Mercedes-Benz B-Class 2011 Owner's Manual page 242

Warning and indicator lamps in the instrument cluster
Problem
æ
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.
?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the
start of the scale.
Possible causes/consequences and M Solutions
The fuel level has dropped into the reserve range.
Refuel at the nearest filling station.
X
The temperature sensor for the coolant temperature gauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
Stop the vehicle immediately, paying attention to road and traf-
X
fic conditions, and switch off the engine. Do not continue driving
under any circumstances.
Apply the parking brake.
X
Consult a qualified specialist workshop.
X
239
Z