Mercedes-Benz B-Class 2011, Owner'S Manual

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Problem Possible causes/consequences and M Solutions
Vehicles with a petrol
engine:
The engine is not run-
ning smoothly and is
misfiring.
There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X
Have the cause rectified immediately at a qualified specialist
workshop.
The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit and a
warning tone may
sound.
The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X
Check the coolant level (
Y
page 265). Observe the warning
notes as you do so and top up the coolant if necessary.
If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X
Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic.
Manual transmission
Important safety notes
G WARNING
The movement of the pedals must not be
impaired in any way. Do not keep any objects
in the driver's footwell. Make sure that floor-
mats or carpets are correctly secured and
that there is sufficient clearance for the ped-
als.
Do not place several floormats on top of one
another.
G WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you
to lose control of your vehicle and cause an
accident.
Gear lever
!
Only engage gear when the clutch pedal
is depressed.
!
When shifting between 5th and 6th gear,
you should always push the gear lever all
the way to the right. Otherwise, you could
shift unintentionally into 3rd or 4th gear
and damage the transmission.
If you shift down at too high a speed (trans-
mission braking), this can cause the engine
to overrev, leading to engine damage.
Do not use the clutch bite point to keep the
vehicle stationary on uphill gradients.
There is otherwise a risk of damaging the
clutch.
Manual transmission
133
Driving
and
parking
Z