Technical characteristics of the lubrication system (VW Passat B2)

All engine models have a pressure lubrication system. Under vacuum, oil is sucked through the mesh filter of the oil receiver from the oil sump and is pumped by an internal gear oil pump mounted on the nose of the crankshaft into the oil filter. Purified oil is supplied to the main bearings of the crankshaft, to the connecting rod bearings and through channels in the cylinder head - to the camshaft bearings.

Oil pump

The gear-type oil pump with internal gears is driven directly by two projections on the crankshaft. A pressure-reducing valve is installed on the right side of the oil pump cover, which is also the holder of the front crankshaft seal.

Oil pressure in the system at oil temperature of 80°C, kg/cm²:

• at idle: 0.15-0.45;
• at crankshaft speed of 2000 rpm: 2.0 (at a lower value, the oil pressure indicator lamp in the instrument cluster lights up).

Pressure reducing valve response pressure, kg/cm²: 5.3-6.3.

Oil filter

The oil filter with a replaceable filter element is connected in series with the main oil line of the engine.

Brand and type of oil filter element: Mann C 719-5.

Motor oil

Lubrication system capacity, l: 4.5 (including 0.5 l in the oil filter).

Used oil: SAE 5W20, 10W40, 15W50, 20W40; by API SE.

Oil change frequency: every 15,000 km.