8-valve car engine cooling system Volkswagen Passat B4

Features of the cooling system device
The engines use a liquid cooling system with forced circulation. The cooling system includes an aluminum radiator, expansion tank, water pump, thermostat and electric fan. An...

Coolant replacement
During operation, the coolant does not require replacement. Only an annual fluid level check is required. If it is necessary to replace the coolant, perform the following...

Removal, disassembly and assembly of the water pump
To remove and install the water pump, drain the liquid from the cooling system. Disconnect the wire from the negative battery terminal. Remove generator. Disconnect hoses from...

Checking the cooling system
To check the tightness of the system, install the VW 1274 tester on the expansion tank. Using the device, create an excess pressure of 1 kgf / cm 3 in the cooling system 2 . If...

Features of the lubrication system device
All models have a pressure lubrication system. Oil is sucked in from the engine crankcase through the oil receiver strainer and pumped by the gear oil pump into the oil filter....

Removing, disassembling, checking the technical condition and assembling the oil pump
Remove the two bolts securing the oil pump cover to the housing. Separate the cover from the body. Remove drive shaft and oil pump drive gear. Wash the pump housing with gasoline....

Maintenance of the lubrication system
Check the oil level of the lubrication system every 500 km of the car or before a long trip. Check to make on the cold engine or in some minutes after a stop of the engine, having...

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