
266Driving and operatingIn the case of trailer loads of
1200 kg or more, the vertical coupling load should not be less than 50 kg.
Rear axle load When the trailer is coupled and the
towing vehicle fully loaded (including all occupants), the permissible rear
axle load (see identification plate or
vehicle documents) can be exceeded by 15%. If the permissible rear axle
load is exceeded, a maximum speed
of 80 km/h applies and the tyre
pressure must be increased by 20
kPA / 0.2 bar.
Towing equipment For vehicles fitted with towing
equipment, when connected to a
trailer the pitch of the audible warning
changes upon operation of the turn
lights.
The pitch of the audible warning will
change if a turn light on the trailer or
the towing vehicle fails.Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle / trailer combination is
selectively braked until the snaking
ceases. While the system is working,
keep steering wheel as still as
possible.
Trailer stability assist is a function of
the Electronic Stability Control (ESC)
3 248.Auxiliary features
Power take-off
Activation
To activate the power take-off, with
the vehicle stationary and the engine
idling:
● Set the gearshift lever to neutral (vehicles with manual
transmission automated:
selector lever in position N).
● Depress the clutch pedal.

268Vehicle careVehicle careGeneral Information...................269
Accessories and vehicle modifications .......................... 269
Vehicle storage ........................269
End-of-life vehicle recovery .....270
Vehicle checks ........................... 270
Performing work ......................270
Bonnet ..................................... 270
Engine oil ................................. 271
Engine coolant ......................... 272
Power steering fluid .................273
Washer fluid ............................ 273
Brakes ..................................... 274
Brake fluid ............................... 274
Vehicle battery ......................... 274
Diesel fuel system bleeding .....276
Wiper blade replacement ........277
Bulb replacement .......................277
Headlights ............................... 278
Front fog lights ......................... 279
Front turn lights .......................279
Tail lights ................................. 280
Side turn lights ......................... 282
Centre high-mounted brake light ......................................... 282Number plate light...................283
Interior lights ............................ 284
Instrument panel illumination ...285
Electrical system ........................285
Fuses ....................................... 285
Engine compartment fuse box . 286
Instrument panel fuse box .......287
Load compartment fuse box ....288
Vehicle tools .............................. 290
Tools ........................................ 290
Wheels and tyres .......................291
Tyres ....................................... 291
Winter tyres ............................. 291
Tyre designations ....................291
Tyre pressure .......................... 291
Tyre pressure monitoring system .................................... 292
Tread depth ............................. 294
Changing tyre and wheel size . 295
Wheel covers ........................... 295
Tyre chains .............................. 295
Tyre repair kit .......................... 296
Wheel changing .......................299
Spare wheel ............................ 301
Jump starting ............................. 304
Towing ....................................... 306
Towing the vehicle ...................306
Towing another vehicle ...........307Appearance care .......................308
Exterior care ............................ 308
Interior care ............................. 310

290Vehicle careVehicle tools
Tools
Vehicles with spare wheel
The jack, wheel wrench, adapters (for
spare wheel removal), hub cap hook
and towing eye are contained in a
unit, stowed under the front seat.
Note
Depending on vehicle, there may be
multiple adapters for spare wheel
removal.
Vehicles with Rear-wheel drive: A hydraulic jack and a set of extension
pieces for use with the jack are also
included.
Separately supplied bolts must be
used for the temporary spare wheel.
These are allowed only for the
temporary spare wheel. Refer to an label on the temporary spare wheel.
Wheel changing 3 299.
Spare wheel 3 301.
Towing the vehicle 3 306.
Vehicles without spare wheel
Some vehicles are equipped with a
tyre repair kit instead of a spare
wheel.
To access this unit, slide the seat fully forwards and fold down the backrest.
If cover is fitted, raise cover slightly
and slide it backwards to remove.
Note
Do not attempt to remove the unit
from beneath the seat. Risk of injury.
Tyre repair kit 3 296.

292Vehicle careThe tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
highest pressure specified for this
tyre size.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the type of drive.
2. Identify the gross vehicle weight.
3. Identify the respective tyre.
The tyre pressure tables show all
possible tyre combinations 3 317.
For the tyres approved for your
vehicle, refer to the EEC Certificate of Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
Temperature dependency
Tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase.
Tyre pressure values provided on the
tyre information label and tyre
pressure chart are valid for cold tyres, which means at 20 °C. The pressure
increases by nearly 10 kPa (0.1 bar)
for a 10 °C temperature increase.
This must be considered when warm
tyres are checked.
Trailer towing
When towing a trailer with a fully laden vehicle, the tyre pressure must
be increased by 20 kPa / 0.2 bar
(3.0 psi) and the maximum speed
limited to 100 km/h.
Trailer towing 3 265.
Rear-wheel drive, with twin rear
wheels
When inflating the outer tyre, the
inflation tube should be passed
between the two wheels.
Tyre pressure monitoringsystem
The tyre pressure monitoring system
uses radio and sensor technology to
check tyre pressure levels.

