Mercedes-Benz CL-Class 2013 Owners Manual - Manual (Page 446)

Position number A identifies the charged battery of the other vehicle or an equivalent jump-
starting device.
X Remove the cover from positive terminal :.
X Connect positive terminal : on your vehicle to positive terminal ; of donor battery A
using the jumper cable, 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 A to ground point ? of your vehicle using
the jumper cable, connecting the jumper cable to donor battery A first.
X 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
positive terminal : and positive terminal ;, each time disconnecting from the battery on
your own vehicle first.
X Have the battery checked at a qualified specialist workshop.
i 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
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
444
Towing and tow-starting
Breakdown
assistance