Contents: Removal ⤓ Installation ⤓
Caution: When the battery is disconnected, the contents of the engine management failure memory, the anti-lock brake system, and other permanently operating devices (for example, setting the clock and programming the radio) are erased. Before disconnecting, contact a service station to conduct a memory interrogation. After connecting the battery, the corresponding devices must be reprogrammed.
In addition, receivers that are not installed on cars as standard are equipped with a security coding system. The security coding system does not allow the receiver to be switched on after a power failure. The power may be interrupted not only when the cables are removed from the battery, but also when the radio is removed or when the corresponding fuse burns out. If the receiver is coded, the code should be found out before removing the cables from the battery. If the code is unknown, only the manufacturer of the radio can put the receiver into operation again.
Removal
Turn off the ignition and lighting of the car. This will prevent damage to electronic control units (e.g. engine control unit).
Open the engine compartment hood. The battery is in the compartment.
First disconnect the ground wire "1" from the battery, and then the positive wire "2".
Disconnect the retaining plastic "3" and remove.
Remove the battery.
Warning: Batteries contain toxic substances that should not be disposed of in your regular household waste. Old batteries should be taken to special waste collection points.
Installation
Before installation, polish the battery terminals until shiny with a wire brush. To prevent corrosion, coat both terminals with a special acid-resistant compound, such as BOSCH-Polfett.
Install the battery.
Place the retaining plate in place without tightening it too much.
Connect the positive wire to the positive (+) terminal, and then the ground wire to the negative terminal.
Caution: Connecting the battery with reverse polarity may cause significant damage to the generator and other electrical devices.
Place the plastic cover on the positive terminal.
If necessary, reprogram the radio receiver.
Set the time on the clock.