2008 MERCEDES-BENZ R-CLASS MPV engine

Battery
324 Battery acid is caustic.
Avoid contact with the
skin, eyes or clothing.
Wear suitable protective
clothing, in particular
gloves, an apron and a
face mask.
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.
Wear eye protection.
Keep children away.
Observe this Owner's
Manual.
H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. Dispose of defective batteries
in an environmentally responsible manner.
Take them to a Mercedes-Benz Service Centre or to a special collection point for
old batteries.
G
Risk of injury
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which
have been tested and approved for your
vehicle by Mercedes-Benz. These batteries
provide increased impact protection to pre-
vent vehicle occupants from suffering acid
burns should the battery be damaged in the
event of an accident.
To prevent acid burns, observe the follow-
ing safety notes when handling batteries:
R Do not lean over batteries.
R Do not place any metal objects on a bat-
tery. You could otherwise cause a short
circuit and the battery's highly flammable
gas mixture could ignite.
R Make sure that you do not create an elec-
trostatic charge, e.g. by wearing syn-
thetic clothing or as a result of friction on
fabrics. Therefore, you should not pull or
slide the battery over carpets or other
synthetic materials.
R Never touch the battery first. To dis-
charge a possible electrostatic charge, step out of the vehicle first and touch the
bodywork.
R Do not wipe the battery using a cloth. The
battery may explode as a result of elec-
trostatic charge or due to flying sparks.
! Switch off the engine and remove the
key/KEYLESS GO * button before loosen-
ing or removing the battery terminal
clamps. You may otherwise destroy elec-
tronic components such as the alternator.
i Mercedes-Benz recommends that you
have all work involving the battery, e.g.
removing, charging and replacing, carried
out at a qualified specialist workshop, e.g.
a Mercedes-Benz Service Centre.
The battery is located under the front seat on
the right-hand side when viewed in the direc-
tion of travel. Practical advice
* optional
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Battery
325Disconnecting the battery
G
Risk of accident
If the battery is disconnected:
R the brake boosting effect will not be avail-
able. Greater braking force will then be
required and the brake pedal travel will
be longer. If necessary, depress the
brake pedal with maximum force.
R you can no longer turn the key in the igni-
tion and, on vehicles with KEYLESS
GO*, pressing the KEYLESS GO button*
will have no effect
R the selector lever is locked in position P
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Firmly depress the parking brake and shift
the DIRECT SELECT lever to position P.
X Switch off the engine.
X Turn the key to position 2(Y page 76)in the
ignition lock.
X Switch off all electrical consumers. X
Open the front right-hand door.
X Position the right-hand front seat at its rear-
most position:
R
partially electric seat adjustment
(Y page 78)
R fully electric seat adjustment
(Y page 79) 1
Front right seat rail cover
2 Front left seat rail cover
X Pull right-hand cover 1forwards in the
direction of the arrow and pull it off the seat
rail.
X Pull left-hand cover 2as far forwards as
possible in the direction of the arrow.
i Left-hand cover 2cannot be completely
pulled off the seat rail. 3
Battery cover fastening nuts
X Loosen and remove fastening nuts 3
along the edge of the carpet.
i To do this, you need a 6 mm Allen key with
a shaft at least 30 cm long (not included in
the vehicle tool kit).
X Position the right-hand front seat as far
forward as possible:
R partially electric seat adjustment
(Y page 78)
R fully electric seat adjustment (Y page 79)
X Turn the key to position 0(Y page 76) in
the ignition lock. Practical advice
* optional
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Jump-starting
329Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads.
Observe the following points:
R Jump-starting may only be performed when
the engine and catalytic converter are cold.
R Do not start the engine if the battery is fro-
zen. Let the battery thaw first.
R Jump-starting may only be performed from
batteries with a nominal voltage of 12 V.
R Only use jump leads which are protected
against polarity reversal and which have a
sufficient cross-section and insulated ter-
minal clamps.
i Jump leads which are protected against
polarity reversal and further information
about jump-starting can be obtained from
any Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Never start the vehicle using a rapid battery
charger. G
Risk of injury
There is a risk of acid burns when jump-
starting a vehicle due to the gases which
escape from the battery. Do not lean over
the battery while the engine is being jump-
started. G
Risk of explosion
Gases escaping from the battery during
jump-starting may cause minor explosions.
Avoid creating sparks. Keep naked flames
away from the battery, and do not smoke.
Comply with safety precautions and take
protective measures when handling batter-
ies. You will find these under "Battery" in
the index.
X Make sure that the two vehicles do not
touch.
X Depress the parking brake firmly.
X Move the selector lever to P.
X Switch off all electrical consumers. 1
Earth point on your vehicle
2 Positive terminal on your vehicle
3 Negative terminal of donor battery
4 Positive terminal of donor battery
X Connect positive terminal 2on your vehi-
cle to positive terminal 4of the donor
battery using the jump lead, beginning with
your own battery.
X Start the engine of the donor vehicle and
run it at idling speed.
X Connect negative terminal 3of the donor
battery to the earth point 1of your vehicle
using the jump lead, connecting the jump
lead to the donor battery first.
X Start the engine. Practical advice
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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
333
In the event of damage to the front axle Have the propeller shaft between the rear
axle and the transfer case removed.
Have the vehicle towed with the front axle
raised.
In the event of rear axle damage (Vehi-
cles with 4MATIC)
If the vehicle has transmission damage or
damage to the front or rear axle, have it trans-
ported on a transporter or trailer.
! New bolts must always be used when the
propeller shafts are refitted. The specified
tightening torques must be observed.
i Consult a Mercedes-Benz Service Centre.
In the event of damage to the electrical
system If the battery is defective, the automatic
transmission will be locked in position
P. To
shift the automatic transmission to neutral,
you must supply power to the vehicle's elec-
trical system in the same way as jump-start-
ing (Y page 329).
Have the vehicle transported on a transporter
or trailer. 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 have the correct fuse rating for the system
concerned. Otherwise, components or sys-
tems could be damaged.
The fuses are located in various fuse boxes:
R Dashboard fuse box on the front-passenger
side
R Fuse box in the engine compartment on the
right-hand side of the vehicle
R Fuse box in the stowage well under the lug-
gage compartment floor
Fuse allocation chart The fuse allocation chart is located with the
vehicle tool kit (Y
page 252) in the stowage
compartment under the luggage compart-
ment floor. Practical advice
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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
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337
Notes on the technical data
.............338
Genuine Mercedes-Benz parts .........338
Vehicle electronics ...........................339
Vehicle identification plates ............340
Engine ................................................ 342
Performance ...................................... 344
Tyres and wheels .............................. 345
Vehicle dimensions ..........................350
Vehicle weights ................................. 351
Trailer coupling* ............................... 354
Service products and capacities .....355
Frequencies for garage door open-
ers* .................................................... 363 Technical data
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