Technical rear demister!!

[IanLF]

Ok so ive read the other posts about rear demister not working but they dont seem to help me much.
When i put the rear demister on the light on the buttom comes on but the window does not demist. ive checked all the conectors and they all seem fine. ive checked the fuse and it is fine. what else could it be.

Please help this weather is killing me.

Thanks Ian

 

[Benny 1992]

Ok so ive read the other posts about rear demister not working but they dont seem to help me much.
When i put the rear demister on the light on the buttom comes on but the window does not demist. ive checked all the conectors and they all seem fine. ive checked the fuse and it is fine. what else could it be.

Please help this weather is killing me.

Thanks Ian

the heat element maybe shot

 

[IanLF]

ok so where is that? how do i know if it is? and how do i change it?

Thanks Ian

 

[xander_trippin]

the element on the glass can get damaged. check for any gaps in the element as this causes it not to de mist past the damaged part. You can get special conductive paint to repair the join.

http://cgi.ebay.co.uk/REAR-DEMISTER...al_Components_Supplies_ET&hash=item19c1e19257

just mask above and below area and fill with paint

 

[Benny 1992]

i'm not sure m8 but some 1 on here may know, hav a look in haynes if u got 1

 

[IanLF]

Haynes manual is poo doesn't say anything about rear demister. I will check that out tomorrow if it isn't that what else may it be?

 

[rallycinq]

Get a test lamp and work from the rear connectors to earth to check for a supply.

Chers

D

 

[MadMan0]

i have 1 bar not working on a mk1 rear window, was thinking about soldering it to fix it. However the temp out side would - i think - smash the window if i use hot solder

2nd option i've found that i have, is to test each heater element one by one using some copper wire, omh meter & battery. - to find where the break is - if there is one

Once a break has been found, you can decide the best way to repair it, i.e if it's not accessable then mabey a new window with a heat element already fitted?

My budjet is £0.00 so i have been finding the cheepest fixes that do the job as good as a garage repair


A little off topic, i took my car to the garage to see if they would do the HG - the skimming part has put me off as i do not know where to send it etc etc.
They said changing the HG would be a waste of money as it doesn't need to be changed Given the fact the car is running so well and starting in the cold (-17'c) at the first turn of the key, the car is not needing any work to keep it going I've never had 1st hand exp with a garage that won't do a job.... - it's not like i wasn't going to pay them

 

[david295]

ok so where is that? how do i know if it is? and how do i change it?

Thanks Ian

use a mutitester, put 1 wire from mutitester on 1 contact and the other wire on other contact, if the circuit is complete, then listen for relay clicking when u swith on demister

 

[colinf1]

my demister doesnt work either...i really should have tried to fix it before i tinted the windows!

usually the heater on max and on window demist setting clears mine, but does take a few mins...

 

[rallycinq]

The usual culprit is the connector pin in the tailgate, make sure its still mobile and not jammed in with excess heat.

Cheers

D