WARNING
● A discharged battery may already freeze at temperatures just below 0 °C.
In case of frozen battery carry out no jump-starting - risk of explosion!
● Please pay attention to the warning instructions relating to working in the
engine compartment ⇒ page 181, Working in the engine compartment
.Note
● There must not be any contact between the two vehicles otherwise current
may flow as soon as the negative terminals are connected.
● The discharged battery must be properly connected to the system of the vehi-
cle.
● Switch off any mobile phone, pay attention to the instructions for use of the
mobile phone in such a situation.
● We recommend you buy jump-start cables from a car battery specialist.
Start engine Fig. 171 Jump-starting using the battery
from another vehicle: A - flat vehicle bat-
tery, B - battery providing current
It is important to connect the jump-start cables in the correct order.
Connecting positive terminals
– Attach one end 1
⇒
fig. 171 to the positive terminal of the discharged battery
A .
– Attach the other end 2 to the positive terminal of the battery supplying the
power B . Connecting negative terminal and engine block
– Attach one end 3 to the negative terminal of the battery supplying the power
B .
– Attach the other end 4 to a solid metal part which is connected firmly to the
engine block, or to the engine block itself.
Starting engine
– Start the engine of the vehicle providing current and run the engine at idling
speed.
– Now start the engine of the vehicle with the discharged battery.
– Interrupt the attempt at starting an engine after 10 seconds if it does not start
right away and wait for about 30 seconds before repeating the attempt.
– Disconnect the cables on the engine in exactly the reverse order they were
connected up. WARNING
● The non-insulated parts of the terminal clamps must never make contact
with each other. In addition, the jump-start cable connected to the positive
terminal of the battery must not come into contact with electrically conduct-
ing parts of the vehicle - risk of short circuit!
● Do not affix the jump starting cables to the negative terminal of the dis-
charged battery. There is the risk of detonating gas seeping out the battery
being ignited by the strong spark which results from the engine being started.
● Run the jump-start cables so that they cannot be caught by any rotating
parts in the engine compartment.
● Do not bend over the batteries - risk of caustic burns!
● The vent screws of the battery cells must be tightened firmly.
● Keep any sources of ignition (naked flame, smouldering cigarettes etc.)
away from the battery - risk of an explosion!
● Never jump-start the batteries which have a too low electrolyte level - risk
of explosion and caustic burns! 207
Breakdown assistance Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
