Cooling circuit Coolant circulation (coolant) in the engine is controlled by a thermostat. While the engine is cold, the coolant circulates only in the cylinder head and in...
Cooling system — check Using a simple tester, you can check the operation of the safety valve in the cover and check the system for leaks. Warm up the engine to operating temperature...
Thermostat — removal, installation and inspection M51 series engine thermostat 4 - thermostat housing; 5 — a bolt for removal of air; 6 - thermostat; 7 - sealing ring; 10 — a bolt with a six-sided head. M52...
Fan/Fan Clutch — Removal and Installation The viscous fan clutch must be replaced when the hub is pitted. The fan should not turn or will turn with great difficulty. The clutch is also replaced when...
Expansion tank — removal and installation Remove the upper part, pull the expansion tank up. Late car models Withdrawal Remove the expansion tank cap. Attention: When the engine is hot, cover it with a...
Radiator — removal and installation After a long car run, the thin channels in the radiator become clogged with coolant deposits and lime deposits. As a result, the cooling efficiency decreases...
Water pump — removal and installation The water pump is driven by a V-ribbed belt. A fan is spun on the water pump shaft ahead. Elements of the water pump of the M30 engine 1 - water pump; 2 -...
Coolant Hoses — Emergency Service and Repair Coolant hoses are probably the most neglected component of any car part. However, careless owners are extremely surprised when a hose breaks or otherwise...