Mercedes-Benz B-Class Owner's Manual page 340

Frequent operation in mountainous terrain or
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on poor road surfaces
When the engine is o en le idling for long
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periods
Operation in particularly dusty conditions
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and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, have the
interior air lter, air lter, engine oil and oil lter,
for example, changed more frequently. The tyres
must be checked more frequently if the vehicle is
operated under increased loads. Further informa-
tion can be obtained at a quali ed specialist work-
shop.
Batt Batter ery disconnection per y disconnection periods iods
The ASSYST PLUS service interval display can cal-
culate the service due date only when the battery
is connected.
Display and note down the service due date
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on the instrument display before disconnect-
ing the battery ( page 336).
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Engine compar Engine com partment tment
A A ctiv ctive bonne e bonnet (pedes t (pedestr trian prot ian protection) ection)
Operation of t Oper ation of the activ he active bonne e bonnet (pedes t (pedestr trian prot
tion) tion)
In certain accident situations, the actuation of the
active bonnet reduces the risk of injury to pedes-
trians. The rear area of the bonnet is raised by
approximately 70 mm.
For the drive to the workshop, reset the actuated
active bonnet yourself ( page 337).
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A er the active bonnet has been actuated, pedes-
trian protection may be limited.
Have the full functionality of the active bonnet
restored in a quali ed specialist workshop.
R R ese esetting t tting the activ he active bonnet e bonnet
& W W ARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system.
Allow the engine to cool down and only
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touch component parts described in the
following.
ian protec- ec-
With your hand at, push down active bonnet
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1 in the area around the hinges on both
sides (arrows).
In doing so, the actuator is depressurised and
you may hear a hissing sound.
The engine bonnet must engage in position.
If the active bonnet can be raised slightly at
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the rear in the area of the hinges, repeat the
step until it engages correctly.
Maintenance and care 337 337