trailer MERCEDES-BENZ B-CLASS HATCHBACK 2008 Owner's Manual

Service
191
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
X To switch the switched power supply on
or off: turn the key in the ignition lock to
position 2or 0, respectively. Trailer with 7-pin connector
If your trailer has a 7-pin connector, you can
connect it to the 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Both of these can be obtained
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter 1
Connector with lug
2 Socket with groove X
Fold down socket .
X Open the socket cover.
X Insert the connector with lug 1into
groove 2on the socket and turn the con-
nector clockwise to the stop.
X Make the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
! Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering. Service
ASSYST PLUS service interval display
The ASSYST PLUS service indicator informs
you of the next service due date. The multi-
function display shows the service due date:
Service A due in ..days
Service A due in .. km
Service A due now Next service due (example)
The letter indicates how much time the work-
shop will require to carry out the service work.
The letters displayed range from
Afor a short
service duration to Hfor a long service dura-
tion.
The ASSYST PLUS service interval indicator
does not take into account any periods of Operation
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Care
196
i
The cover cannot be removed.
Cleaning the exhaust tail pipes Dirt combined with the effects of road grit and
corrosive environmental factors may cause
flash rust to form on the surface.
Regular care of the exhaust tail pipes will
ensure that their original shine is restored.
! Do not clean the exhaust tail pipes with
alkaline-based cleaning agents such as
wheel cleaner.
Use the chrome-cleaning agent recommen-
ded by Mercedes-Benz for cleaning. Infor-
mation about chrome-cleaning agents can
be obtained from any Mercedes-Benz
Service Centre. Cleaning Parktronic* The sensors are located in the front and rear
bumpers.
1
Parktronic* sensors in the left-hand side
of the front bumper.
X Clean sensors 1in the bumper with water,
car shampoo and a soft cloth.
! Do not use dry, coarse or hard cloths and
do not scrub. You will otherwise scratch or
damage the sensors. If you intend to use a
high-pressure cleaner or a steam cleaner to
clean the sensors, observe the instructions
issued by the equipment manufacturer
concerning the distance to be maintained
between the nozzle of the high-pressure
cleaner and the vehicle. Trailer coupling*
The ball coupling must be cleaned if it
becomes dirty or corroded.
X Remove any rust using a wire brush.
X Remove dirt with a clean, lint-free cloth or
a brush.
! Do not clean the ball coupling with a high-
pressure cleaner. Do not use solvents. 1
Locking balls
2 Guide pin
3 Guide faces
4 Release lever
5 Ball neck head Operation
* optional
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Care
197
X
Lightly oil or grease positions 1to5 and
the ball coupling recess of the vehicle after
cleaning.
X Treat the lock with an oil that is acid and
resin-free.
X Check that the vehicle's trailer coupling is
working properly.
! Observe the note on care provided by the
trailer manufacturer.
i Maintenance of the ball coupling and
trailer coupling can also be performed by
any Mercedes-Benz Service Centre. H
Environmental note
Dispose of oily and greasy cloths in an envi-
ronmentally-responsible manner. Operation
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Display
messages 216 Display messages Possible cause/consequence Possible solution
. Cornering light
left
or
Cornering light
right The left-hand or right-hand cornering
light* is faulty. X
Change the bulb (Y page 244). . Dipped-beam left
or
Dipped-beam right Vehicles with the light and visibility pack-
age*: the left-hand or right-hand dipped-
beam headlamp is faulty. X
Halogen headlamp: replace the bulbs
(Y page 244).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. . Active light func-
tion currently
inoperative
The active light function* is faulty. X
Visit a qualified specialist workshop. . AUTO lights inop-
erative The light sensor is faulty. The constant
headlamp mode (daytime driving lights) is
switched on. X
Switch the lights to manual control in the on-
board computer (Y page 108).
