2008 MERCEDES-BENZ R-CLASS MPV ECU

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2541
Guides
2 Emergency spare wheel*
X Lay emergency spare wheel* 2in the
emergency spare wheel well.
i Make sure that emergency spare wheel*
2 is positioned on guides 1precisely.
X Lay the emergency spare wheel in the
emergency spare wheel well (Y page 250).
X Lay the tool holder in emergency spare
wheel* 2so that the electric air pump is
pointing towards the tailgate
(Y page 252). X
Turn the tool holder approximately 180°,
so that the electrical air pump points for-
wards.
The tool holder should now be positioned
in accordance with the instructions on the
installation position.
X Turn the tool holder screw clockwise into
the tool holder as far as it will go.
Setting up the foldable wheel chock The folding wheel chock serves as an addi-
tional measure for securing the vehicle
against rolling away, e.g. when a wheel is
being changed.
1
To fold the plates upwards
2 To fold out the lower plate
3 To insert the plate X
Fold both plates 1upwards.
X Fold out lower plate 2.
X Guide the lugs on the lower plate fully into
the openings in base plate 3.Practical advice
* optional
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Flat tyre
317Changing a wheel/fitting the emer-
gency spare wheel*
G
Risk of accident
The wheel dimensions and tyre size of the
emergency spare wheel* may differ from
those of the standard wheels.
The handling characteristics of your vehicle
will change if you fit an emergency spare
wheel*. Adapt your style of driving accord-
ingly.
You may only use the emergency spare
wheel* for a short while. Do not exceed the
maximum speed of 80 km/h and do not
deactivate ESP ®
.
Never drive the vehicle with more than one
emergency spare wheel* fitted. G
Risk of accident
Have the emergency spare wheel*
replaced as soon as possible at a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety- related systems must be carried out at a
qualified specialist workshop.
Preparing the vehicle X
Prepare the vehicle as described
(Y page 313).
X If a trailer is coupled, uncouple it.
X Position the wheels in the straight-ahead
position.
X Take the following from the stowage well
beneath the luggage compartment floor:
R
the emergency spare wheel
R the electric air pump
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. Securing a vehicle on level ground (example illus-
tration)
X
On downhill gradients: place chocks or
similar items under both wheels of the
other axle. Securing a vehicle on slight downhill slopes (exam-
ple illustration) Practical advice
* optional
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Flat tyre
322The air pump can be operated again once
it has cooled down.
If the tyre pressure is higher than 3.0 bar:
X Version 1: open pressure release
screw 4on the pressure gauge until the
tyre pressure is correct.
X Version 2: press pressure release button
6 until the tyre pressure is correct.
X Switch off the electric air pump with on/off
switch 2, remove from the tyre valve and
stow it away.
Lowering the vehicle X
Place the ratchet ring spanner onto the
hexagon nut of the jack so that the lettering
AB is visible.
X Lower the vehicle by turning the ratchet
ring spanner until the vehicle is once again
standing firmly on the ground.
X Place the jack to one side. 1
–5 Wheel bolts
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted (1 to5). The tightening torque is
150 Nm . G
Risk of accident
Have the tightening torque checked imme-
diately after a wheel is changed. The wheels
could work loose if they are not tightened
to a torque of 150 Nm.
X Turn the jack back to its initial position and
stow it and the rest of the vehicle tool kit in
the luggage compartment. X
Transport the faulty wheel in the boot.
or
X Depending on the size of the wheel, you
may also be able to secure the faulty wheel
in the emergency spare wheel well. In this
case, you will have to remove the stowage
tray from the emergency spare wheel well
and stow it securely in the luggage com-
partment.
i Do not activate the tyre pressure moni-
tor* until the deflated tyre has been
removed from the vehicle. MOExtended run-flat system*
The MOExtended run-flat system must only
be used in conjunction with the tyre pressure
loss warning system*.
! The maximum permissible distance which
can be driven in run-flat mode depends on
the load in the vehicle. It is 50 km if the
vehicle is partially laden and 30 km if fully
laden.
The maximum range that can be driven in
emergency operation is measured from the
point at which the pressure loss warning
message appears in the multi-function dis-
play. Practical advice
* optional
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Battery
328
!
Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while it is still installed. Otherwise, the vehi-
cle's electronic system may be damaged.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
X Charge the battery. Observe the notes in
the operating instructions for your battery
charger.
X Refit the charged battery.
To do this, follow the steps described in
"Removing the battery" (Y page 327) in
reverse order.
i You can charge the battery using the
jump-start terminals. These are located on
the right when viewed in the direction of
travel.
