Car engine cooling system BMW 5 Series E39

Coolant circulation
Coolant circulation is controlled by a thermostat. While the engine is cold, the coolant circulates only in the cylinder head, as well as in the cylinder block...

Checking the cooling system
Leaks in the cooling system and the operation of the steam-air valve in the cap of the expansion tank can be checked using a standard instrument. Warm up the...

Removing and installing / checking the thermostat
When the engine temperature rises, the thermostat opens the large coolant circuit. If the thermostat remains closed as a result of a malfunction, the engine...

Removal and installation of the fan / fan clutch
The fan clutch must be replaced when the hub has worn out. In this case, when the engine is not running, the fan does not rotate or rotates with difficulty....

Removal and installation of a broad tank
Models 520i, 523i, 528i Withdrawal Remove expansion tank cap. Attention: When the engine is hot, before opening the cap of the expansion tank, in order to...

Removal and installation of a radiator
After a long vehicle mileage, the narrow internal channels of the radiator can become clogged with coolant deposits and salt deposits. As a result, the cooling...

Removal and installation of the pump of a cooling liquid
The coolant pump is driven by a V-ribbed belt. A radiator fan is bolted to the front of the coolant pump shaft. Withdrawal Drain coolant, see section "...

Diagnosis of malfunctions of the cooling system
Malfunction: coolant temperature is too high, the arrow of the temperature gauge is in the danger zone.