If necessary, the engine can be started by connecting it to the battery of another vehicle.
(Applies to vehicles with plug-in hybrid drive: ) The position of the terminals for the jump-start cable is different link►.
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 V. 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.
- (Applies to vehicles with plug-in hybrid drive: ) Do not jump-start another vehicle. This would cause serious damage to your vehicle s electrical system link►.
- 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.
- The engine compartment is a potentially hazardous area and working here can lead to serious injuries. Before carrying out any work in the engine compartment please read and observe the warnings link►.
- Incorrect handling of the jump leads may result in the vehicle battery exploding (risk of serious injury). Please observe the following rules to minimise the risk of injury:
- The non-insulated parts of the battery clamps must not be allowed to touch. The jump lead attached to the positive terminal must not touch metal parts of the vehicle: this can cause short circuiting.
- Position the jump leads in such a way that they cannot come into contact with any moving parts in the engine compartment.
- Do not lean over the vehicle battery - risk of chemical burns!
- The screw plugs on the battery cells must be screwed in firmly.
- Keep sparks, flame and lit cigarettes away from vehicle batteries: the gases given off can cause an explosion.
- Do not attach the negative cable to parts of the fuel system or to the brake pipes.
- The vehicles must not touch each other, otherwise electricity could flow as soon as the positive terminals are connected and the boosting battery could be discharged.
- If the jump leads are not connected correctly this can result in serious damage to the electrical system of the vehicle.
- The discharged vehicle battery must be properly connected to the vehicle s electrical system.
- Please note that the method described below for connecting the leads is intended for jump-starting your vehicle. If jump-starting another vehicle, you should not connect the negative lead (–) to the negative terminal of the discharged battery, but directly to the engine block or a solid metal part bolted to the engine block. If the battery of the other vehicle does not have a gas vent, there is a risk that a mixture of oxygen and hydrogen gas can accumulate and cause an explosion.
Note
Switch off the car telephone if necessary. Details will be given in the manufacturer s instructions for the car telephone.