306Vehicle care
Lead connection order:1. Connect the red lead to the positive terminal (1) of the booster
battery.
2. Connect the other end of the red lead to the jump start terminal (2)
of the vehicle with the discharged
vehicle battery.
3. Connect the black lead to the negative terminal (3) of the
booster battery.
4. Connect the other end of the black
lead to a vehicle grounding point
(4), such as the engine block or an
engine mounting bolt. Connect as
far away from the discharged
vehicle battery as possible,
however at least 60 cm.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump start.
2. After 5 minutes, start the other engine. Start attempts should be
made for no longer than
15 seconds at an interval of
1 minute.
3. Allow both engines to idle for approx. 3 minutes with the leads
connected.
4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle The towing eye and wheel wrench are
stowed with the vehicle tools 3 290.
Disengage the cover using a suitable
tool and remove.
Screw the towing eye clockwise into
the front towing point and tighten fully using the wheel wrench.
Attach a tow rope – or better still a tow
rod – to the towing eye, never to the
bumper or front suspension units.

Vehicle care307Caution
Do not tow the vehicle from the
rear. The front towing eye must
only be used for towing and not
recovering a vehicle.
Switch on ignition to permit operation
of brake lights, horn and windscreen
wipers, and move the steering wheel
slightly to release the steering wheel
lock.
Switch off the air suspension system 3 231.
Caution
Deactivate the driver assistance
systems like active emergency
braking 3 253, otherwise the
vehicle may automatically brake during towing.
Move the selector lever to neutral.
Release the parking brake.
Caution
Vehicles with manual
transmission automated: If neutral cannot be selected, the vehiclemust only be towed with the drive
wheels raised off the ground.
The vehicle should always be
towed with the ignition switched
off.
Manual transmission automated
3 241.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust fumes
from the towing vehicle, switch on the air recirculation system 3 209 and
close the windows.
Seek the assistance of a workshop.
After towing, unscrew the towing eye
and refit the cover.
Towing another vehicle
Attach a tow rope – or better still a tow
rod – to the rear towing eye, never to
the rear axle and suspension units.
Caution
The rear towing eye must only be
used for towing and not recovering a vehicle.

310Vehicle careUnderbody
Some areas of the vehicle underbody
have a PVC undercoating while other critical areas have a durable
protective wax coating.
After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen / rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Towing equipment
Do not clean the coupling ball bar with a steam-jet or high-pressure jet
cleaner.Interior care
Interior and upholstery Only clean the vehicle interior,
including the instrument panel fascia
and panelling, with a dry cloth or
interior cleaner.
Clean leather upholstery with clear
water and a soft cloth. In case of
heavy soiling, use leather care.
The instrument cluster and the
displays should only be cleaned using
a soft damp cloth. If necessary use a
weak soap solution.
Clean fabric upholstery with a
vacuum cleaner and brush. Remove
stains with an upholstery cleaner.
Clothing fabrics may not be
colourfast. This could cause visible discolourations, especially on light-
coloured upholstery. Removable
stains and discolourations should be
cleaned as soon as possible.
Clean seat belts with lukewarm water or interior cleaner.Caution
Close Velcro fasteners as open
Velcro fasteners on clothing could damage seat upholstery.
The same applies to clothing with
sharp-edged objects, like zips or
belts or studded jeans.
Plastic and rubber parts
Plastic and rubber parts can be
cleaned with the same cleaner as
used to clean the body. Use interior cleaner if necessary. Do not use any
other agent. Avoid solvents and petrol in particular. Do not use high-
pressure jet cleaners.

Body conversions333
Using the safety prop1. Prepare the tipper body for tipping
to the rear.
2. Raise the tipper fully.
3. Raise the safety prop to align with
support on the tipper.
4. Lower the tipper body until the safety prop is in contact with the
tipper.
Stowing the safety prop:
1. Raise the tipper body sufficiently to release the safety prop from its
support.
2. Lower the safety prop into the stowed position.
3. Lower the tipper body.
Hydraulic oil levelCaution
Before any inspection work can be carried out the safety prop must be
in position.
With the tipper fully raised, the
hydraulic oil level must be between
the MIN and MAX marks.Caution
Only use products that have been
tested and approved. Damage
resulting from the use of
nonapproved materials will not be
covered by the warranty.
The use of additives could cause
damage and invalidate the
warranty.
Check the hydraulic oil level after long
driving on bumpy or steep roads.
Have the cause of the loss of
hydraulic oil remedied by a workshop.
Use only hydraulic oil type SAE 10
(ISO 32), or a type Q8 ELI 1298L
suitable for Class 1 conditions.