Towing And Tow-Starting - Mercedes-Benz M-Class Owner's Manual

Switch off all electrical consumers (e.g. radio, blower, etc.).
X
Open the bonnet (
X
Y
Position number B identifies the charged battery of the other vehicle or an equivalent jump-
starting device.
Slide cover : of positive terminal ; in the direction of the arrow.
X
Connect positive terminal ; on your vehicle to positive terminal = of donor battery B
X
using the jump lead, beginning with your own battery.
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
X
the jump lead, connecting the jump lead to donor battery B first.
Start the engine.
X
Allow the engine to run for a few minutes before disconnecting the jump lead.
X
First, remove the jump lead from earth point A and negative terminal ?, then from positive
X
terminal ; and positive terminal =, each time disconnecting from the contacts on your
own vehicle first.
After removing the jump lead, close cover : on positive terminal ;.
X
Have the battery checked at a qualified specialist workshop, e.g. a Mercedes-Benz Service
X
Centre. The jump-starting procedure is not a standard operating state; therefore, have the
battery checked.

Towing and tow-starting

Important safety notes
Observe the legal requirements for the rele-
vant countries when towing.
page 318).
Towing and tow-starting
G WARNING
If you tow the vehicle, you must use a rigid
towing bar if:
349
Z