Mercedes-Benz C-Class Operator's Manual page 356

Towing and tow-starting
354
Connect negative terminal = of donor battery B to ground point ? of your vehicle using the
X
jumper cable, connecting the jumper cable to donor battery B first.
Start the engine.
X
Before disconnecting the jumper cables, let the engine run for several minutes.
X
First, remove the jumper cables from ground point ? and negative terminal =, then from pos-
X
itive clamp : and positive terminal ;. Begin each time at the contacts on your own vehicle first.
Close cover A of positive terminal : after removing jumper cables.
X
Have the battery checked at a qualified specialist workshop.
X
PLUG-IN HYBRID vehicles: if your vehicle has been jump-started, it may not be possible to use the
electric drive for approximately 30 minutes.
Jump-starting is not considered to be a normal operating condition.
i
Jumper cables and further information regarding jump-starting can be obtained at any qualified
specialist workshop.
Towing and tow-starting
Important safety notes
G
WARNING
Functions relevant to safety are restricted or
no longer available if:
the engine is not running.
R
the brake system or the power steering is
R
malfunctioning.
there is a malfunction in the voltage supply
R
or the vehicle's electrical system.
If your vehicle is being towed, much more
force may be necessary to steer or brake.
There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
G
WARNING
You can no longer steer the vehicle if the
steering wheel lock has been engaged. There
is a risk of an accident.
Always switch off the ignition when towing the
vehicle with a tow cable or a tow bar.
G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
the towing eye could detach itself
R
the vehicle/trailer combination could roll-
R
over.
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per-
missible gross weight of your vehicle.
Details on the permissible gross vehicle weight
of your vehicle can be found on the vehicle iden-
tification plate ( page 387).
Y
!
When COLLISION PREVENTION ASSIST
PLUS, DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automatically
in certain situations. To avoid damage to the
vehicle, deactivate these systems in the fol-
lowing or similar situations:
when towing the vehicle
R
in the car wash
R
!
Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
!
Secure the tow rope or tow bar to the towing
eye only. Otherwise, the vehicle could
become damaged.
!
Do not use the towing eye for recovery. This
could damage the vehicle. If in doubt, have
the vehicle recovered using a crane.