paint to rejoin the strips. Hope this helps.

JayGemson

Member

Registered: 1st Mar 04
Location: Surrey/Hants Drives: Audi TT Quattro 225
User status: Offline

18th Jan 06 at 12:41

Cheers mitch2. Seems all the strips are working, just very slowly but I'll check them all for minor breaks.

Can anyone confirm if the glass should be getting the full 12V or if 10.5V is right?

broster

Premium Member