Mercedes-Benz 2004 E-Class OCS Operator's Manual page 329

Practical hints
What to do if ...
Display symbol Display messages
#
Battery/Alternator
Stop vehicle!
Undervoltage
Charge battery
Malfunction
Electrical consumers
switched off
(
Backrest rear right
not locked
Backrest rear left
not locked
328
Possible cause
The battery is malfunctioning.
The SBC brake system requires electrical
energy and therefore has only limited op-
eration. Considerably greater brake pedal
force is required and the stopping dis-
tance is increased.
The battery has insufficient voltage.
The consumer battery has insufficient
voltage and can no longer supply the con-
venience functions such as seat ventila-
tion*.
The rear seat backrest is not engaged.
The rear seat backrest is not engaged.
Possible solution
Stop the vehicle as soon as it is safe
to do so. Adjust driving to be consis-
tent with reduced braking responsive-
ness.
Notify an authorized Mercedes-Benz
Center.
Start the engine ( page 43).
The electrical consumers will come back
online as soon as on-board voltage is suf-
ficient.
Adjust the rear seat backrest until it is
fully engaged in position.
Adjust the rear seat backrest until it is
fully engaged in position.