Mercedes Benz 2007 r 320 cdi User Manual

Page of 570
508
Practical hints
Battery
Disconnecting, removing, reinstalling 
and reconnecting the battery
Step 1 (Disconnecting)
Set the automatic transmission to 
position P (
Firmly depress the parking brake 
(
Turn off the engine (
Leave the ignition switched on 
(
!
Never loosen or detach battery terminal 
clamps while the engine is running or the 
SmartKey is in the starter switch. Otherwise the 
alternator and other electronic components 
could be severely damaged.
Have the battery checked regularly by an autho-
rized Mercedes-Benz Light Truck Center.
Contact your authorized Mercedes-Benz Light 
Truck Center for further information.
Warning!
G
Do not place metal objects on the battery as 
this could result in a short circuit. 
Use leak-proof battery only to avoid the risk 
of acid burns in the event of an accident.
Warning!
G
Disconnecting, removing, reinstalling and 
reconnecting the battery is a complicated 
and technically demanding procedure that 
also requires safety precautions to avoid the 
risk of injury. We strongly recommend that it 
be performed by a qualified technician or an 
authorized Mercedes-Benz Light Truck 
Center only. Please read the instructions 
fully before beginning operation and only 
undertake it if you feel fully capable of 
performing all of the tasks involved as 
described in these instructions. Observe all 
safety instructions and precautions when 
handling automotive batteries 
page 506). Performing the tasks involved 
incorrectly can cause damage to the vehicle 
and impair the operating safety of the 
vehicle, and/or cause severe injury to you 
or others.
i
With a disconnected battery you will no long-
er be able to turn the SmartKey in the starter 
switch and pressing the KEYLESS-GO* 
start/stop button will have no effect.
i
If your battery is discharged, the vehicle 
must be jump started (
jump start contacts in the engine compartment, 
or an accessory battery charge unit* approved 
by Mercedes-Benz must be connected using the 
jump start contacts in the engine compartment 
(see separate instructions for the accessory 
battery charge unit*) before any of the following 
steps can be performed. If the battery cannot be 
jumped or charged, please contact an autho-
rized Mercedes-Benz Light Truck Center.