Warning: Disconnecting the battery will erase data from some electronic memory modules, such as the fault memory of the engine management system and transmission, as well as the anti-lock system. Before disconnecting the battery, the data of the memory blocks must be read out at the HUNDRED AUDI. If these malfunctions occur as a result of further movement of the vehicle, they are again recorded in the memory.
The automatic power windows should be activated again after the battery is connected.
Radio receivers fitted as standard are equipped with a security interlock. It prevents unauthorized use of the device if the power supply is interrupted. The power supply is interrupted not only when the battery is disconnected, but also when the radio is removed or if the radio's fuse is blown.
If the radio is coded, the radio code must be set before disconnecting the battery. If the code is not known, the radio can be turned on at the HUNDRED AUDI, refer also to subsection Entering the radio code.
Before disconnecting the battery, write down the settings of the radio transmitters stored in the memory.
If the battery is to be replaced:
– If possible, use a modern battery with a central gas outlet. In this case, the gases formed in the batteries are discharged through a hose.
- 1 - when servicing the battery, it is necessary to follow the safety rules set out in the instruction manual.
- 2 - The battery contains corrosive acid and care must be taken not to spill the acid from the battery.
- 3 - do not use open fire near the battery.
- 4 - use protective goggles when working with the battery.
- 5 - keep the battery out of the reach of children.
- 6 - when disposing of the battery, hand it over only to the points intended for this.
- 7 - do not dispose of the battery with household waste.
- 8 - gases released during battery charging are explosive.
– If a battery with vented plugs is nevertheless installed, make sure that the plugs are protected by a plastic cap against splashing water.
Withdrawal
1. Switch off the ignition.
2. Open the hood.
3. Remove the battery protective cover (A), by opening the clamp.
4. Open the cover of the main fuse box (IN) forward. To do this, squeeze the locking strips at the cover on the left and right (arrows).
5. Disconnect the negative battery cable (–) and take him aside. To do this, loosen the nut -1- (wrench 10 mm).
6. Loosen the nut -2- (wrench 10 mm). Disconnect the main fuse box front and rear from the battery and remove.
7. Disconnect the positive cable (+) batteries, for which unscrew the nut -3- (wrench 10 mm). 4 - fuses.
8. Loosen the bolts securing the mounting plate at the base of the battery (arrow on accompanying illustration) and take out.
9. Slide the battery away from the mounting plate and remove. The plate is opposite the removed holder.
Installation
10. Check that the ignition and all current consumers are turned off, turn them off if necessary.
Warning: When installing the battery, make sure that the central gas outlet hose is not pinched. This is the only way to ensure that the gases generated during battery charging can be vented through the vent hose without hindrance. The illustration does not show the battery that is installed in the AUDI A3.
Warning: In the hose connection (arrow illustration) there is a fire protection that prevents the ignition of hydrogen released from the battery through the gas outlet hose. Therefore, the gas outlet hose must not be removed.
11. Insert the battery into the holder -1-.
Warning: When installing the battery, make sure that the tab on the battery holder (arrow illustration) entered the groove of the support bar -1-. After that, do not move the battery to the left or right.
12. The battery is installed correctly if the center groove of the battery support bar aligns with the threaded hole.
13. For radiators with a hose for a central gas outlet, make sure that the hose is not pinched and that nothing interferes with the degassing process.
14. For batteries without a hose for the central gas outlet, make sure that the hole at the top of the cover is not blocked.
15. Install the holder -2- on the block -4- for fixing the battery and fix it with a bolt -3- with a torque of 20 Nm (1 - support bracket).
16. Check that the battery is securely installed by moving it in different directions. If the battery is not firmly seated, its life will be shortened. In addition, impact safety will be reduced.
17. Reinstall the heat shield if removed.
Warning: Incorrect battery connection can cause serious damage to the generator and electrical devices.
18. Connect the positive cable to the positive pole (+), tightening torque 6 Nm.
Warning: Press the terminal carefully so as not to damage the battery case. Do not lubricate the battery poles.
Warning: The negative cable is connected only after the safety holder has been installed.
19. Install the safety holder on the battery, while putting the current-carrying plate on the positive battery terminal bolt.
20. Secure the safety holder clamp strap to the battery.
21. Tighten the current plate mounting bolt on the positive terminal (+).
22. Connect the fuses to the electrical wires and secure.
23. Plug in the multi-pin connector.
24. Attach the negative cable (–) and secure with a torque of 6 Nm.
Warning: Press the terminal carefully so as not to damage the battery case. Do not lubricate the battery poles.
25. If necessary, program the radio receiver, while referring to subsection Entering the radio code.
26. Set the clock.
27. Activate the automatic operation of the power windows.
28. Lock the vehicle from the outside through the driver's or front passenger's door. Make sure all doors and windows are completely closed.
29. Open the car and close it again. Keep the key in the closed position for at least 1 second.
Warning: If there is any malfunction in the operation of the power windows, the lights in the doors will flash.
Note for batteries with vented plugs
30. If possible, install only a battery with a central gas outlet.
31. For batteries of the type shown in the illustration with vented and reversible plugs, plastic covers must be fitted over the plugs to protect against the ingress of water, as well as escaping and corrosive electrolyte.
For a battery with a central gas outlet (flat, reversible only with a screwdriver plugs) these caps are not needed.
Purchasing a new battery
Probably the most important thing a buyer should pay attention to is the characteristics of the battery. There are three of them. The first is the nominal voltage, it is the same for all batteries, and it is impossible to make a mistake. When buying, it is advisable to check the battery with a load plug. The second is the capacitance, measured in ampere / hours (A/h), means, roughly speaking, the amount of electricity stored in the battery. It depends on the capacity how long you can turn the engine with the starter, more precisely, how many attempts to start the engine can be made. The price of a battery is almost directly proportional to its capacity. And the third characteristic is the starting current (measured in amperes. A), i.e. current supplied to the starter during cranking. On batteries, it can be indicated according to four different systems: GOST (on domestic), EN (European standard), SAE (american standard) and DIN. The last, German standard, is closest to our GOST and is set on most European "default", i.e. when the standard system is not specified. The larger it is, the faster and with more force the starter will turn the engine.
It is better if you buy a battery with the characteristics that are indicated in the operating instructions for your car: this way it will last you longer at minimal cost. You can save money and buy a battery with a smaller capacity, but it will serve you less than usual and will not cope well with winter starting. If you buy a battery of even a slightly larger capacity, you will not win in terms of service life, because. Constant undercharging of the battery will lead to sulfation of the plates, and you will lose money. You should also not get carried away with increased starting current: you will burn the starter. It is better to change the oil in the engine, and there will be no problems with starting.
Recently, the country's market is full of low-quality goods and fakes. Batteries are no exception. There are several signs by which it is possible to distinguish the original from the fake with sufficient accuracy. First and, perhaps, most importantly, the country of manufacture and the producing plant must be indicated on the battery, it is better if with an address. Secondly, the date of manufacture must be indicated, which is very important if the battery is flooded. Each battery must be accompanied by a technical data sheet, but the presence of instructions is optional. This is due to the fact that in the west, batteries are almost never sold at retail, they are installed by specialists at service stations. Thirdly, a high-quality battery is unthinkable without a high-quality case, good plugs and smooth output terminals, often lubricated with technical protective grease against oxidation and covered with colored plastic caps on top.
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