Otherwise, gases or battery acid could escape.
R
Make sure that the detachable parts are con-
nected in the same way as before.
Disconnecting the auxiliary battery in the engine
compartment
*
NOTE Damage to electrical major assem-
bly due to disconnecting incorrectly
Electrical major assemblies could be damaged
if the starter battery is disconnected while the
vehicle is running.
#
Switch off the vehicle. Then, release the
battery clamps of the starter battery.
#
Always disconnect the starter battery in
the battery case in the left footwell first.
Otherwise, electrical major assemblies,
e.g. the alternator, could be damaged.
*
NOTE Damage to the vehicle's electronics
Incorrectly disconnecting the auxiliary battery
can cause damage to the vehicle's electronics.
#
Always disconnect the auxiliary battery
as described in the following sequence.
Do not reverse the battery terminals
under any circumstances.
#
Observe the safety measures and protection
notices when disconnecting the auxiliary bat-
tery (
/
page 229).
#
Switch off all electrical consumers.
#
Switch off the vehicle.
#
Open the hood (
/
page 212).
#
First loosen and remove the negative terminal
clamp on the auxiliary battery so that the
clamp is no longer in contact with the terminal.
#
Remove the positive terminal clamp cover.
#
Loosen and remove the positive terminal
clamp.
Overview of permissible towing methods
In the event of a breakdown, Mercedes-Benz rec-
ommends that you have the vehicle transported
instead of towed.
*
NOTE Damage to the vehicle due to towing
away incorrectly
#
Observe the instructions and notes on
towing away.
%
Vehicles with automatic transmission and rear-
wheel drive: if there is a malfunction, the auto-
matic transmission may be locked in position
j
.
If the automatic transmission cannot be shif-
ted to position
i
, transport the vehicle
(
/
page 237). A towing vehicle with lifting
equipment is required for vehicle transport.
234 Breakdown assistance