06-10-2011, 10:45 AM
|
Senior Member
|
|
Join Date: Nov 2002
Posts: 832
|
|
power for the heater comes from the mas relay. it needs orders from the ecu to turn on the heater.
http://www.w124performance.com/service/W126/w126CD1/program/ETM/126from86.pdf
good luck, chuck.
|