Demister

Deanc · 17th February 2018, 08:30

My rear demester has stopped working on my ztt is this a common fault

brianw · 17th February 2018, 09:33

I am not sure if it is a common fault but on my other halfs 75 hers stopped working a while ago.
After checking fuses i swapped her demister relay in the underbonnet fusebox with the one out of my car.
Borh demisters then worked so I assume that the removal replacing of the relay cleaned up the contacts.
Might be worth a try.

impvan · 17th February 2018, 12:31

Common fault. Mine only had two wires working when I got it, and they died pretty soon. I've seen another tourer with the same problem too.

It looks to me like the rubber seal on the tailgate glass gives off some sort of corrosive product, and it attacks the ends of the copper traces.

COLVERT · 18th February 2018, 21:06

If it's scratched I think there is a metallic repair paint you can use to get it working again.

17th February 2018, 08:30	#1
Deanc Newbie Mgzt t Join Date: Oct 2012 Location: Richmond north yorks Posts: 13 Thanks: 1 Thanked 0 Times in 0 Posts	Demister My rear demester has stopped working on my ztt is this a common fault

17th February 2018, 09:33	#2
brianw Gets stuck in Rover 75 CDT Connoisseur SE Rover 75 1.8 Auto Connie Join Date: Nov 2011 Location: Aldershot Posts: 927 Thanks: 126 Thanked 119 Times in 79 Posts	I am not sure if it is a common fault but on my other halfs 75 hers stopped working a while ago. After checking fuses i swapped her demister relay in the underbonnet fusebox with the one out of my car. Borh demisters then worked so I assume that the removal replacing of the relay cleaned up the contacts. Might be worth a try.

17th February 2018, 12:31	#3
impvan Avid contributor ZT-T Join Date: Aug 2012 Location: In the trees, near Caernarfon... and frequently Aberdeenshire, and sometimes Romania.. Posts: 143 Thanks: 5 Thanked 36 Times in 29 Posts	Common fault. Mine only had two wires working when I got it, and they died pretty soon. I've seen another tourer with the same problem too. It looks to me like the rubber seal on the tailgate glass gives off some sort of corrosive product, and it attacks the ends of the copper traces.

18th February 2018, 21:06	#4
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	If it's scratched I think there is a metallic repair paint you can use to get it working again.