Repair and service Audi A8 in body D2 with 1994 for 1999 of release.
1. Car operation
2. Maintenance service
3. Petrol engines of 2,8 l
4. Petrol engines of 3,7 and 4,2 l
5. Diesel engines of 2,5 l
6. Diesel engines of 3,3 l
7. Systems of ignition and injection of fuel of petrol engines
8. System of release of the fulfilled gases of cars with petrol engines
9. The power supply system of diesel engines
10. System of prestarting heating of diesel engines
11. System of release of the fulfilled gases of cars with diesel engines
12. Greasing system
13. Cooling system
14. Coupling
15. A transmission
16. Shaft of a drive of forward wheels
17. Features of a design of transmission of all-wheel drive cars
18. A suspension bracket
19. Wheels and tyres
20. A steering
21. Brake system
22. A body
23. Heating and air-conditioning system
24. An electric equipment
24.1. The general data
24.2. Electric chains
24.3. Safety locks
24.4. Electronic blocks in a motor compartment
24.5. Electronic blocks in a niche for feet of the passenger
24.6. The block of fuses in a niche for feet of the passenger
24.7. The relay block in a niche for feet of the driver
24.8. An additional arm of the relay in a luggage space
24.9. The storage battery
24.10. The generator
24.11. System of start-up of the engine
24.12. A starter
24.13. Headlights
24.14. Replacement of lamps of external illumination
24.15. A lamp of a passing light and / or an antifog lamp
24.16. A lamp of a headlight of headlights
24.17. Adjustment of light of headlights
24.18. The forward index of turn
24.19. The lateral repeater of turn
24.20. Lamps of a back lantern in a wing
24.21. A back lantern in a wing
24.22. Lamps of a back lantern in a luggage carrier cover
24.23. A back lantern in a luggage carrier cover
24.24. The top stoplight
24.25. A forward lantern of illumination of salon
24.26. A combination of devices
24.27. Switches of a steering column
24.28. The cylinder of the lock of ignition
24.29. The ignition lock
24.30. Switches of the central section of the panel of devices
24.31. The switch of a heater of a back seat
24.32. The switch of adjustment of position of a mirror
24.33. Forward switches windows
24.34. Back switches windows
24.35. A radio receiver
24.36. Dynamics of a forward door
24.37. Dynamics of a back door
24.38. Dynamics of a back shelf
24.39. Check of a heater of back glass
25. Electric schemes


24.2. Electric chains

For protection of electric chains safety locks with ножевыми the contacts which colour corresponds to a current of protection of a safety lock are used. Serviceability of a safety lock define on presence of the wire conductor connecting contacts of a safety lock. For replacement of the failed safety lock preliminary switch off a corresponding electric chain, take a safety lock from a nest tweezers. If again established safety lock instantly fails at pressure giving, check up a protected electric chain. If the safety lock protects some chains, connect them serially that on перегоранию safety lock to define a faulty chain.

Detection of damages to a chain
The usual electric chain consists of an electric element, switches, the relay, engines, safety locks, automatic switches, wires and sockets which connect an electric element to the storage battery and a body. For the help by search of sources of malfunction of system of an electric equipment in a management schemes of an electric equipment of the car are resulted.
Before to try to define a malfunction source, study the corresponding scheme of an electric equipment for representation reception about elements of this chain. The number of possible sources of malfunction can be reduced if to check up work of other elements entering into the given chain. If some elements or chains fail simultaneously, probably, the safety lock, the general for these chains or elements is faulty, or connection with a body – "weight" is broken.
Causes of defect are the weakened or oxidised sockets, infringement of contact to a body, the fused safety locks or faulty relays. Visually check up a condition of all safety locks, wires and sockets in the failed chain before to start check of other elements. Use schemes of an electric equipment for definition of trailer clips which are necessary for checking up for detection of a source of malfunction.
The basic devices necessary for detection of a source of malfunction, the tester or the voltmeter, a control lamp on 12 are In, an ohmmeter, the battery and a set of wires with probeами, накидной a puncture, it is desirable with the automatic switch or a safety lock which is used for detour of checked wires or elements.
Except bad connection of wires, in electric equipment system two more cores of type of malfunctions – the opened chain or short circuit are possible.
The chain is disconnected as a result of breakage in an electric equipment chain that interrupts a current and causes switching-off of an element of an electric equipment.
For check of an integrity of a chain connect the device for check of schemes or the voltmeter: one conclusion to the negative plug of the storage battery or the earthed element, another – to contact in a checked chain, it is desirable for the nearest to the storage battery or a safety lock. Thus checked site of a chain should be energised from the storage battery, except for a case when the connection socket to the battery does not spend a current or has fused a safety lock (do not forget that some chains of an electric equipment join only at key turn in the ignition lock in certain position).
Include a chain, then connect a tester conclusion to the connection nearest to the switch of a chain on the party of the checked element.
If there is a pressure (to what the control lamp testifies or voltmeter indications), means, in a chain site between corresponding connection and the switch are not present ruptures.
If the site on which there is no pressure is found out, means, chain breakage has occurred between this point and a point of the previous check on which there was a pressure. Chain breakage is caused by damage or socket easing.
For detection of a source of short circuit disconnect electric power consumers – lamps, electric motors, heating elements, etc.
Remove a corresponding safety lock and connect tester or voltmeter conclusions to safety lock plugs.
Include a food in chains, thus do not forget that some chains of an electric equipment join only at key turn in the ignition lock in certain position.
If in a chain there is a pressure (to what the control lamp testifies or voltmeter indications), means that in it there was a short circuit.
If at carrying out of check of pressure is not present, and the safety lock still fuses at connection of the same loading – out of operation there was a loading element.
The negative plug of the storage battery is connected to "weight" – to a body, the engine or a transmission. The unreliable or oxidised fastening can lead to refusal of an element or infringement of its work. Do not forget that on many cars "mass" wires between some elements, such as the engine / transmission, and a body, that is in those places where there is no direct contact between metal elements because of soft rubber fastenings or a paint coat are used.
For check of reliability of grounding of an element it is necessary to disconnect the storage battery and to connect one of ohmmeter conclusions to reliably earthed element. Connect other conclusion to a wire or connection with a body which is necessary for checking up. Resistance shown by an ohmmeter should be equal to zero if is not present, check up connection as follows.
If raises the doubts reliability of contact to "weight", disassemble connection, remove pollution and smooth out contacts. At assemblage tighten socket fastening, having put a layer of technical vaseline or silicone greasing for corrosion prevention.

The general recommendations
Before removal of elements of an electric equipment or separation of electric sockets disconnect the storage battery, preliminary having found out, whether there is at you a code of inclusion of a radio receiver.
Switch off ignition and disconnect a wire of "weight" from the storage battery.
After installation of elements of an electric equipment or electric sockets connect "a weight" wire to the storage battery.
Include a radio receiver and enter into it a code.
Lift glasses electric glass lifts upwards against the stop. Then press all switches стеклоподъемника once again, at least for 1 second, in position of closing for activation of the block of management glass lifts.
Establish time for hours.

24.1. The general data

24.3. Safety locks