300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993)
Control Module HVAC: Service and Repair
Rear Electronic Blower Controller
Armrest
Fold up.
Cover above rear air conditioner
Remove.
Plug connection N29/2 X 1
Disconnect.
Electronic blower controller N29/2
Remove (screw, arrow).
Electrical cables
Detach from blower motor.
Install
In reverse sequence, perform function check.