Heated Seat only works if really cold
Thread Starter
Junior Member
Joined: May 2017
Posts: 41
Likes: 2
From: Long Island, NY
2014 ML350 4MATIC
Heated Seat only works if really cold
My driver side heated seat only works if the car is rather cold… like less than 40F. And when it doesn’t work, you push the dash button and no red lights come on at all.
Passenger side works fine, 100% of the time.
is there a thermal sensor, that is possibly out of spec, and unless it’s very cold it doesn’t allow the heated seat to turn ON…?
Passenger side works fine, 100% of the time.
is there a thermal sensor, that is possibly out of spec, and unless it’s very cold it doesn’t allow the heated seat to turn ON…?
Out Of Control!!
Joined: Apr 2019
Posts: 12,000
Likes: 6,827
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
No Seat Heat...
My driver side heated seat only works if the car is rather cold… like less than 40F. And when it doesn’t work, you push the dash button and no red lights come on at all.
Passenger side works fine, 100% of the time.
is there a thermal sensor, that is possibly out of spec, and unless it’s very cold it doesn’t allow the heated seat to turn ON…?
Passenger side works fine, 100% of the time.
is there a thermal sensor, that is possibly out of spec, and unless it’s very cold it doesn’t allow the heated seat to turn ON…?
Use a OBDII Scanner to read your chassis faults.
You can have issue with..
lower control pannel
seat control module
heater resistor or harness
The scanner will make this a no brainer...
