S80 heated seats

Inglewood · Oct 5th, 2020, 19:48

Hi, just bought a S80 2007 model and the drivers heated seat seems pretty ineffective (even on 3 orange lights) - do the seats have a heater element that wears out and could be replaced as they are definitely not warm and more like like warm. Passenger seat seems ok ish.

Kev0607 · Oct 5th, 2020, 21:40

There's a heater module underneath the seat, as pictured on this thread on another forum. Check that the wiring going into the module is secure & also check the condition of it (You shouldn't see charred wires for example).

https://forums.swedespeed.com/showth...Issues-Related

This video may also help. Its of an older car, but the process is more or less the same.

https://www.youtube.com/watch?v=9t8FL989BoA

Inglewood · Oct 6th, 2020, 18:12

Thank you for the help so far - any cost effective places anyone can recommend for me to replace this heater module as I am guessing new ones are expensive and I am more than happy with old ones taken out of a car being broken for spares?

What’s the likelihood of the failure being the module or the elements inside the seats (this would mean I guess taking the leather off the seat to ‘fix’ the element and sounds expensive!

apersson850 · Oct 8th, 2020, 15:51

The heating elements in the seats tend to either work or break. Not anywhere in between. Power control is via pulse width modulation, i.e. the controller sends current all the time for full power, but pulses on/off at a specific relation for reduced power levels.

Replacing elements isn't too difficult. I've done it a couple of times on other cars. But if you get any heat at all, they aren't likely the problem. You can measure their resistance and compare with the other side, if you like.

You could have a problem with the thermostat.

Paul Wildsmith · Oct 8th, 2020, 18:14

one possibility is that there may be different settings for the heater which can be set by a dealer. At least you can for the ventilated seat settings, as I had those 'turned up' on my 2009 S80.

Oak · Oct 9th, 2020, 14:20

As Paul's just said, I believe you can turn up the heat in VIDA.

Standard disclaimer obviously applies, but different markets have different heat settings. What's cold to us might not be cold to Sweden. Having stayed there one Christmas...I had a new appreciation for "it's quite cold outside".

https://forums.swedespeed.com/showth...%2D1%2C%20%2D2.

Inglewood · Oct 12th, 2020, 17:27

Which thermostat do you mean please ?

Oct 5th, 2020, 19:48	#1
Inglewood Junior Member Last Online: Oct 12th, 2021 09:59 Join Date: Aug 2010 Location: Farnham	S80 heated seats Hi, just bought a S80 2007 model and the drivers heated seat seems pretty ineffective (even on 3 orange lights) - do the seats have a heater element that wears out and could be replaced as they are definitely not warm and more like like warm. Passenger seat seems ok ish. __________________ Many thanks Mark

Oct 5th, 2020, 21:40	#2
Kev0607 Premier Member Last Online: Today 00:14 Join Date: Apr 2019 Location: Manchester	There's a heater module underneath the seat, as pictured on this thread on another forum. Check that the wiring going into the module is secure & also check the condition of it (You shouldn't see charred wires for example). https://forums.swedespeed.com/showth...Issues-Related This video may also help. Its of an older car, but the process is more or less the same. https://www.youtube.com/watch?v=9t8FL989BoA __________________ 2007 S80 2.4 D5 (P3 chassis) - 110,000 miles 2008 V70 2.4 D5 (P3 chassis) - 163,000 miles Last edited by Kev0607; Oct 5th, 2020 at 21:42.

Oct 6th, 2020, 18:12	#3
Inglewood Junior Member Last Online: Oct 12th, 2021 09:59 Join Date: Aug 2010 Location: Farnham	Thank you for the help so far - any cost effective places anyone can recommend for me to replace this heater module as I am guessing new ones are expensive and I am more than happy with old ones taken out of a car being broken for spares? What’s the likelihood of the failure being the module or the elements inside the seats (this would mean I guess taking the leather off the seat to ‘fix’ the element and sounds expensive! __________________ Many thanks Mark

Oct 8th, 2020, 18:14	#5
Paul Wildsmith Register Keeper Last Online: Yesterday 17:46 Join Date: Dec 2001 Location: Bristol	one possibility is that there may be different settings for the heater which can be set by a dealer. At least you can for the ventilated seat settings, as I had those 'turned up' on my 2009 S80. __________________ Paul VOC 90's SPARK

Oct 9th, 2020, 14:20	#6
Oak Member Last Online: Apr 10th, 2024 11:16 Join Date: Apr 2013 Location: Near Bristol	As Paul's just said, I believe you can turn up the heat in VIDA. Standard disclaimer obviously applies, but different markets have different heat settings. What's cold to us might not be cold to Sweden. Having stayed there one Christmas...I had a new appreciation for "it's quite cold outside". https://forums.swedespeed.com/showth...%2D1%2C%20%2D2. __________________ SOLD - V70 D5 Auto 185 Sport SE MY2008 SOLD - V50 1.8 Manual R Design MY2009

Oct 8th, 2020, 15:51	#4
apersson850 Premier Member Last Online: May 24th, 2024 10:16 Join Date: Jul 2011 Location: Traryd View Photos By: apersson850	The heating elements in the seats tend to either work or break. Not anywhere in between. Power control is via pulse width modulation, i.e. the controller sends current all the time for full power, but pulses on/off at a specific relation for reduced power levels. Replacing elements isn't too difficult. I've done it a couple of times on other cars. But if you get any heat at all, they aren't likely the problem. You can measure their resistance and compare with the other side, if you like. You could have a problem with the thermostat.

Oct 12th, 2020, 17:27	#7
Inglewood Junior Member Last Online: Oct 12th, 2021 09:59 Join Date: Aug 2010 Location: Farnham	Which thermostat do you mean please ? __________________ Many thanks Mark

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