Page 324 of 434

323 Practical hints
Where will I find ...?
Where will I find ...?
First aid kit
The first aid kit is located in storage com-
partment under the passenger seat.
1Handle
2Lid
Pull handle 1 up.
Fold lid 2 down.
You can now remove the first-aid kit.
Vehicle tool kit, jack, and spare wheel
The vehicle tool kit, jack, and spare wheel 
are stored in the space underneath the 
trunk floor.
Lift up the trunk floor cover.
You can now remove the tools and ac-
cessories.
The vehicle tool kit includes
One pair of universal pliers
Two open-end wrenches
One hex-socket wrench
One interchangeable slot/Phillips 
screwdriver
One towing eye bolt 
One alignment bolt
One fuse extractor
One fuse chart for the main fuse 
box
Spare fuses
The jack is exclusively designed for lifting 
the vehicle during a wheel change. Always 
lower the vehicle on sufficient capacity 
jack stands before working under the vehi-
cle.
iCheck expiration dates and contents 
for completeness at least once a year 
and replace missing/expired items. 
     
        
        Page 354 of 434

353 Practical hints
Flat tire
Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and re-
move.
Replace this wheel bolt with alignment 
bolt1 supplied in the tool kit.
Remove the remaining bolts.
Remove the wheel.Mounting the new wheel
Clean contact surfaces of wheel and 
wheel hub.
Guide the spare wheel onto the align-
ment bolt and push it on.
Insert wheel bolts and tighten them 
slightly.
!Do not place wheel bolts in sand or dirt. 
This could result in damage to the bolt 
and wheel hub threads.
Warning!
G
Inflate spare wheel tire only after the wheel 
is properly mounted.
Inflate the spare wheel tire using the electric 
pump (
page 354) 
before
 lowering the ve-
hicle.
Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive 
under these circumstances! Contact an au-
thorized Mercedes-Benz 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. Be 
sure to use the correct wheel bolts. 
     
        
        Page 355 of 434
354 Practical hintsFlat tire
Unscrew the alignment bolt, install last 
wheel bolt and tighten slightly.Inflating the spare tire
Take the electric air pump out of the 
trunk (
page 323).
1Flap
2Air hose with pressure gauge and vent 
screw
3Union nut
4Electrical plug
Open flap 1 on air pump.
Pull out electrical plug 4 and air hose 
with the pressure gauge 2.
Remove the valve cap from the tire 
valve.
Screw air hose 2 onto the tire valve.
Insert electrical plug 4 into vehicle ci-
gar lighter socket.
Warning!
G
Only use genuine equipment 
Mercedes-Benz wheel bolts. They are identi-
fied by the Mercedes star. Other wheel bolts 
may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could 
tip over.
!Do not lower the vehicle before inflat-
ing the spare wheel tire. Otherwise the 
rim may be damaged.Warning!
G
Observe instructions on air pump label. 
     
        
        Page 398 of 434

397 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up 
during braking so that the vehicle can 
continue to be steered.
ABC
(A
ctive B
ody C
ontrol)
Active, computer-controlled system 
that hydraulically adjusts the suspen-
sion at all four wheels in response to 
various driving situations.
Alignment bolt
Metal pin with thread. The alignment 
bolt, or centering bolt, is an aid used 
when changing a tire to align the wheel 
with the wheel hub.BabySmart
TM1
 airbag deactivation 
system
This system detects if a special system 
compatible child restraint seat is in-
stalled on the front passenger seat. The 
system will automatically deactivate 
the passenger front airbag when such a 
seat is properly installed (indicator 
lamp 7 on the glove box comes on). 
See your authorized Mercedes-Benz 
Center for availability.
BabySmart
TM compatible child seats
Special restraint system for children. 
The sensor system for the passenger 
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM 
compatible child seat is installed.BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking 
distances in emergency braking situa-
tions. The system is activated when it 
senses an emergency based on how 
fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as 
the light source and produce a more in-
tense light than filament headlamps. 
Bi-Xenon headlamps produce low 
beam and high beam.
CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide 
assistance in the event of a break-
down.
1BabySmart
TM 
 is a trademark of Siemens
Automotive Corp.