Mercedes-Benz B-Class 2011, Owner'S Manual

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Position number B identifies the charged battery of the other vehicle or an equivalent jump-
starting device.
X
Press together cover : of positive clamp ; and slide it back.
X
Connect positive terminal ; on your vehicle to positive terminal = of donor battery B
using the jump lead, beginning with your own battery.
X
Start the engine of the donor vehicle and run it at idling speed.
X
Connect negative terminal ? of donor battery B to earth point A of your vehicle using
the jump lead, connecting the jump lead to donor battery B first.
X
Start the engine.
X
Before disconnecting the jump leads, let the engine run for several minutes.
X
Turn the key to position 0 in the ignition lock and remove it.
X
First, remove the jump leads from earth point A and negative terminal ? , then from pos-
itive terminal ; and positive terminal = , each time beginning at the contacts on your own
vehicle first.
X
Close cover : of positive terminal ; after removing the jump leads.
X
Have the battery checked at a qualified specialist workshop.
i
Jump-starting is not considered to be a normal operating condition.
i
Jump-starting cables and further information regarding jump starting can be obtained at
any qualified specialist workshop.
Towing and tow-starting
Important safety notes
G
WARNING
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
there is a malfunction in the power supply
or the vehicle's electrical system.
The power assistance for the steering and the
brake force booster do not work when the
284
Towing and tow-starting
Breakdown
assistance