S 55 AMG (220.173) V8-5.5L (113.982) (2001)
Auxiliary Water Pump: Locations
Recirculation Pump
Recirculation Pump
The circulation pump (A6m1) is secured to the combustion air housing (2) of the STH or heater booster heater unit (A6) with a retainer (1) and
connected directly to the coolant inlet via a coolant hose (3).