560SL (107.048) V8-5.6L (117.967) (1989)
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Auxiliary Water Pump: Description and Operation
Monovalve (11) Recirculating Pump (30)
The recirculating pump (30) serves to maintain a uniform coolant flow through the heat exchanger even at low engine speeds. During control operation,
the pump is switched on by the signal "legroom flaps open". Electric activation is by way of the control unit.
