If necessary, the engine can be started by connecting it to the battery of another vehicle.
If the engine fails to start because of a discharged battery, the vehicle battery can be connected to the battery of 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.
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 the car telephone if necessary. Details will be given in the manufacturer's instructions for the car telephone.