ECU MERCEDES-BENZ M-CLASS 2007 Manual PDF

472 Practical hintsWhere will I find ...?Operational position
Turn crank handle clockwise.
Before storing the vehicle jack in its stor-
age compartment:


The vehicle jack should be fully col-
lapsed.


The handle must be folded in (storage
position).Setting up the collapsible wheel chock
The collapsible wheel chock serves to ad-
ditionally secure the vehicle, e.g. while
changing the wheel.
1Tilt the plate upward
2Fold the lower plate outward
3Insert the plate

Tilt both plates upward1.

Fold the lower plate outward2.

Guide the tabs of the lower plate all the
way into the openings of base plate3.
For information on where to place wheel
chocks when changing a wheel, see “Lift-
ing the vehicle” (
page 498).

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495 Practical hints
Replacing wiper blades
Installing
1Installing
2Tab
3Attachment
4Guide tab
5Cover
Slide the wiper blade into
attachment3 in direction of
arrow1.

Make sure guide tab4 will be placed
under cover5 when fully inserting the
wiper blade into attachment.

Let tab2 latch into both recesses of
attachment3.

Check if the wiper blade is securely
fastened.

Fold the wiper arm backward to rest on
the windshield.
Make sure you hold on to the wiper arm
when folding it back.
Rear wiper bladeWarning!
G
For safety reasons, switch off wipers and
remove SmartKey from starter switch
(vehicles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status
0) before replacing a wiper blade.
Otherwise the motor could suddenly turn on
and cause injury.
!
Hold on to the wiper when folding the wiper
arm back. If released, the force of the impact
from the tensioning spring could crack the rear
window.
Do not allow the wiper arm to contact the rear
window glass without a wiper blade inserted.
Make sure the wiper blade is properly installed.
Improperly installed wiper blades may cause
rear window damage.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Light Truck Center.
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496 Practical hintsReplacing wiper bladesRemoving
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle’s on-board
electronics have status0
(page 42).

Fold wiper arm1 away from the rear
window until it engages.
1Wiper arm
2Wiper blade

Turn wiper blade2 to form a right
angle with wiper arm1 as shown.

Hold wiper arm1 and disengage wip-
er blade2 by carefully sliding it in
direction of arrow.

Remove wiper blade2.
Installing
1Wiper arm
2Wiper blade

Insert wiper blade2 into wiper
arm1.

Hold wiper arm1 and engage wiper
blade2 by pushing it in direction of
arrow until it locks into place.

Check whether the wiper blade is
securely fastened.

Fold the wiper arm to rest on the rear
window.
Make sure to hold on to the wiper when
folding the wiper arm back.
!
Do not pull on the wiper blade insert. It
could tear.
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508 Practical hintsBattery!
The battery is a valve-regulated lead acid
(VRLA) battery, also referred to as “fleece” bat-
tery. Such batteries do not require topping-up of
the electrolyte level. VRLA batteries therefore do
not have cell caps and the battery cover is
non-removable. Do not attempt to open the bat-
tery as otherwise the battery will be damaged.
Even though VRLA batteries do not require top-
ping-up of the electrolyte level and cannot be
opened to check the electrolyte level, the bat-
tery condition must be checked periodically by
performing a battery conductance test. Refer to
Maintenance Booklet for battery condition test-
ing intervals.
As with any other battery, the battery may dis-
charge if the vehicle is not operated for an ex-
tended period of time. You can connect a battery
maintenance charge unit tested and approved
for use on your vehicle model or disconnect the
battery to prevent battery discharge. Contact an
authorized Mercedes-Benz Light Truck Center
for more information.
!
The factory-equipped VRLA battery is
leak-proofed. Only use a battery as replacement
that has the same security features and is of
identical size, voltage, and capacity as the
factory-equipped battery.
The battery, the battery ventilation hose
(
page 513) and the lateral plug (
page 513)
must always be securely installed when the
vehicle is in operation.
Warning!
G
Jump starting must only be done using the
jump-start contacts located in the engine
compartment (
page 515).
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 507).
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
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513 Practical hints
Battery
Step 8 (Removing)
cBattery
Tilt the batteryc with the negative
terminal side upwards.

Take out the battery maintaining its
tilted position in the direction of the
arrow.Step 9 (Reinstalling)

Carry out step 8 in reverse order
(page 513).
Battery, shown removed for illustration9Battery ventilation hose
dVent plug

Carry out step 10 to reconnect the
battery (
page 513).

Follow steps 5 to 1 in reverse order to
completely reinstall the battery
(page 512) to (
page 509).
Step 10 (Reconnecting)

If the battery has been removed, first
carry out step 8 in reverse order
(page 513).

Open the driver’s door.

Make sure all electrical consumers are
turned off.

Make sure the SmartKey is removed
from the starter switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle’s on-board
electronics have status0 (Open the
driver’s door. With the driver’s door
open, the vehicle’s on-board elec-
tronics have status0, same as with
the SmartKey removed from the
starter switch (
page 39)).
!
The battery, the battery ventilation hose9
and the lateral plugd (
page 513) must
always be securely installed when the vehicle is
in operation.

