Description of engine OM 607
Drive
57
b
Introduction of the New A-Class, Model Series 176
Cooling system and coolant circuit
In diesel engine OM 607 a toothed belt is used to
drive the coolant pump.
The coolant circuit cools the engine, engine oil –
coolant heat exchanger and exhaust heat
exchanger.
P20.00-2448-00
Coolant circuit, schematic
1 Engine radiator
2 Exhaust gas recirculation cooler
3 Engine oil – Coolant heat exchanger
4 Coolant expansion reservoir
5 Thermostat
6 Heater heat exchanger
7 Coolant pump
8 Restrictor
M13/5 Residual heat pump (with code (581) Comfort
automatic air conditioning and code (228)
Stationary heater)
R22/1 DPF heater booster regeneration
A
Low temperature cooling circuit
B
High-temperature cooling circuit
C
Coolant circuit ventilation
– This printout will not be recorded by the update service. Status: 06 / 2012 –