Volkswagen Polo 3 with 1994 for 2001 of release.
1. The general data
2. The engine
3. Greasing system
3.1. Removal and installation of the oil pallet
3.2. The oil pump
3.3. The oil filter
3.4. Check of pressure of oil
3.5. Replacement of engine oil and the oil filter
4. Cooling system
5. Systems of injection of fuel
6. Ignition system
7. Coupling
8. A mechanical transmission
9. A drive of wheels
10. A steering without the amplifier
11. A steering with the hydraulic amplifier
12. A forward suspension bracket
13. A back suspension bracket
14. Brake system
15. An electric equipment
16. Heating and ventilation system
17. An automatic transmission
18. Appendices


3.4. Check of pressure of oil

Engines have only one gauge of pressure of oil (with a black-blue wire, distinctive colour — a blue, 0,25 bar). At engines-predecessors of switches two.
At engine work the control lamp if pressure of oil falls more low 0,15–0,35 bar and contact idling lights up becomes isolated.

Fig. 89. The details which are subject to removal for dismantle of the oil pump, and other details of system of greasing: 1 — a stopper маслоналивного apertures; 2 — the gauge of pressure of oil (0,25 bar); 3 — a bolt, 10 Нм; 4 — a directing tube for маслоизмерительного щупа; 5 — directing (it is used in a workshop for an engine oil fence); 6 — маслоизмерительный щуп; 7 — a camshaft pulley; 8 — the oil filter; 9 — an asterisk on cranked to a shaft; 10 — a tension roller of a gear belt; 11 — a nut, 20 Нм; 12 — a gear belt газораспределительного the mechanism; 13 — the top casing of a gear belt; 14 — the bottom casing of a gear belt; 15 — a bolt, 90 Нм + 120 ; 16 — ременный (shock-absorber) pulley; 17 — a gear pulley of a cranked shaft; 18 — маслоуплотнительное a ring; 19 — a flange with маслоуплотнительным a ring; 20 — a lining (to replace always); 21 — the condensing plug; 22 — a drive chain; 23 — the oil pump; 24 — a cover of the oil pump with редукционным the valve; 25 — a stopper маслосливного apertures, 30 Нм; 26 — a sealing ring (to replace always); 27 — the oil pallet; 28 — a bolt of fastening of an oil bath; 29 — a lining (if it is established); 30 — fastening knot on the bottom party картера; 31 — a sealing ring of round section (to replace always); 32 — to the air filter; 33 — маслоналивная a pipe

The gauge of pressure of oil 2 (fig. 89 see) is established between spark plugs.
Pressure of oil in the engine can be checked up by means of a manometre which should have the connecting element, allowing to screw it instead of the gauge of pressure of oil. The gauge can be checked up, the description resulted more low assumes that for this purpose it is necessary to have or a manometre specified in fig. 96, or similar to it with a connecting element for the gauge of pressure of oil.

Fig. 96. Places of connection for carrying out of check of pressure of oil: 1 — a black-blue wire; 2 — a control lamp; 3 — a brown wire

For check of pressure of oil it is necessary to execute the following:
- To disconnect a cable from clips of the gauge of pressure of oil and to take the gauge from the engine (the gauge is near to a spark plug);
- To screw the switch in a manometre and to connect a blue wire 1;
- To establish in a head of the block of cylinders a manometre instead of the gauge;
- To connect a control lamp 2 to a wire 1 and плюсовой the plug of the storage battery;
- To connect a wire 3 (brown) to "weight". To include ignition. The control lamp should light up at once. If it does not occur, it is necessary to replace the gauge (it is supposed that the control lamp has not fused);
- To include the engine and to establish an idling mode;
- To check up, whether the control lamp is switched off at pressure 0,15–0,35 bar. If it does not occur, to establish the new gauge;
- To increase number of turns of the engine to 2000 mines-1 and to be convinced that the manometre shows pressure not less than 2,0 bar. Otherwise to replace the gauge or to check up, whether there is no malfunction in the oil pump. It is recommended to carry out the control on car-care centre before to assort the oil pump. Thus it is necessary, that oil level in the oil pallet corresponded to the demanded.

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3.3. The oil filter
On the following page
3.5. Replacement of engine oil and the oil filter