Heated seat problem

[m2287]

The heated seat has been broken on my CL for a while so I bought some heater pads to retrofit.

I have fitted the pads and just need to wire them up but this is where I've gotten stuck!

I have taken the control panel from the bottom of the seat and it appears that plug number 8 controls the heated seat:

The cables going into the plug are coloured:

Red/green Red/yellow Green/black
Brown/white. Brown/purple. Brown

I used a multimeter to measure the voltage on each cable when the heated seat button is pressed but none of the voltages change!!!

Where am I meant to wire the positive and negative from my heat mats too?!

 

[Bizonscunny]

Are u sure that old heat pad is faulty. This may be relay related issue. I had similar problem on other car. Worth checking before anything else as the replacement was cheap.

 

[m2287]

Are u sure that old heat pad is faulty. This may be relay related issue. I had similar problem on other car. Worth checking before anything else as the replacement was cheap.

Well star said the heated seat was faulty or something and both the seat base and seat back don't work... The passenger side works fine

 

[Bizonscunny]

Well star said the heated seat was faulty or something and both the seat base and seat back don't work... The passenger side works fine

I meant specific seat relay, not the main one.

 

[m2287]

I meant specific seat relay, not the main one.

I can't find a seat relay anywhere !!!

 

[whitenemesis]

If both base and back don't work I'd be looking at anything common to both. Unusual for both pads to fail..

 

[m2287]

I should have said they have never worked in the 5years I've had the car... I Managed to find the connections and it all works perfectly with the new mats .

 

[C43AMG]

My S-Class drivers seat both back and seat have packed up. While at Olly's last week they checked it on the Star, a new one is needed. Just for the seat part over £800

Would your system work on the S-Class ?

 

[CaptainRAVE]

It is embarrassing how many of these stop working. Luckily mine still work, but there is a huge thread on just the SLK forums alone.

 

[m2287]

It will work on pretty much any car, £20 for two pads off eBay and it takes an hour and a half tops..

 

[m2287]

C43AMG, SEE:

CL heated seat - Mercedes-Benz Owners' Forums

And post 15:

Mercedes-Benz Owners' Forums

 

[AMGeed]

It will work on pretty much any car, £20 for two pads off eBay and it takes an hour and a half tops..

Want to sort mine out? I'll pay you:bannana:
They haven't worked since I bought the car and I quite fancy having a warm ar$e while driving.

 

[m2287]

Want to sort mine out? I'll pay you:bannana:
They haven't worked since I bought the car and I quite fancy having a warm ar$e while driving.

Honestly they are so easy.

take the seat out of the car, take the back apart so you can take the leather off, stick the new mat in position, find the heated seat cable for your original mat, splice into this and solder your new mat to your original cable, repeat for the seat base, put it back together and enjoy a warm bum!

 

[m2287]

Some pictures to make it easier:

This shows when the plastic seat cover is removed, there are metal clips holding the material, unclip these then at the bottom of the seat the material sort of folds over into the slot

This shows the metal clips holding The leather to the seat, these are a bit fiddly and I didn't put the middle one back on, you can't notice now all the seat is back together anyway

And this shows what the original cable for the heated seat will look like:

Not the best pictures (edited in my iPad with my daughters doodle app and then print screened!!!) but it might help a bit!

 

[AMGeed]

Thanks a lot for those pics. I've bookmarked that post for future reference!

 

[m2287]

http://pages.ebay.com/link/?nav=item.view&alt=web&id=400829865397

A link for the mats, you don't need any of the wiring, just the 2 pads. Just buy them now and then when they arrive you will think **** it, I may as well fit them... That's pretty much what I did and it's the best £20 I've spent in a long time!

 

[AMGeed]

You have persuaded me now!

Thanks

 

[m2287]

You have persuaded me now!

Thanks

Post up when they are done :bannana::bannana::bannana: