SL/R129: Passenger Side Bench Seat Heater Not Working
#1
MBWorld Fanatic!
Thread Starter
Passenger Side Bench Seat Heater Not Working
Where would I start to try to fix this myself?
Is there a fuse for the bench alone? The back works.
Is there a weak point in the wiring?
Does the element eventually burn out?
Is there a fuse for the bench alone? The back works.
Is there a weak point in the wiring?
Does the element eventually burn out?
#2
MBWorld Fanatic!
Thread Starter
After some Google research:
- I note that the switch lights (1) or (2) both light up.
- I note that the yellow wiring connection at the back of the seat is plugged in.
- I think I can feel heat coming from both bolsters. But not the interior seat cushion.
- I note that the switch lights (1) or (2) both light up.
- I note that the yellow wiring connection at the back of the seat is plugged in.
- I think I can feel heat coming from both bolsters. But not the interior seat cushion.
Last edited by ChrisB; 11-15-2020 at 01:46 PM.
#3
Super Member
The yellow connector isn't for the seat heaters.
Pull the seat cushion (two screws) and inspect the 2 seat heater connections by independently applying power to the separate heaters and see what works.
Yes, the heating elements (fine wires) are somewhat fragile.
Pull the seat cushion (two screws) and inspect the 2 seat heater connections by independently applying power to the separate heaters and see what works.
Yes, the heating elements (fine wires) are somewhat fragile.
#4
MBWorld Fanatic!
Thread Starter
I found someone who posted that they switched a bolster wire to the inner seat wire to improve.
His broken wire must have been upstream of the elements.
Another fellow located a break in his bolster wire and soldered it back together.
His broken wire must have been upstream of the elements.
Another fellow located a break in his bolster wire and soldered it back together.