Mercedes-Benz C-Class Saloon, Owner'S Manual

Page: 369 / 568

needs to be performed more often than speci‐
fied based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R
regular city driving with frequent intermedi‐
ate stops
R
mainly short-distance driving
R
frequent operation in mountainous terrain or
on poor road surfaces
R
when the engine is often left idling for long
periods
R
operation in particularly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, have the
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequently. The
tyres must be checked more frequently if the
vehicle is operated under increased loads. Fur‐
ther information can be obtained at a qualified
specialist workshop.
Battery disconnection periods
The ASSYST PLUS service interval display
can only calculate the service due date when
the battery is connected.
#
Note down the service due date displayed on
the instrument display before disconnecting
the battery (
→
page 366).
Engine compartment
Active bonnet (pedestrian protection)
Operation of the active bonnet (pedestrian
protection)
In certain accident situations, the risk of injury
to pedestrians can be reduced by the actuation
of the active bonnet. The rear area of the engine
bonnet is raised by approximately 85 mm.
For the drive to the workshop, reset the trig‐
gered active bonnet yourself. After the active
bonnet has been triggered, pedestrian protection
may be limited.
A qualified specialist workshop must re-instate
the full functionality of the active bonnet.
The active bonnet is not available in all coun‐
tries.
Resetting the active bonnet
& WARNING Danger of burns from hot
component parts in the engine compart‐
ment
Certain component parts in the engine com‐
partment may be very hot, e.g. the engine,
the radiator and parts of the exhaust system.
#
Let the engine cool down and only
touch the component parts described
below:
Maintenance and care 367