Engine cooling and lubrication system BMW 5 Series E12
Lubrication system specifications Engines of all modifications have a pressure lubrication system. Oil Pump - Rotary, excluding BMW «520» from model year 1978 and «520i» since the 1982 model...
Cooling system specifications The cooling system is liquid, with forced circulation of liquid by means of a centrifugal pump. On car models «525» And «528» an expansion tank is installed...
Removal and installation of an oil crankcase Withdrawal Put the car on a viewing ditch or lift. Drain engine oil completely. Remove the anti-roll bar. Turn away bolts of fastening and remove it, having...
Removal and installation of the oil pump Withdrawal Remove the oil pan to access the oil pump. Remove the oil pump drive sprocket, unscrew the bolts securing the pump housing and the brackets securing...
The main parts of the oil pump The main parts of the oil pump: 1 - drive sprocket; 3 - gaskets for adjusting the tension of the drive chain; 19 - outer rotor; 20 - inner rotor; 24 - pressure...
Dismantling and checking the oil pump Disassembly Remove plug 1, spring 2 and plunger 3 of the pressure reducing valve. Remove cover 4 of the oil pump. Rinse and blow out the oil pump parts with...
Oil filter The oil filter is full-flow, connected in series to the main oil line. Depending on the car model, it is made in the form of a removable filter element or has...
Assembly and installation of the oil pump The oil pump is assembled in the reverse order of disassembly. In this case, it is necessary to check the gaps between the outer rotor and the oil pump housing...
Parts of the engine cooling system Details of the engine cooling system for vehicles with a manual transmission: 1 - radiator; 2 - plug with a safety valve; 3 - water pump assembly; 4 -...
Water pump for BMW «518», «520» Removing the water pump Disconnect the wire from the negative battery terminal. Unscrew the radiator filler plug and open the valve of the body interior heater...
Water pump for BMW «525», «528» Removal and installation of the water pump Disconnect the wire from the terminal «—» battery, drain the cooling system. Remove the radiator. On automatic...
Drive Belt Tension Adjustment Normal deflection when pressing with your thumb on the branch between the generator and fan pulleys for the generator drive belt and when pressing with your...
Filling the cooling system For models «518», «520», on which the engine cooling system does not have an expansion tank, no special precautions are required when filling the system. In...