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The essentials
››› in Notes on page 79
››› page 79
Tow-starting
If the engine will not start, first try starting it
usin
g the battery of another vehicle
››› page 52. You should only attempt to tow-
start a vehicle if charging the battery does
not work. This is done by leveraging wheel
movement.
When tow-starting a vehicle with a petrol en-
gine, do not tow it more than a short dis-
tance, otherwise unburned fuel can enter the
catalytic converter.
However, if your vehicle has to be tow-star-
ted:
●
Engage 2
nd
or 3
rd
ge
ar.
●
Keep the clutch pressed down.
●
Switch the ignition on.
●
Once both vehicles are moving, release the
clutch.
●
As soon as the engine starts, press the
clutch and move the gear lever into neutral.
This helps to prevent driving into the towing
vehicle.
››› in Notes on page 79
››› page 79
How to jump start
Jump l
e
a
ds
The jump lead must have a sufficient wire
cro
ss section.
If the engine fails to start because of a dis-
charged battery, the battery can be connec-
ted to the battery of another vehicle to start
the engine.
Jump leads
Jump leads must comply with standard DIN
72553 (see cable manufacturer's instruc-
tions). The wire cross section must be at least
25 mm
2
for petrol engines and at least
35 mm
2
for diesel engines.
Note
●
The vehic
les must not touch each other,
otherwise electricity could flow as soon as
the positive terminals are connected.
●
The discharged battery must be properly
connected to the on-board network.
How to jump start: description
Fig. 70 Diagram of connections for vehicles
w
ithout
Start-Stop system.
Fig. 71 Diagram of connections for vehicles
w
ith
St
art-Stop system.
Jump lead terminal connections
1. Switch off the ignition of both vehicles
›
›
›
.
52
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