Checking the battery (Opel Vectra B)

Periodically, approximately once every three months, check the battery charge level. If the car battery is discharged, the engine can be started from an external battery:

connect one end of the large red wire to the positive terminal of the discharged battery;
connect the other end of the red wire to the positive terminal of the external battery;
connect one end of the heavy gauge black wire to the negative terminal of the external battery;
connect the other end of the black wire to the power unit or to a body element of the car being started away from the battery;
make sure the wires do not come into contact with the fan, drive belts, or other rotating parts of the engine;
start the engine using an external source (in this case, the engine of the source vehicle must be idling).

After starting the engine of a car with a discharged battery, disconnect the wires in the reverse order.

1. The battery is located on the left front side of the engine compartment. To access the battery terminals, remove the protective cover.

2. Check the tightness of the battery clamps (A) and the integrity of the wire insulation (B).

3. If there is corrosion on the battery terminals in the form of a white, loose coating, disconnect the terminals from the battery and clean them with a small wire brush.