Car engine lubrication system BMW 3 Series E30

Engine lubrication system
Purpose of motor oil During operation, engine oil is subject to the most uniform effects. Therefore, it is very difficult to accurately determine the effect of...

Lubrication circuit
The figure shows a four-cylinder M10 engine. Oil pump "3" takes oil through oil intake "6" from oil sump "4" and supplies it to the main oil filter. At the...

Checking oil pressure
Warm up the engine. The operating oil temperature should be about 80°. Check the oil level. Disconnect the electrical wire from the oil pressure switch "1" and...

Removal and installation the lower oil pan cover
Four-cylinder engine Removal Disconnect the ground wire from the battery. 316i models from September 1988 and 318i models from September 1987: Release both...

Removal and installation the oil pump
Four-cylinder engine Removal Remove the lower part of the oil pan. Loosen the drive chain sprocket mounting nut and remove the sprocket. Remove the mounting...

Removal and installation the oil pan and oil pump
Six-cylinder engine Removal Disconnect the ground wire from the battery. Raise the car. On vehicles produced since September 1984, unscrew the reinforcing...

Checking the oil pump
Six-cylinder engine Remove the oil pump. Remove cover "1" of the oil intake. Pull out the mesh "2" and wash it in fuel. Turn the drive shaft and check the ease...

Maintenance work on the engine lubrication system
Engine oil change The oil is changed according to the service interval indicator on the dashboard or every 10,000 km once a year. With a small annual mileage,...

Resetting the Service Interval Indicator
The service interval indicator on the dashboard is controlled by a microprocessor, which takes into account not only the loads to which the vehicle is...

Diagnostics of engine lubrication system faults

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