X Open the bonnet (Y page 220). Jump-start terminals
1
Body earth point (negative terminal)
2 Positive terminal (under cover)
3 Cover Reconnecting the battery
! Always reconnect the battery in the
sequence described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers.
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose. Make sure that
a cell cap is fitted is fitted on the side. i
If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R Set the time (Y page 132).
On vehicles with COMAND and a naviga-
tion system*, the clock is set automati-
cally
R Reset the sliding/tilting sun-
roof* (Y page 180).
R Reset the panorama sliding/tilting sun-
roof (Y page 183).
R Reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once ( Ypage 91).
R Reset the side windows (Y page 107)Practical advice
* optional
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Towing and tow-starting
330
X
Electrical consumers can be switched on
again. Do not switch the lights on, however,
as this will overload the battery.
X Remove the jump lead from earth
point 1and negative terminal 3first,
then from positive terminal 2and positive
terminal 4, each time disconnecting from
the battery on your own vehicle first.
i The message Battery protection:
some convenience functions cur-
rently not available may appear in the
multi-function display. It disappears as
soon as the battery is sufficiently charged.
X Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Towing and tow-starting
Points to remember
G
Risk of accident
If you tow the vehicle, you must use a rigid
towing bar if:
R the engine is not running
R there is a brake system malfunction
R the voltage supply or the vehicle's elec-
trical system is damaged
The electric power steering and the brake
force booster do not work when the engine
is not running. Greater braking force will
then be required and the brake pedal travel
will be longer. If necessary, depress the
brake pedal with maximum force.
Do not tow the vehicle if the key cannot be
turned in the ignition lock. If this is the case,
the steering is locked and the vehicle can-
not be steered.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
It is better to have the vehicle transported
than to have it towed. 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 will 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.
With towing distances over 50 km, the
entire vehicle needs to be lifted up and
transported.
! On vehicles with KEYLESS GO*: use the
key instead of the KEYLESS GO * button.
Turn the key to position 2in the ignition
lock and set the automatic transmission to
N. Then turn the key back to 0and leave it
in the ignition lock.
! Only secure the tow cable or towing bar
to the towing eyes. You may otherwise
damage the vehicle. Practical advice
* optional
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Towing and tow-starting
331
R
Tow-starting the vehicle is not permitted.
R Vehicles with 4MATIC *must not be towed
with the front or rear axle raised.
R If the engine does not start, try jump-start-
ing it (Y page 329).
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 If the vehicle has suffered transmission
damage, have it carried away on a trans-
porter or trailer.
R If you are towing the vehicle, move the
automatic transmission selector lever to
N and turn the key to position 2
(Y page 76) in the ignition lock.
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
- you have no support when braking
i Before towing the vehicle, deactivate tow-
away protection* (Y page 64)and the auto-
matic door locking feature (Y page 134).You could otherwise be locked out when
pushing or towing the vehicle. Fitting the towing eye
Opening the front cover The mountings for the removable towing eyes
are located in the bumpers. They are located
at the front and rear under the covers on the
right-hand side of the vehicle when viewed in
the direction of travel. 1
Cover
X Press cover 1back in the direction of the
arrow.
X Take cover 1off the opening. Opening the rear cover
1
Cover
X Press cover 1back in the direction of the
arrow.
X Take cover 1off the opening.
Securing the towing eye X
Take the towing eye and the wheel wrench
from the vehicle tool kit ( Ypage 252).
X Screw in the towing eye clockwise to the
stop.
X Insert the wheel wrench handle into the
towing eye and tighten it. Practical advice
* optional
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Fuses
334 Before changing a fuse
X Park the vehicle.
X Switch off all electrical consumers.
X Remove the key from the ignition lock. Dashboard fuse boxes
1
Cover
! Do not use a pointed object such as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover.
X To open: open the front-passenger door.
X Pull cover 1upwards in the direction of
the arrow and remove it. X
To close: clip in cover 1at the top.
X Fold cover 1inwards until it engages.
X Close the front-passenger door. Fuse box in the engine compartment
1
Retaining clamp
2 Cover
X To open: open the bonnet (Y page 220).
X Remove moisture from the fuse box using
a dry cloth.
X Open retaining clamp 1.
X Fold cover 2upwards.
X To close: replace cover 2. !
The cover must be fitted properly, other-
wise moisture or dirt could affect the oper-
ation of the fuses.
X Close retaining clamp 1.
X Close the bonnet (Y page 221). Fuse box in the luggage compartment
Example: vehicle with an emergency spare
wheel*
1
Cover
X To open: open the tailgate.
X Open the luggage compartment floor and
secure it (Y page 250).
X Fold cover 1to the left in the direction of
the arrow. Practical advice
* optional
251_AKB; 5; 7, en-GB
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