If the engine cannot be started because the 12-volt vehicle battery is discharged, another vehicle can be used to jump start the vehicle.
NOTICE
A discharged 12-volt vehicle battery can already freeze at temperatures around 0°C (around +32°F) and can be damaged and fail.
● Always replace a 12-volt vehicle battery which is frozen or has been frozen.
Preparations
Observe the following when performing jump starting:
—Wear eye protection and protective gloves →
.
—Observe the jump lead manufacturer’s operating instructions.
—Open the bonnet.
—When performing jump starting, always use jump leads with fully-insulated terminal clamps and defect-free insulation →
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—Make sure that there is sufficient distance between the vehicle providing jump starting assistance and the vehicle receiving it. If the
vehicles touch metallically, current can already flow when the positive terminals are connected →
—Ensure that the terminal clamps have good metal-to-metal contact with the terminals.
.
WARNING
Jump starting the vehicle incorrectly can cause the 12-volt vehicle battery to explode, which can lead to serious injuries.
● Always wear suitable eye protection and protective gloves.
● Never bend over the 12-volt vehicle battery.
● Always first connect the positive lead and then the negative lead.
● Never connect the negative lead to parts of the fuel system or to the brake lines.
● Make sure that there is no contact between the uninsulated parts of the terminal clamps.
● Make sure that the insulation of the leads is in perfect condition.
● Do not allow the lead attached to the positive battery terminal on the 12-volt vehicle battery to touch electrically conductive parts
of the vehicle.
Jump leads
A suitable jump lead is needed in order to jump start another vehicle or have your vehicle jump started.
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The cable cross-section of the jump leads must be at least 25 mm (0,038 in ). For vehicles with a diesel engine, the cable cross-
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section of the jump leads must be at least 35 mm (0.054 in ).
Vehicle receiving jump starting assistance
1. Make sure that the discharged 12-volt vehicle battery is properly connected to the 12-volt vehicle electrical system.
2. If a 12-volt vehicle battery with a battery window is installed, check the colour of the window . If the battery window is light
yellow or colourless, do not jump start the vehicle. Seek expert assistance.
Vehicle providing jump starting assistance
1. Observe the vehicle manufacturer’s operating instructions.
2. Make sure that the vehicle battery providing assistance has the same voltage (12 volts) and approximately the same capacity as
the flat 12-volt vehicle battery. Observe the information on the label of the vehicle battery in the vehicle providing jump starting
assistance.
NOTICE