X Switch the lights on and off using the light
switch. . Trailer turn sig-
nal left
or
Trailer turn sig-
nal right The left-hand or right-hand trailer turn sig-
nal lamp is faulty. X
Change the bulb. Practical advi
ce
* optional
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Display
messages 217Display messages Possible cause/consequence Possible solution
. Trailer tail lamp
left
or
Trailer tail lamp
right The left-hand or right-hand trailer tail light
is faulty. X
Change the bulb. . Turn signal rear
left
or
Turn signal rear
right The rear left-hand or rear right-hand turn
signal is faulty. X
Change the bulb (Y page 244). . Turn signal left
mirror
or
Turn signal right
mirror The turn signal in the left-hand or right-
hand exterior mirror is faulty. This display
message will only appear if all LEDs are
faulty. X
Visit a qualified specialist workshop. . Turn signal front
left
or
Turn signal front
right The front left-hand or front right-hand turn
signal is faulty. X
Change the bulb (Y page 244). . Brake lamp left
or
Brake lamp right Vehicles with light and visibility pack-
age*: the left-hand or right-hand brake
lamp is faulty. X
Change the bulb (Y page 244). Practical advi
ce
* optional
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Troubleshooting
240 Trailer towing
Problem Possible cause/consequence Suggested solutions
The ball coupling cannot be
locked.
The key cannot be removed from
the ball coupling.
G
Risk of accident
The ball coupling is dirty.
The trailer tow hitch is damaged. X
Remove the ball coupling and clean it (Y page 196). If the ball cou-
pling still cannot be locked, remove the ball coupling. It must no
longer be used to tow a trailer, as safe operation is not guaranteed.
X Have the entire trailer tow hitch checked at a qualified specialist
workshop. Parking up the vehicle
Problem Possible cause/consequence Suggested solutions
The vehicle is to be left parked up
for longer than six weeks. Damage resulting from non-use
may occur if the vehicle is parked
up for long periods. X
Visit a qualified specialist workshop and seek advice.
X Disconnect the battery ( Ypage 264). Practical advice
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Flat tyre
258 G
Risk of accident
Do not exceed the maximum speed of
80 km/h.
The "max. 80 km/h" sticker must be affixed
within the driver's field of vision.
The vehicle's handling characteristics may
be affected. H
Environmental note
Have the used TIREFIT kit disposed of pro-
fessionally, e.g. at a Mercedes-Benz
Service Centre.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Changing a wheel/fitting the spare
wheel*
G
Risk of accident
The wheel dimensions and tyre size of the
"Minispare" emergency spare wheel* may
differ from those of the standard wheels.
Your vehicle's handling characteristics will
change when a "Minispare" emergency
spare wheel* is fitted. Adapt your style of
driving accordingly.
The "Minispare" emergency spare wheel*
may only be used for a short time. Do not
exceed the maximum speed of 80 km/h
and do not deactivate ESP ®
.
Never drive the vehicle with more than one
"Minispare" emergency spare wheel* fit-
ted. G
Risk of accident
Have the "Minispare" emergency spare
wheel* or the spare wheel* replaced with
a new wheel as soon as possible at a quali-
fied specialist workshop which has the nec-
essary specialist knowledge and tools to
carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre for this pur- pose. In particular, work relevant to safety
or on safety-related systems must be car-
ried out at a qualified specialist workshop.
Preparing the vehicle X
Prepare the vehicle as described
(Y page 252).
X If a trailer is coupled, uncouple it.
X Place the wheels in the straight-ahead posi-
tion.
X Take the "Minispare" emergency spare
wheel* or the spare wheel* out of the stow-
age well under the luggage compartment
floor.
X Take the following out of the stowage com-
partment behind the rear seat backrest:
R
the vehicle tool kit
R the wheel chock
R the jack
X Secure the vehicle to prevent it from rolling
away.
On level ground: place chocks or similar
items under the front and rear of the wheel
that is diagonally opposite the wheel you
wish to change. Practical advice
* optional
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Towing and tow-starting
268
When towing, observe the legal requirements
in all countries concerned.
