Vehicle engine lubrication system Audi 80 B3

Engine oil change
Depending on the operating conditions, motor oils are subject to frequent, changing loads. Therefore, it is very important to accurately determine the effect...

Dilution of oil in gasoline engines
If an over-rich mixture gets into the cylinders, the engine rarely runs at full power or does not have time to warm up while driving (in urban conditions), and...

Viscosity of motor oil
Depending on the temperature, the viscosity of the oil changes. As the temperature increases, it becomes more liquid. The strength of the oil film...

All-season oil
All-season oils are used for AUDI engines. They have the advantage that they can be used in both winter and summer. All-season oils are based on seasonal oil...

Low-friction oil (Multi-season oil with anti-friction additives)
Easy-flowing oils are all-season oils that, among other things, contain additives that reduce friction, which makes it possible to save up to 2% of gasoline....

Applications/Viscosity classes
A - For high power and easy flowing oils (all-season with anti-friction additives). According to VW standards 50000 and 50500 B - All-season oils. According to...

Motor oil specification
Modern engines are generally allowed to be filled with HD oils only, the lubricating properties of which are significantly improved by various chemical...

Fuel consumption
Oil consumption in internal combustion engines means oil consumption as a result of its combustion and in no case its leakage from the oil bath, cylinder head,...

Operation of the lubrication system
1 - oil pressure indicator sensor, installed at the end of the line 2 - bypass valve, opens when the filter is clogged 3 - safety oil valve, opens when...

Possible malfunctions of the lubrication system

Checking oil pressure
The oil pressure sensors for a 4-cylinder engine are located on the oil filter flange, and for a 5-cylinder engine, on the left side of the engine block behind...

Oil pan, oil pump
4-cylinder engine with fuel injection 1 - cork 2 - gasket. Replace if damaged. 3 - dipstick for measuring the oil level. The difference between the min and max...

Removal and installation the oil pan. Replacing its gasket
Place the car on jack stands. Remove the lower engine compartment cover. Loosen the mounting bolts and remove the bottom cover mounting sheet. Drain the engine...

Removal and installation the oil pump
4-cylinder engine Removal Remove the oil pan. Unscrew the mounting bolts and remove the oil pump. Examination Disassemble the oil pump. The maximum lateral...

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80(B4, 1991-1996)

80(B3, 1986-1991)

80(B3, 1986-1991, petrol)

80(B2, 1979-1986)