Mercedes-Benz B-Class 2011 Owner's Manual page 244

Warning and indicator lamps in the instrument cluster
Problem
Driving systems
Problem
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
A warning tone also
sounds.
Possible causes/consequences and M Solutions
Leave the vehicle and keep a safe distance from the vehicle until
X
the engine has cooled down.
Check the coolant level and top up the coolant (
X
Observe the warning notes as you do so.
If you have to top up the coolant frequently, have the engine
X
cooling system checked.
Make sure that the air supply to the engine radiator is not
X
blocked, e.g. by frozen slush.
If the coolant temperature is less than 120 †, you can continue
X
driving to the nearest qualified specialist workshop.
Avoid heavy loads on the engine as you do so, e.g. driving on
X
mountain roads and stop-start traffic.
Possible causes/consequences and M Solutions
The distance to the vehicle in front is too small for the speed
selected.
Increase the distance.
X
You are approaching a vehicle or a stationary obstacle in your line
of travel at too high a speed.
Be prepared to brake immediately.
X
Pay careful attention to the traffic situation. You may have to
X
brake or take evasive action.
241
page 265).
Y
Z