405 Practical hints
Batteries
Reconnecting the batteries
Turn off all electrical consumers.
Install starter battery in the designated
location in the engine compartment.
Install consumer battery in the desig-
nated location in the trunk.
Attach supports and brackets.
Tighten support and bracket screws.
Connect positive lead 3 of the con-
sumer battery and positive lead 1 of
the starter battery and fasten covers.
Connect negative lead 2 of the starter
battery.
Connect negative lead 4 of the con-
sumer battery.
Reinstall the trunk floor.
Rehook trunk luggage cover into hold-
ers.
!Always connect the batteries in the
order described below. Otherwise the
vehicle’s electronics can be damaged.!Never invert the terminal connections!
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):
Resynchronize the ESP
(page 341).
Resynchronize side windows
(page 195).
