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Example: decoupling element between the engine
and the exhaust pipe
Check the decoupling element of exhaust sys‐
#
tem
1
for visible damage, e.g. cracks.
The decoupling element is a wear part and
must be checked regularly.
®
BlueTec
4 vehicles and BlueTec
the decoupling element must be replaced
immediately if there is damage.
®
BlueTec
6 vehicles: the decoupling element
must be replaced immediately if there is dam‐
age and/or leaks. Traces of soot on the
decoupling element signify leakage.
Make sure that the vehicle is loaded correctly.
#
Make sure that the dropside and exterior
#
flaps are locked securely and not damaged.
Fold/push in and lock folding/extendible
#
steps before driving.
Fold the folding underride guard to the road
#
position.
Fit and secure the mudguard centre part
#
when operating the vehicle without a semi‐
trailer.
Fold down the mud flaps.
#
In wintry conditions, remove snow and accu‐
#
mulations of ice from the towing vehicle and
trailer/semitrailer (
page 301).
/
Make sure that cables and compressed-air
#
lines are connected correctly (
Make sure that the semitrailer/trailer cou‐
#
pling is locked and secured correctly.
Observe the separate operating instructions
issued by the manufacturer for the operation,
care and maintenance of the semitrailer/
trailer coupling.
Have all faults and damage rectified. If necessary,
have the causes determined and rectified at a
qualified specialist workshop.
Activating driving systems
Activate Stability Control Assist
#
(
/
Vehicles with level control: set the driving
#
level (
Checking the emergency equipment/first-aid
kit (hard case)
%
There is an overview of emergency equip‐
ment and first-aid kits in the "Breakdown
assistance" section (
Check the following emergency equipment to
#
make sure that it is accessible, complete and
ready for use:
Safety vest
R
Warning triangle
R
Warning lamp
R
®
First-aid kit
5 vehicles:
R
Fire extinguisher
R
At regular intervals, check that the first-aid kit
#
is usable. Note the use-by dates of the con‐
tents.
Have the fire extinguisher checked every one
#
to two years.
The fire extinguisher must be refilled after
#
each use.
You must observe the legal requirements for the
country in which you are currently driving when
carrying emergency equipment.
Checking the vehicle lighting
Switch on the ignition.
#
If a bulb on the towing vehicle is faulty, the
on-board computer displays a corresponding
event window. In the case of a bulb failure,
the event window displays b and s for
the towing vehicle.
Check the vehicle lighting, turn signal lamps
#
and brake lamps on the towing vehicle and
trailer/semitrailer with the help of a second
page 290).
/
person.
or
Check the vehicle lighting using the vehicle
#
key lamp check (
or
Driving mode 197
page 229) or activate ASR (
page 263).
/
page 337).
/
page 42).
/
page 228).
/
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