R129 Heated seat issue

[drivebyabuser]

Only the back of the seat gets hot on my SL500. Its a MY2000.
The Passenger seat works fine, but the base of the drivers seat stays cold while the back gets warm. Any ideas?

 

[Hawkwind]

Sounds like there will be a break in the wiring somewhere, or something unplugged.

Have a good poke around underneath the seat, see what you can find and try tracing the wiring.

 

[drivebyabuser]

Thanks - I planned to take the seat out in the next few days.

 

[BTB 500]

It's worth having a poke around but very likely the seat pad has gone ... they fail due to wear and tear (not specific to the R129 - heated seats in general). Obviously the passenger seat is used less, and the backrests take less load than the seat bases.

 

[drivebyabuser]

It's worth having a poke around but very likely the seat pad has gone ... they fail due to wear and tear (not specific to the R129 - heated seats in general). Obviously the passenger seat is used less, and the backrests take less load than the seat bases.

That was my fear - Is a seat pad possible to replace or is it just easier to get a new seat from a breakers?

 

[Doodle]

Seat pad can be replaced but I believe replacements are in short supply, possibly even NLA.

 

[Hawkwind]

It might be possible to replace the original heating pads with after market pads.

 

[drivebyabuser]

Heard back from MB parts. The heated seat and the sensor for the seatbelt is the same thing. £199 + Vat from them. Special order but available