S 420 (140.043) V8-4.2L (119.981) (1996)
Control Module HVAC: Locations
Blower Regulator
The blower regulator (A32n1) is located at the right rear in the engine compartment behind the dust filter.
The blower regulator for the rear air conditioning (N29/2) (if equipped) is located in the rear air conditioning housing below the armrest.