Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
2. The engine
2.1. The general data
2.2. Predvaritlnye checks
2.3. A Mehanichsky part (petrol engines 2,0л)
2.4. Greasing system
2.5. Cooling system
2.6. Injection system
2.6.1. Removal and installation turbocharger
2.6.2. Removal and installation of the vacuum block turbocharger
2.6.3. Adjustment of the vacuum block turbocharger (турбонагнетатель it is removed)
2.6.4. The general instructions on self-diagnostics of system of injection
2.6.5. Decrease in a high pressure of fuel
2.6.6. Removal and installation of a flowmeter of air
2.6.7. Removal and installation of an inlet collector from a fuel stage
2.6.8. Removal and installation of a fuel stage (Rail)
2.6.9. Removal and installation of atomizers
2.6.10. Check of pressure of fuel and residual pressure in front of the high pressure pump
2.6.11. Check of residual pressure
2.6.12. Removal and installation of the pump of a high pressure
2.6.13. Replacement of the block of management of the engine
2.6.14. Removal and ljambda-probe installation in front of the catalyst
2.6.15. Removal and installation a ljambda-probe after the catalyst
2.6.16. A fuel tank (front-wheel cars – all models with engines MPI and 2,0 l FSI)
2.6.17. Откачка fuel from a tank
2.6.18. Removal and installation of a fuel tank from hinged details
2.6.19. Electric check of the fuel pump
2.6.20. Check of quantity of fuel submitted the fuel pump (cars with 4 cylinder engine with a free admission)
2.6.21. Check of quantity of fuel submitted the fuel pump (атомобили with the engine of 1,8 l Turbo)
2.6.22. Check of quantity of fuel submitted the fuel pump (атомобили with 4 cylinder engine FSI)
2.6.23. Check of quantity of fuel submitted the fuel pump (cars with 6 cylinder engine MPI)
2.6.24. Removal and installation of knot of giving of fuel
2.6.25. A fuel tank (all-wheel drive cars till 10.04)
2.6.26. Откачка fuel from a tank
2.6.27. Removal and installation of knot of a pedal of an accelerator from gauges of position of a pedal
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.9. A mechanical part (petrol engines 4,2)
2.10. A mechanical part (diesel engines 2,0)
2.11. Tables
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
8. A body
9. Electric equipment schemes
 







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2.6.18. Removal and installation of a fuel tank from hinged details

Removal
For removal the fuel tank should be empty for reduction of its weight. If necessary pump out fuel from a fuel tank.

Fig. 2.256. Removal of a cover of the accumulator


Take away an accumulator cover to the right 1 and remove it, lifting upwards 2 (fig. 2.256).
Disconnect a wire of weight from АКБ at the switched off ignition.
Quickly turn off and then again twirl a stopper of a jellied mouth of a fuel tank.
Limousine
Remove a luggage carrier upholstery.
Cast away if necessary the right back of a back seat forward.
Avant
Remove a back 1/3 at the left.
Remove a luggage carrier covering sideways at the left and грязеприемную a bath.
All models

Fig. 2.241. Fastening of a cover of a deaf flange


Turn off a cover of a deaf flange (fig. 2.241).

Fig. 2.260. The tip of a deaf flange


Disconnect the tip from a deaf flange (fig. 2.260).
Cars with шланговыми connections

Fig. 2.261. A ventilating tube


Disconnect a ventilating tube 1 (fig. 2.261).
Cars with plug connections

Fig. 2.262. The button of a clamp of a ventilating tube


Disconnect a ventilating tube, having pressed for this purpose the clamp button (fig. 2.262).
All models

Fig. 2.263. A loop detachment


Open лючок a fuel tank and disconnect a loop 1 (fig. 2.263).

THE NOTE
Do not turn off a cover of a jellied mouth.

Clear of a dirt space round a jellied mouth.
By means of the lever take out a tightening ring from a rubber cup and press through a rubber cup inside.
Remove a back right wheel.
Remove back right подкрылок.
Disconnect a ventilating tube 2 from a jellied mouth.

Fig. 2.264. Fastening of a jellied mouth


Turn off the screw of 1 fastening of a jellied mouth (fig. 2.264).
Remove an overlay of the bottom of the car.

Fig. 2.265. Overlays of the bottom of the car


Remove overlays of the bottom of the car 1 and 2 (fig. 2.265).
Remove a back part of an exhaust system.

ATTENTION
Before easing of bolts of a stretcher take measures against car overturning (for example, load a luggage compartment with cargo in weight about 50 kg).

Remove the back bridge.

Fig. 2.266. Fastening of a cable of a drive of lay brake system


Disconnect a cable of a drive of lay brake system at the right forward wall of a fuel tank in the places noted by arrows (fig. 2.266).
Disconnect submitting pipeline from the fuel filter 1, having pressed for this purpose the clamp button. Collect fuel following as a result of it.

Fig. 2.267. Connections of a return fuel highway and the submitting pipeline


Disconnect a return fuel highway 3 and a ventilating tube 2, having pressed for this purpose the clamp button (fig. 2.267).
On cars with an independent heater besides disconnect топливопровод the dosing out pump of an independent heater.
Cars with the engine of 1,8 l Turbo

Fig. 2.268. A fuel highway and a ventilating tube


Disconnect a fuel highway 1 and a ventilating tube 2 at the right forward wall of a fuel tank, having pressed for this purpose buttons of clamps (fig. 2.268).
On cars with an independent heater besides disconnect топливопровод the dosing out pump of an independent heater.
All models
For a support put under a fuel tank a jack for the engine and КП.

ATTENTION
At removal the fuel tank should be empty for reduction of its weight.

Unscrew bolts 1–7.

Fig. 2.269. Bolts of fastening of a fuel tank


Then lower a fuel tank by means of a jack for the engine and КП (fig. 2.269).

Installation
Installation is carried out in return sequence, thus it is necessary to observe following instructions.

THE NOTE
For fastening of all connections of hoses use collars of a corresponding series. Be convinced that топливопроводы and a ventilating tube приклипсованы to arms and to a fuel tank.

Check up both connections of a wire of weight on absence of traces of oxidising process. At detection remove such traces.
Check up Adjusting position of a wire of weight.

Fig. 2.255. The scheme of a lining of connection with weight


The tip 3 should nest densely 2 (fig. 2.255).
The contact uvula 1 should be suspended in a fuel tank 4.
Establish a fuel tank with coupling tapes by means of a jack for the engine and КП on the car bottom.
At its installation pay attention to correctness of occurrence of a jellied mouth in a body aperture.
Fix bolts a fuel tank at first in points 2, 5, 3, 4, then in points 1, 6 and 7 (fig. 2.269).
Tighten fastening of a jellied mouth.

ATTENTION
After installation check up by means of an ohmmeter electric contact of a nest on a jellied mouth with any pure unpainted place of a body.

Preset value: nearby 0 Ohm.
Establish the back bridge.
Establish a back part of an exhaust system.
Establish back right подкрылок, thus twirl the fixing screw of a jellied mouth.
Connect the storage battery. To execute the actions provided after connection АКБ.
The inhaling moments:
– Coupling tapes to a body – 23 Нм;
– A jellied mouth to a wheel arch – 23 Нм.


2.6.17. Откачка fuel from a tank

2.6.19. Electric check of the fuel pump