If the engine fails to start because of a discharged battery, you can use another vehicle to start the engine. Suitable jump leads are required.
Both vehicle batteries must be rated at 12 Volts. The capacity (Ah) of the booster battery should not be significantly lower than that of the discharged battery.
Jump leads
The jump leads must be heavy enough to carry the starter current. Refer to the details given by the manufacturer.
Only use jump leads with insulated battery clamps.
Positive cable – usually red.
Negative cable – usually black.
WARNING
- When it is discharged the vehicle battery can freeze at temperatures around 0°C. A frozen vehicle battery must first be thawed out before connecting the jump leads - risk of explosion and chemical burns! After jump-starting the vehicle, drive to a qualified workshop without delay and have the vehicle battery checked.
- Note the safety warnings referring to working in the engine compartment link►.
- Incorrect handling of the jump leads may result in the vehicle battery exploding (risk of serious injury).
CAUTION
If the jump leads are not connected correctly this can result in serious damage to the electrical system of the vehicle.
Note
- There must be no contact between the two vehicles as otherwise current could flow as soon as the positive terminals are connected. This would discharge the boosting battery.
- The discharged vehicle battery must be properly connected to the vehicle s electrical system.
- Switch off any electrical equipment you do not need.