Towing and tow-starting
280
X
Connect negative terminal
3
of the donor
battery to negative terminal
4
of your
vehicle's battery using the jump lead, con-
necting the jump lead to the donor battery
first.
X
Start the engine.
X
Electrical consumers can be switched on
again. Do not switch the lights on, however,
as this will overload the battery.
X
Remove the jump lead from earth
point
4
and negative terminal
3
first,
then from positive terminals
1
and
2
,
each time disconnecting from the battery
on your own vehicle first.
X
Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
Towing and tow-starting
Points to remember
G
Risk of accident
If you tow the vehicle, you must use a rigid
towing bar if:
R
the engine is not running
R
there is a brake system malfunction
R
the voltage supply or the vehicle's elec-
trical system is damaged
The electric power steering and the brake
force booster do not work when the engine
is not running. Greater braking force will
then be required and the brake pedal travel
will be longer. If necessary, depress the
brake pedal with maximum force.
Do not tow the vehicle if the key cannot be
turned in the ignition lock. If this is the case,
the steering is locked and the vehicle can-
not be steered.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
G
Risk of accident
The SBC
®
brake system requires electrical
power. The SBC
®
brake system enters
emergency mode if there are faults in the
power supply or the vehicle's electrical sys-
tem. Greater braking force will then be
required and the brake pedal travel and
braking distance will be longer. If neces-
sary, depress the brake pedal with maxi-
mum force.
The vehicle is braked if SBC
®
HOLD is acti-
vated. Therefore, deactivate SBC
®
HOLD if
the vehicle is to be towed.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
It is better to have the vehicle transported
than to have it towed.
When towing, observe the legal requirements
in all countries concerned.
!
When towing, pull away slowly and with-
out jerking. If the tractive power is too high,
the vehicles could be damaged. Do not use
the towing eye for recovery.
Practical advice
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