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Heated seat burning hole!!!

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walsie

Member Since: 03 Jul 2015
Location: wrexham
Posts: 102

2005 Discovery 3 TDV6 HSE Auto Java Black

Heated seat burning hole!!!

Decided to investigate why my drivers heated seat has stopped working. Got the seat pad off and disconnected the wires. I started to peel back the seat cover working my way around the edges first and came across a section which looked burnt. Poked around with my finger and found 2 ends of a wire which were clearly once connected. There's no insulation on this wire. Anyway, it looks like at this point over time the wire has been coming into contact with the metal tray of the seat and shorted? That's all I can think has happened. So as a quick test I just twisted the ends together to see what would happen. To my surprise the cable got so hot that it started to melt the fabric around it.

Any ideas what's happening here? It was so hot I couldn't touch it.

21st Jan 2017 9:06 pm

disco4ever

Member Since: 23 Dec 2013
Location: under the car
Posts: 402

2012 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini Black

be happy, you were not sitting on it whilst tryin it out

I am not too electric tric trick but amperage must be too high. Mine is almost burning a hole in the leather before it comes down in temperature after a fresh start

your post scares me I still need my B

s Achim

own garage certified LR tech

Disco 2 TD5 MY 2001 - gone but still driven by another owner
Defender 110 TD5 driving me bananas with all faults
Disco 3 TDV 6 HSE MY 2005 gone @280.000 km
Disco 4 SDV 6 HSE MY 2012

21st Jan 2017 9:46 pm

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti Grey

Very common, try a search on here, you will have plenty of hits

22nd Jan 2017 7:05 am

walsie

Member Since: 03 Jul 2015
Location: wrexham
Posts: 102

I've figured this out. What's happened is that over time the foam seat pad has compressed on the side nearest the door and eventually the heating element wire has come into contact with the metal base pan of the seat, shorting out and breaking the wire. When I removed the seat base and peeled back the leather cover the problem was obvious, scorched foam and broken wire. Without thinking I just twisted the two ends of the wire together to test if the heater element still worked. This caused too much resistance at that very spot so it over heated. I did a proper fix with a crimp connector and all was well again. Temporary fix until I can get a new element. Anyone know where I can get one?

I also noticed that where the 4 fixing points are underneath the seat, they were all cracked which explains why there is a gap between the seat base and backrest. Anyone know of a seat or seat base going for salvage?

22nd Jan 2017 4:40 pm

Discologist

Member Since: 19 May 2014
Location: Yorkshire
Posts: 537

2013 Discovery 4 3.0 SDV6 HSE Auto Orkney Grey

Walsie wrote:
I also noticed that where the 4 fixing points are underneath the seat, they were all cracked which explains why there is a gap between the seat base and backrest.

Interesting. That may explain the similar gap on mine. I must investigate.

22nd Jan 2017 11:14 pm

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