Audi 80/90/Coupe

since 1986-1991 of release

Repair and car operation



Audi 80/90/Coupe
+ 1.2. Car identification
+ 2. Engines, carburetors
3. Greasing system
+ 4. Cooling system
- 5. Fuel system
   + 5.2. Systems of injection of fuel
   5.2.2. Fuel injectors (20-klapanny models)
   + 5.2.3. Electronic control system of the MPI engine
+ 6. Exhaust system
+ 7. Ignition system
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Central air
+ 14. Electric equipment







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5. Fuel system

5.1. Fuel system

5.1.1. Components of fuel system

GENERAL INFORMATION

Prevention

Inflammably! Do not smoke and do not bring to area of repair anything from this that can ignite fuel.

Always replace all consolidations and clips.

Always observe purity.


Komponeneta of fuel system (4-and 5-cylinder models)

1. A transferring element of the fuel level sensor
provision of installation
the arrow is directed forward
2. Fuel tank
paste sound-proof slips
to a new tank in the same situation, as well as
on an old tank
3. 25 N of m.
4. A fixing arm
5. Sealing ring
6. Lock ring
7. Submitting топливопровод
to the fuel filter
8. Return топливопровод from
fuel distributor
9. Connector of the coal filter
10. Perepuskny tube
11. Rubber plug
12. Ring consolidation
13. Lock ring
14. Laying of a jellied mouth
replace, if wore out or it is damaged
15. Cover of a toplivozalivny mouth
16. Arm
17. Mudguard
18. Valve самотека
check:
the valve in vertical situation = fuel flows
the valve is inclined on 45 ° = fuel does not flow
19. Ring consolidation
before installation cover with a graphite powder

Komponeneta of fuel system (4-and 5-cylinder models)


1. Store
capacity of 20 cm3
supports residual pressure 3.4 bar
2. 10 N of m.
3. 10 N of m.
4. Fuel filter
provision of installation
the arrow specifies the stream direction
fuels
5. 20 N of m.
6. Arm
7. 20 N of m.
8. Submitting топливодопровод to
to the fuel distributor
9. 20 N of m.
10. Negative plug
blue wire
11. Locking valve of the fuel pump of 20 N of m.
12. Positive plug
red wire
13. Fuel pump
14. Arm
15. 10 N of m.
16. 20 N of m.
17. 10 N of m.
18. Arm

Coal filter (4-cylinder models)

1. Tube
to the valve самотека
2. To an inlet collector
3. Note: connections are shown disconnected
4. Electrosocket
to the electromagnetic locking valve
5. Electromagnetic locking valve (black)
ignition is included: the valve is open
ignition is switched off: the valve is closed
6. Assembly arm
7. Coal filter
8. Frequency valve of the coal filter (gray)
ignition is included: the valve is closed
ignition is switched off: the valve is open
9. Cover
10. Electrosocket
to the frequency valve of the coal filter

Coal filter (5-cylinder models)

1. To the valve самотека
2. Electromagnetic locking valve of the coal filter
3. A cover of soaked-up air
4. Throttle case

5. Electrosocket
6. Arm
7. Coal filter
8. Cover


Fuel system, arrangement of components for all-wheel drive (4х4) and 20-klapanny models
1. A transferring element of the fuel level sensor
removal: disconnect a weight wire from the accumulator
disconnect a cover and a plait of wires from a transferring element
release the bayonet lock of a transferring element, turning it the VAG 2012А tool
provision of installation: the arrow specifies the movement direction
2. Ring consolidation
before installation cover with oil
3. Ventilating tube
4. Valve samoteka/ventilation
removal: pull the valve up and remove from an arm
check: the valve in vertical situation – fuel flows
the valve is inclined on 45 ° – fuel does not flow
5. Arm
6. Ring consolidation
7. Mudguard
8. Lock ring
9. Consolidation, replace
10. Cover of a toplivozalivny mouth
11. Perepuskny tube
12. Rubber plug
13. 25 N of m.
14. Arm
15. Fuel tank
16. A ventilating tube, to the coal filter
17. Return топливопровод, from a pressure regulator
18. Submitting топливопровод, to fuel injectors
19. Dustproof consolidation

Prevention

Inflammably! Do not smoke and do not bring to area of repair anything from this that can ignite fuel.

Always replace consolidations at installation of new parts.

Connections of hoses are fixed by screw or lever clips, always replace lever clips.

Always observe purity.


Fuel system, arrangement of components for all-wheel drive (4х4) and 20-klapanny models

1. 10 N of m.
2. Submitting топливопровод
to fuel injectors
3. Arm
4. Locking valve of the fuel pump
5. Plug
blue wire, negative (-)
6. Plug
red wire, positive (+)
7. Fuel pump
8. Submitting топливопровод
from a fuel tank
9. Fuel filter
provision of installation
the arrow specifies the direction of a stream of fuel
10. 20 N of m.

Fuel system, arrangement of components for all-wheel drive (4х4) and 20-klapanny models

1. A connector on an inlet collector
2. Electromagnetic valve of the coal filter
3. To vacuum connection on a regulator of pressure of fuel
4. Locking valve
5. Coal filter
6. Cover
7. To the valve samoteka/ventilation
8. Arm

Fuel system, arrangement of components (Compartment model)

1. Ventilating tube
2. A tube from пеноматериала
3. Ventilating tube
4. Poplavkovy valve
5. Valve of regulation of pressure
6. Ring consolidation, replace
before installation cover with oil
7. 5 N of m.
8. Broad tank
9. A tube from пеноматериала
10. Ventilating tube
11. Lock ring
12. A transferring element of the fuel level sensor
13. Laying, replace
14. Fuel pump
15. Connection submitting топливопровода, 20 N of m.
16. Fuel tank
17. A directing partition
18. Rubber plug
19. Connection submitting топливопровода, 20 N of m.
20. "Banjo" bolt, 20 N of m.
21. Consolidation, replace
22. Fuel filter
provision of installation: the arrow specifies the direction of a stream of fuel
23. A ventilating tube, to the coal filter
24. Return топливопровод, from a pressure regulator
25. Submitting топливопровод, to топливопроводу the engine
26. "Banjo" bolt, 20 N of m.
27. Consolidation, replace

Fuel pump

1. Consolidation with aligning ledges
replace
2. Lock-nuts
М6 2.5 N of m.
М5 2.0 N of m.
3. Electric plugs
М6 weight (-)
М5 positive (+)
4. Screen / filter
turn to the left (the bayonet lock)
5. Fuel pump
replace a rubber ring (for models with a rubber ring in a flute of a casing of the pump)
6. Locking valve (20 N of m)
replace consolidation
7. Screen (the top part)
8. Consolidation
replace
9. "Banjo" connection
establish "banjo" at an angle 180 ° to a drive of forward wheels
10. Noise absorber (15 N of m)