Mercedes-Benz E 400 HYBRID Operating Instructions Manual page 37

Internal combustion engine
Display messages
~
Malfunction
#
Vehicle
Display messages
d
Malfunction
Possible causes/consequences and M Solutions
The hybrid system is malfunctioning.
Visit a qualified specialist workshop.
X
The battery is not being charged.
A warning tone also sounds.
Possible causes are:
faulty power electronics
R
a torn poly-V-belt
R
a malfunction in the electronics
R
Pull over and stop the vehicle safely and switch off the engine,
X
paying attention to road and traffic conditions.
Secure the vehicle to prevent it from rolling away.
X
Open the hood.
X
Check whether the poly-V-belt is torn.
X
Possible causes/consequences and M Solutions
The drive system is malfunctioning. The ECO start/stop function
may not be working and the vehicle may accelerate more slowly
than usual.
Visit a qualified specialist workshop.
X
Display messages
35