Auto Manual of VW Passat B5



VW Passat
The maintenance instruction
1. Maintenance service
2. Engines
3. Cooling system
4. Fuel system
5. Engine management
- 6. An exhaust system
   6.2. The catalyst
   6.3. Operation of cars with the catalyst
   6.4. Турбонагнетатель
   6.5. Replacement of the muffler
   6.6. The oxygen gauge
7. Transmission
8. A running gear
9. A steering
10. Brake system
11. A body
12. Heating, ventilation
13. An electric equipment



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6. An exhaust system

6.1. The general information
THE GENERAL DATA

Exhaust system of front-wheel cars from four- and five-cylinder petrol engines


The prevention

In drawing the exhaust system of the car with the engine 1,8-I ADR is presented.


1 – a nut, 25 Nanometers,
2 – a final collector,
3 – the oxygen gauge, 50 Nanometers,
4 – a lining,
5 – a reception exhaust pipe,
6 – a nut, 30 Nanometers,
7 – a nut, 25 Nanometers,
8 – the catalyst,
9 – a collar,
10 – a pillow,
11 – a bolt, 25 Nanometers,
12 – the additional muffler,
13 – the size And = 7–9 mm,
14 – a junction of an exhaust pipe,
15 – the central muffler,
16 – tightening скоба, 40 Nanometers,
17 – a junction of an exhaust pipe,
18 – the central muffler,
19 – a suspension bracket,
20 – a reception exhaust pipe,
21 – the catalyst,
22 – a washer


Exhaust system of front-wheel cars with the diesel engine

1 – the additional muffler,
2 – the central muffler,
3 – a suspension bracket,
4 – a bolt, 25 Nanometers,
5 – a suspension bracket,
6 – tightening скоба, 40 Nanometers,
7 – an intermediate pipe,
8 – a nut, 25 Nanometers,
9 – турбонагнетатель,
10 – a lining,
11 – the catalyst,
12 – a bolt, 25 Nanometers,
13 – a lining,
14 – a nut, 25 Nanometers

Final collectors and reception exhaust pipes of cars with engines 6V (other part of an exhaust system same, as well as at all-wheel drive cars)

1 – the plug,
2 – a bolt,
3 – a washer,
4 – an arm,
5 – the plug,
6 – the rubber plug,
7 – a nut, 25 Nanometers,
8 – a spring,
9 – a bolt, 25 Nanometers,
10 – to the central part of an exhaust system,
11 – the left reception exhaust pipe with the catalyst,
12 – the oxygen gauge № 2, 50 Nanometers,
13 – a black four-contact electric socket,
14 – a nut, 25 Nanometers,
15 – a cap, 10 Nanometers,
16 – a branch pipe,
17 – a top thermofilter,
18 – a bottom thermofilter,
19 – a left final collector,
20 – a lining,
21 – a right final collector,
22 – the oxygen gauge № 1, 50 Nanometers,
23 – the right reception pipe with the catalyst

The central and back part of an exhaust system on all-wheel drive cars from four- and five-cylinder engines

1 – a bolt, 25 Nanometers,
2 – a suspension bracket,
3 – a nut, 40 Nanometers,
4 – the screw with a semicircular head,
5 – tightening скоба, 40 Nanometers,
6 – a junction of pipes of an exhaust system,
7 – the right additional muffler,
8 – a suspension bracket,
9 – an arm,
10 – the left additional muffler,
11 – an intermediate exhaust pipe,
12 – a lining,
13 – the catalyst,
14 – турбонагнетатель,
15 – tightening скоба, 40 Nanometers,
16 – the central muffler

Elements of an arm for support of a reception exhaust pipe

1 – the buffer,
2 – the plug,
3 – a washer,
4 – a left overlay,
5 – a washer,
6 – a bolt,
7 – the plug,
8 – a right overlay,
9 – a spring,
10 – a bolt,
11 – самоконтрящаяся a nut, 25 Nanometers

Distance () on which it is necessary to displace an exhaust system at installation

And = 7 – 9 mm.

The arrow specifies a direction of movement of the car.

The exhaust system consists of a final collector, турбонагнетателя, a reception exhaust pipe, the central and additional mufflers.

On cars with engines V6 two separate exhaust systems are established.

On cars with a drive on all wheels the double back muffler is established.

Connection of elements of an exhaust system is carried out by carving connections or tightening collars.

Exhaust system problem is tap of the fulfilled gases in atmosphere so that they even in a minimum quantity have not got to car salon, and also decrease in noise of the engine to low level. That the exhaust system could carry out the functions, it should be in good repair.

The exhaust system condition influences as well capacity of the engine and the fuel expense.

Removal

The fuel system can be removed both in gathering, and on separate sections.
PERFORMANCE ORDER
1. Lift the car and fix it on supports.
2. Remove the bottom mudguard of the engine.
3. Put on nuts and bolts, крепящие elements of an exhaust system the means destroying a rust. Wait some time while the rust will not be destroyed completely.

Petrol engines

PERFORMANCE ORDER
1. Disconnect an electric socket of the gauge of oxygen. On six-cylinder engines disconnect sockets from two gauges of oxygen. Sockets of gauges of oxygen are located on a partition of a motor compartment.
2. Unscrew fastening of a forward part of a reception exhaust pipe from a final collector. Support an exhaust system a jack or adhere its wire to the car bottom.

Engines 1,8-I ADR and six-cylinder engines

PERFORMANCE ORDER
1. Unscrew fastening of a reception exhaust pipe to an arm located on a transmission.
2. Release an exhaust system from rubber suspension brackets and take it from under the car.

Installation

PERFORMANCE ORDER
1. For simplification of unscrewing in the subsequent nuts and bolts, крепящих an exhaust system, grease with their high-temperature paste Liqui Moly LM-508-ASC.
2. Before repeated connection of elements of an exhaust system clear their connection by an emery paper of the hermetic and rust rests.

The engine 1,8-I ADR and the six-cylinder engine

PERFORMANCE ORDER
1. Unscrew an arm of support of a reception exhaust pipe from a transmission, fig. Elements of an arm for support of a reception exhaust pipe see.
2. Establish exhaust system elements in rubber pillows, but at this stage do not tighten bolts.
3. Болтвми screw the catalyst with a new lining on a reception exhaust pipe, but at this stage do not tighten definitively bolts.
4. If necessary turn exhaust system sections so that all exhaust system settled down on distance not less than 25 mm from a body.
5. Move an exhaust system so that exhaust system fastening in rubber pillows has been shifted forward on 7–9 mm (see fig. Distance (on which it is necessary to displace an exhaust system at installation). It is necessary that at heating and thermal expansion of an exhaust system it was established in correct position.
6. Definitively tighten all nuts and bolts, крепящие an exhaust system (the tightening Moments see the table).
7. Establish the bottom casing of the engine.
8. Connect electric sockets of gauges of oxygen.
9. Lower the car on the earth.
10. Start the engine and check up tightness of an exhaust system.