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520 Practical hintsTowing the vehicleInstalling towing eye bolt
Depending on whether you are towing a
vehicle or you are being towed, the towing
eye bolt can be screwed into threaded
holes which are located behind covers on
the right-hand side of each bumper.
1Cover1Cover
Vehicles with Sport Package*1CoverRemoving cover

Press mark on cover1 as indicated by
the arrow.
Vehicles with Sport Package*:
Pry cover1 with a screwdriver or
similar tool at point indicated by the
arrow.

Lift off cover1 to reveal the threaded
hole for towing eye bolt.Warning!
G
In order to avoid possible serious burns or
injury, use extreme caution when removing
the rear cover, because the rear exhaust
pipe is extremely hot.i
The cover1 is secured to the bumper by a
plastic cord.
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522 Practical hintsFusesThe electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and sys-
tems secured by that fuse will stop operat-
ing.If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Light Truck
Center.
The following aids are available to help you
replace fuses. They are included with the
vehicle tool kit (
page 469):


Fuse chart
The fuse chart explains the fuse alloca-
tion and fuse amperages.


Spare fuses


Fuse extractor
The electrical fuses are located in different
fuse boxes:


Fuse box in engine compartment
(page 523)


Fuse box in cargo compartment
(page 523)


Fuse box in passenger compartment
(page 524)Before replacing fuses:

Apply parking brake (
page 65).

Make sure the automatic transmission
is set toP (
page 187).
The gear position indicator in the multi-
function display should be on
P.

Turn off all electrical consumers.

Turn off the engine (
page 40).

Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Open the driver’s door (this puts
the starter switch in position0,
same as with the SmartKey re-
moved from the starter switch). The
driver’s door then can be closed
again.
Warning!
G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than ap-
proved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied by an au-
thorized Mercedes-Benz Light Truck Center.i
A blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart. Any
Mercedes-Light Truck Center will be glad to
advise you on this subject.
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566 IndexMON 353, 548
Multicontour seat* 130
Multifunction display 147
Changing settings see Control
system menus and Control system
submenus
Selecting display 168
Selecting language 167
Multifunction display messages 428
ABS 430
Air suspension package* 467
Brake fluid 449
Brake lamps 458
Brake pads 447
Check engine 449
Coolant 452
Cruise control 431
Distronic* 432
Doors 455
Downhill Speed Regulation 447
EBP 448
Engine coolant 450, 452
Engine oil 453
ESP
®
419Fog lamps, Front 458
Fog lamps, Rear 461
Front passenger front air bag 440,
441, 442, 443
Fuel cap 455
Gear selector lever 438
Headlamps 458, 460, 461, 463
Hood 455
Key, SmartKey 457
Key, SmartKey with
KEYLESS-GO* 456, 457
Lamps 458, 460, 461, 463
Low tire pressure 444, 465, 466
Parking brake 438, 448
Parking lamps 459
Tele Aid* 464
Telephone* 464
Turn signals 463
Vehicle battery 446
Windshield washer fluid 464
Multifunction steering wheel 30, 148
Button operation 148N
Navigation system* 161
See separate COMAND system
operating instructions
Net, Parcel 297
Net, Partition* 287
Neutral gear position, Automatic
transmission 185, 189
New vehicle, Break-in period 324
Night security illumination 139, 172
Normal occupant weight 396
Number, Vehicle Identification (VIN) 530
O
Occupant distribution 396
Occupant safety 70
Active head restraint 80
Air bags 71
Children and air bags 73, 82, 84
Children in the vehicle 82
Fastening the seat belt 51
Front passenger front air bag off
indicator lamp 86, 89, 90
Infant and child restraint systems 82
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570 IndexSeat belts 77
Children in the vehicle 82
Cleaning 412
Fastening 51
Height adjustment 53
Messages in the
multifunction display 421, 422
Proper use of 53, 78
Safety guidelines 73
Telltale 29, 77, 421
Warning lamp 422
Seat cushion depth see Seats
Seat heating* see Seats
Seat ventilation* see Seats
Seating capacity 370
Seats 43, 128
Adjusting 43
Cushion depth, Multicontour
seat* 130
Folding the backrest forward 284
Heating* 131
Lumbar support 130
Memory function* 134
Multicontour seat* 130
Returning seat backrest to original
position 286Ventilation* 132
Securing cargo 283
Cargo tie-down rings 283
Hooks 284
Selector lever see Gear selector lever
Self-test
Lamps in the instrument cluster 414
OCS 90
Tele Aid* 309
Vehicle battery 507
Service and warranty information 10
Service intervals see Maintenance, Service
indicator
Service life
Tires 366
Service see Maintenance
Service system see FSS PLUS
(Canada vehicles) or
Maintenance System (US vehicles)
Service, Parts 528Settings
Adaptive Damping System
(ADS)* 269
Air suspension* 269
Clock 169
Comfort functions* 177
Control system menus 150, 152
Control system submenus 151, 153,
166
Date 153, 166, 169
Daytime running lamp mode 171
Factory, SmartKey 109
Factory, SmartKey with
KEYLESS-GO* 115
Individual, Vehicle 164
Instrument cluster 167
Language, multifunction display 167,
168
Lighting 171
Memory function* 135
Resetting all, Control system 165
Selective, SmartKey 110
Selective, SmartKey with
KEYLESS-GO* 115
Time 169
Vehicle configuration 178
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