VW Passat B5

since 1996 release

Repair and operation of the car



Foltsvagen Passat B5
+ Maintenance instruction
- 1. Maintenance
   1.1. Technical characteristics
   + 1.2. Frequency of service
   + 1.3. Engine oil
   1.4. Check of the exhaust system
   + 1.5. Engine cooling system
   - 1.6. Spark plugs
      1.6.1. Replacement of spark plugs
   1.7. Discharge of water from the fuel filter (diesel engines)
   1.8. Replacement of the fuel filter (diesel engines)
   1.9. Check of tightness of hoses and effluence of liquid
   1.10. Replacement of the filtering element of the air filter
   1.11. Check of a condition of a poliklinovy belt
   1.12. Maple belts
   1.13. Measurement of wear of gear belts on diesel engines
   1.14. Box of transfers / main transfer
   1.15. Check of a protective cover of a power shaft
   1.16. Visual check of tightness of the transmission
   1.17. Check of level of oil in the mechanical transmission
   1.18. Check of oil in the main transfer of automatic transmissions
   1.19. Check/replacement of level of oil in the automatic transmission
   1.20. Check of a forward suspension bracket and steering
   1.21. Check of dustproof covers of hinges of a forward suspension bracket
   1.22. Check of the shock-absorber
   1.23. Check of a radiator
   1.24. Check of electric chains
   + 1.25. Brake fluid
   1.26. Check of front brake shoes
   1.27. Check of back brake shoes
   1.28. Check of brake hoses
   1.29. Check of cables of the emergency brake
   1.30. Check of level of liquid in the amplifier of steering
   1.31. Dust filter
   1.32. Rechargeable battery
   1.33. Hinges of doors
   + 1.34. Windscreen washers
   1.35. Brushes of screen wipers
   1.36. Check of a starting position of the lever of a screen wiper
   1.37. Check of a tilt angle of the lever of a screen wiper
   1.38. Replacement of the battery in a key of remote control
   1.39. Zeroing of the Service-indicator
+ 2. Engines
+ 3. Cooling system
+ 4. Fuel system
+ 5. Engine management
+ 6. Exhaust system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Heating, ventilation
+ 13. Electric equipment







1.6.1. Replacement of spark plugs

GENERAL INFORMATION

Spark plugs replace at planned maintenance.

If it is necessary to replace ever spark plugs not at planned maintenance, it is necessary to take the following into account.

Spark plugs and all system of ignition in general are picked up to this engine, and it promotes decrease in amount of harmful substances in the fulfilled gases.

To avoid failures of the engine, decrease in its power, deterioration in acceleration performance, increase in content of harmful substances in the fulfilled gases and creations of hindrances for radio reception, it is necessary to apply only the spark plugs recommended by the Volkswagen Group to this engine. Especially important characteristics of candles are the quantity of electrodes, kalilny number and in some cases ability not to create hindrances to radio reception.

The correct functioning of spark plugs – one of the most important conditions of effective operation of the engine. It is necessary that on the engine spark plugs only the ordered type were established. At the serviceable engine cleaning of spark plugs – rare operation.

Tools necessary for a vyvinchivaniye of a spark plug and correction of an interelectrode gap

Engine 1,6-I

Arrangement of screws (1) of fastening of the top casing of the engine 1,6-I


Arrangement of tips (2) high-voltage wires on spark plugs



PERFORMANCE ORDER
1. Unscrew screws and remove the top casing of the engine, see rice. Arrangement of screws (1) of fastening of the top casing of the engine 1,6-I.
2. Mark high-voltage wires in figures and remove high-voltage wire tips from spark plugs, see rice. An arrangement of tips (2) high-voltage wires on spark plugs)
3. Clear candles, using a brush, the vacuum cleaner or a stream of compressed air that will exclude hit of dirt in engine cylinders after a vyvinchivaniye of spark plugs. Unscrew candles, using a candle key.

Engine 1,8-I

Arrangement of brackets (1) of fastening of the top casing of the engine 1,8-I


Arrangement of tips of high-voltage wires on spark plugs of the engine 1,8-I


PERFORMANCE ORDER
1. Release two brackets and remove the top casing of the engine, see rice. Arrangement of brackets (1) of fastening of the top casing of the engine 1,8-I.
2. Mark high-voltage wires in figures and remove high-voltage wire tips from spark plugs, see rice. An arrangement of tips of high-voltage wires on spark plugs of the engine 1,8-I.
3. Clear candles, using a brush, the vacuum cleaner or a stream of compressed air that will exclude hit of dirt in engine cylinders after a vyvinchivaniye of spark plugs. Unscrew candles, using a candle key.

Engines 2,3-I (5 cylinders)

Arrangement of tips of high-voltage wires on spark plugs of the engine 2,3-I

·
PERFORMANCE ORDER
1. Open a cowl.
2. Mark high-voltage wires in figures and remove high-voltage wire tips from spark plugs, see rice. An arrangement of tips of high-voltage wires on spark plugs of the engine 2,3-I.
3. Clear candles, using a brush, the vacuum cleaner or a stream of compressed air that will exclude hit of dirt in engine cylinders after a vyvinchivaniye of spark plugs. Unscrew candles, using a candle key.

Engines 2,8-I (6 cylinders)

Arrangement of screws of fastening of the top casing of the engine 2,8-I

·
PERFORMANCE ORDER
1. Unscrew screws and remove the top casing of the engine, see rice. Arrangement of screws of fastening of the top casing of the engine 2,8-I.
2. Mark high-voltage wires in figures and remove tips of high-voltage wires from spark plugs.
3. Clear candles, using a brush, the vacuum cleaner or a stream of compressed air that will exclude hit of dirt in engine cylinders after a vyvinchivaniye of spark plugs. Unscrew candles, using a candle key.

All engines

Visual control of a working part of spark plugs can show a condition of the engine. If the nasal part of the isolation center of spark plugs pure and white, without raid, then it testifies to too poor mix. It also specifies that a candle too hot, that is heat from the central electrode is taken away slowly. If this is so, then it is necessary to adjust composition of fuel mix or to replace a candle.

If the nasal part of the isolation center is covered with a black raid, then it means that mix too rich. If the raid black and oily, then is the witness stvut about wear of the engine and need of its check and repair. If the nasal part of the isolation center is covered with a light brown raid, then the composition of mix is optimum and the engine is in good shape.

The interelectrode gap of a spark plug is of great importance as at too big and at too small gap the spark size changes that leads to decrease in overall performance of the engine. The gap has to conform to technical requirements always.

Measurement of a gap of a spark plug wire template


Measurement of a gap of a spark plug probe


Check of a gap is carried out by a wire template or the probe. Correction of a gap is carried out by a podgibaniye of a side electrode. The central electrode cannot be bent at all as it can lead to breakage of the insulator and an exit of a candle out of operation.

For a podgibaniye of a side electrode of a candle it is necessary to use the special tool.

Before installation of a spark plug in the engine, check that the carving was pure and all threads of a carving whole.

Screw in spark plugs by hand and then tighten them the required moment.

Connect high-voltage wires to spark plugs.