Mercedes-Benz E-Class Owner's Manual page 335

Jump-starting
332
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. Always begin with positive terminal ; on your own vehicle first.
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
Before disconnecting the jump leads, let the engines run for several minutes.
X
First, remove the jump leads from earth point A and negative terminal ?, then from pos-
X
itive terminal ; and positive terminal =, each time beginning at the contacts on your own
vehicle first.
Close cover : of positive terminal ; after removing the jump leads.
X
Have the battery checked at a qualified specialist workshop.
X
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.