Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
7.1. General information
7.2. Power supply system
7.2.1. Rechargeable battery
7.2.2. Shutdown and connection of the rechargeable battery in a motor compartment
7.2.3. Shutdown and connection of the rechargeable battery in a luggage carrier
7.2.4. Removal and installation of the rechargeable battery in a motor compartment
7.2.5. Removal and installation of the rechargeable battery in a luggage carrier
7.2.6. Check of reliability of fastening of joint stock bank
7.2.7. Accumulators with "a magic eye"
7.2.8. Rest voltage measurement
7.2.9. Check of level of electrolyte – joint stock bank with traffic jams
7.2.10. Check of density of electrolyte in all sections – joint stock bank with traffic jams
7.2.11. Voltage measurement under loading
7.2.12. Charging of the rechargeable battery
7.2.13. Strongly discharged joint stock banks
7.2.14. Bystry accumulator charging
7.3. Generator
7.4. Starter
7.5. Relay blocks, sockets and safety locks
8. Body
9. Schemes of electric equipment
 







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7.2.5. Removal and installation of the rechargeable battery in a luggage carrier

ATTENTION
On cars with the Telematik system before shutdown of joint stock bank activate an operating mode of the Telematik control unit.
For the cars equipped with the radio tape recorder / radio navigational system with a protective code (only cars of other producers), consider a protective code, if necessary request it.

Removal
Switch off ignition and pull out the ignition key.
Lift and fix a rug of a luggage compartment.

Fig. 7.10. Joint stock bank in a luggage compartment


Take the profile plug 5 behind the accumulator the movement (fig. 7.10) up.
Turn off a nut 6 on several turns and disconnect a weight wire from a polar conclusion.
Cast away a cover 2 positive poles up.
Turn off a nut 1 on several turns and disconnect a positive wire from a polar conclusion (fig. 7.10).
Disconnect a hose of the 7th central gas outlet.
Unscrew the screw 4 on a fixing bracket 3 accumulators (fig. 7.10).
Take the accumulator from a level of fastening of the console of joint stock bank.
Take joint stock bank from a luggage carrier.

ATTENTION
At utilization of accumulators surely observe instructions on utilization of accumulators and sulfuric acid.

Installation
Accumulators of the program of Audi spare parts have a basic level adapter for adaptation to various level of fastening. Information on existence and a way of use of a basic level adapter is provided in the operation manual on the accumulator.

NOTE
Only installation of the accumulators which are not demanding technical leaving according to the TL82506 standard (since December, 1997) and "VW75073" is allowed (since August, 2001).

Insert the accumulator into an arm.

Fig. 7.11. Installation of joint stock bank


The basic level of 1 case of joint stock bank has to enter a guide 2 arms of fastening of joint stock bank (fig. 7.11).
Joint stock bank should not move more.
Establish a fixing bracket 3 accumulators (fig. 7.10).
The ledge in a fixing bracket of joint stock bank has to enter dredging on a basic level of the case of joint stock bank.
Tighten bolts 4 fixing brackets of the battery (fig. 7.10).
Spread a hose of the 7th central gas outlet of joint stock bank, observe instructions.
Connect plugs of joint stock bank at the switched-off ignition and the disconnected electroconsumers in the following sequence.
First of all manually get a polar tip of a positive wire on a positive pole of the + accumulator and tighten a nut of 1 (fig. 7.10).
Close a cover 2 positive poles.
Manually get a polar tip of a wire of weight on a negative pole of the - accumulator and tighten a nut of 6 (fig. 7.10).
After installation check reliability of fastening of joint stock bank.
If wires are connected to plugs of the accumulator repeatedly, it is necessary to execute the following events.

NOTE
If the joint stock bank is connected repeatedly, it is necessary to take care of activating the devices which are included in the car package (the radio tape recorder, radio navigational system, hours, power windows) according to the operation manual.

Deactivate an operating mode of the Telematik control unit.
Check functioning of remote radio control, if necessary, synchronize a radio code.
After repeated connection of power supply the alarm lamp of ESP dies away only through several meters of the movement.

Inhaling moments
The screw to a fixing bracket of joint stock bank: 12 N · m.
The accumulator plug to a polar conclusion: 7,5 N · m.


7.2.4. Removal and installation of the rechargeable battery in a motor compartment

7.2.6. Check of reliability of fastening of joint stock bank