wheel alignment MERCEDES-BENZ R350 2008 W251 Owner's Manual

467 Practical hints
Where will I find ...?
Where will I find ...?
First aid kit
The first aid kit is stored under the cargo
compartment floor, see “Vehicle tool kit”
(
page 467).
Vehicle tool kit
The vehicle tool kit is stored under the
cargo compartment floor.
The vehicle tool kit includes:

Towing eye bolt

Wheel wrench

Alignment bolt

Vehicle jack

Fuse chart

Collapsible wheel chock

Wheel bolts for spare wheel
(if applicable, see “Mounting the spare
wheel” (
page 498))1Cargo compartment floor, lowered
2Handle cover
Open the tailgate (page 119).
Push in handle cover2 as indicated
by arrow and pull handle.
Lift cargo compartment floor 1.
iCheck expiration dates and contents for
completeness at least once a year and replace
missing / expired items.


469 Practical hints
Where will I find ...?
Vehicle tool kit storage well casing
Example illustration1
(vehicles with scissors-type jack)
1Wheel wrench
2Electric air pump
3Mounting direction indicator
4Fuse chart
5Hook and loop fastener
6Alignment bolt
7Collapsible wheel chock
8Towing eye bolt
9Spare wheel (collapsible tire)
aSpare wheel bolts
bVehicle tool kit storage well casing
cReversible ratchet
(comes with scissors-type jack only)
dJack
To remove jackd, loosen hook and
loop fastener 5.
To remove the vehicle tool kit storage
well casing, proceed as described
on (
page 472).Vehicle jack
The vehicle jack is located underneath the
storage compartment floor.Remove vehicle jack from its storage
compartment (
page 467).
1Appearance and alignment of the items may vary.
Warning!G
Only use the jack supplied with your vehicle
to lift the vehicle briefly for wheel changes.
If you use the jack for any other purpose,
you or others could be inju re d, as the j ac k is
designed only for the purpose of changing a
wheel.
When using the jack, observe the safety
notes in the “Mounting the spare wheel”
section (
page 493) and the notes on the
jack.

497 Practical hints
Flat tire
Screw-type jack (example illustration)
Scissors-type jack (example illustration)
Vehicles with screw-type jack: Turn
crank4 clockwise until jack 3 is fully
seated in take-up bracket2 and the
jack base evenly meets the ground.
Vehicles with scissors-type jack:
Turn ratchet 4 up and down until
jack3 is fully seated in take-up
bracket2 and the jack base evenly
meets the ground.
Continue to turn crank/ratchet 4
until the wheel is a maximum of
1.2 in (3 cm) from the ground.Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and
remove.
Replace this wheel bolt with alignment
bolt1 supplied in the vehicle tool kit
(
page 467).
Remove the remaining wheel bolts.
Remove the wheel.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolts and wheel
hub threads.

498 Practical hints
Flat tire
Mounting the spare wheel
1Wheel bolt for 18", 19", and 20" light al-
loy wheels
2Wheel bolt for spare wheel (located in
cargo compartment with spare wheel)
Clean contact surfaces of wheel and
wheel hub.
Guide spare wheel onto the alignment
bolt and push it on.
Insert wheel bolts and tighten them
slightly.
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
!Wheel bolts2 must be used when mount-
ing the spare wheel with collapsible tire.
The use of any wheel bolts other than wheel
bolts2 for the spare wheel with collapsible tire
will physically damage the vehicle’s brakes.
!To avoid paint damage, place wheel flat
against hub and hold it there while installing first
wheel bolt.
Warning!G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Light Truck
Center or call Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.
Warning!G
Only use genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.

517 Practical hints
Towing the vehicle
Stranded vehicle
Freeing a stranded vehicle, on which the
wheels are dug into sand or mud, should
be done with the greatest of care, espe-
cially if the vehicle is heavily loaded.
Avoid pulling the vehicle abruptly or diago-
nally, since it could result in damage to the
chassis alignment.
Never try to free a vehicle that is still cou-
pled to a trailer.
If possible, a vehicle equipped with trailer
hitch receiver should be pulled backward
in its own previously made tracks.

545 Index
A
ABS 99
Indicator lamp 414, 415
Messages in the multifunction
display 429
Accelerator position, automatic
transmission 197
Accessory weight 393
Accident 63
Active head restraint 86, 133, 477
Air bags 72
Children 73, 89
Front, Driver 75
Front, Passenger 75
Messages in the multifunction
display 438–441
Occupant Classification System
(OCS) 77
Safety guidelines 74
Side impact 76
Window curtain 76
Air conditioning, Cooling 219, 233
Air conditioning refrigerant 538Air conditioning system see
Climate control or Automatic climate
control (3-zone)*
Air distribution 213, 228
Air pressure see Tire inflation pressure
Air pressure, Tires 393
Air pump, Electric 499
Air recirculation mode 216, 231
Air vents, Front 208, 214, 222, 228
Air vents, Rear 220, 236, 239, 240
Air volume 214, 229
AIRMATIC* 276
Messages in the multifunction
display 464, 465
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 467, 497
All-wheel drive see Permanent four-wheel
drive 281
Anticorrosion/antifreeze 541, 544
Antiglare, Interior rear view mirror 203
Antiglare, Auto-dimming rear view
mirrors* 203Anti-theft systems 106
Anti-theft alarm system 106
Immobilizer 106
Aquaplaning see Hydroplaning
Arm rests, Second-row 137
Armrest storage compartments
Front 306
Rear* 306
Telephone* tray 306
Ashtrays 311
Aspect ratio 393
ATF 360
AUDIO menu 165
CD operation 167
Radio operation 166
Satellite radio* operation 166
Audio search function 182
Auto-dimming*, Rear view mirrors 203
Automatic antiglare for rear view
mirrors* 203
Automatic central locking, Control
system 183