! When towing, pull away slowly and with-
out jerking. If the tractive power is too high,
the vehicles could be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
! You may tow the vehicle for a maximum
of 50 km. A towing speed of 50 km/h must
not be exceeded.
For towing distances over 50 km, the entire
vehicle needs to be lifted up and transpor-
ted.
! Only secure the tow cable or towing bar
to the towing eyes. You may otherwise
damage the vehicle.
R Vehicles with AUTOTRONIC* must not be
tow-started.
R If the engine does not start, try jump-start-
ing it (Y page 266).
R If it is not possible to jump-start the vehicle,
have it towed to the nearest qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre. R
The selector lever must be in position N
when towing a vehicle with AUTO-
TRONIC*.
R If you are towing the vehicle over a consid-
erable distance, this must only be done
with the front axle raised.
R The ignition must be switched off if you are
towing the vehicle with the front/rear axle
raised. Intervention by ESP ®
could other-
wise damage the brake system.
R Before towing the vehicle, make sure that
the battery is connected and charged. Oth-
erwise:
-you cannot switch on the ignition
- you cannot move the selector lever
to N(on vehicles with AUTOTRONIC*)
- you have no support when braking
i Switch off the automatic locking feature
before the vehicle is towed (Y page 110).
You could otherwise be locked out when
pushing or towing the vehicle. Fitting the towing eye
Vehicles with a trailer tow hitch: if you
intend to use the vehicle for towing, fit the ball
coupling (Y page 186) and connect the tow-
bar to this.
Opening the front cover The mountings for the removable towing eyes
are in the bumpers. They are located at the
front and rear behind covers on the right-hand
side of the vehicle when viewed in the direc-
tion of travel.
1
Cover
X Press cover 1back in the direction of the
arrow.
X Take cover 1off the opening. Practical advice
* optional
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Fuses
270
X
Tow the vehicle or let it roll.
X Shift to a suitable gear and bring the clutch
pedal up slowly. Do not depress the accel-
erator pedal.
The engine is started. Removing the towing eye
X Take the wheel wrench from the vehicle
tool kit (Y page 200).
X Insert the wheel wrench handle into the
towing eye and turn it anti-clockwise.
X Unscrew the towing eye.
X Replace the cover and press it until it
engages.
X Return the towing eye and the wheel
wrench to the vehicle tool kit. Transporting the vehicle
The towing eyes or trailer coupling* can be
used to pull the vehicle onto a trailer or trans-
porter if you wish to transport it.
! Only secure the vehicle by the wheels or
wheel rims, not by parts of the vehicle such
as axle or steering components. Otherwise,
the vehicle could be damaged.
Vehicles with manual transmission X
Shift to neutral.
Vehicles with AUTOTRONIC* X
Turn the key to position 2(Y page 62) in
the ignition lock.
X Move the selector lever to N. Fuses
Notes on changing fuses
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions will
fail.
Blown fuses must be replaced with fuses of
the same rating, which you can recognise by
the colour and value. The fuse ratings are lis-
ted in the fuse allocation chart. A Mercedes-
Benz Service Centre will be happy to advise
you. G
Risk of fire
Only use fuses that have been approved for
Mercedes-Benz vehicles and which have
the correct fuse rating for the systems con-
cerned. Do not attempt to repair or bridge
faulty fuses. Otherwise, a circuit overload
could cause a fire. Have the cause traced
and rectified at a qualified specialist work-
shop, e.g. a Mercedes-Benz Service Centre.
If the newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which Practical advice
* optional
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273
Introduction to technical data
.........274
Genuine Mercedes-Benz parts .........274
Vehicle electronics ...........................275
Vehicle identification plates ............276
Engine ................................................ 278
Performance ...................................... 280
Tyres and wheels .............................. 282
Vehicle dimensions ..........................286
Vehicle weights ................................. 286
Trailer coupling* ............................... 289
Service products and capacities .....291 Technical data
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