Page 358 of 474

357 Practical hints
What to do if …
Problem
Possible cause/conse-
quence
Suggested solution
56
The front passenger front 
air bag off indicator lamp 
does not illuminate 
and/or does not remain 
illuminated with the 
weight of a typical 
12-month-old child in a 
standard child restraint or 
less on the front passen-
ger seat. 
The system is malfunctioning.
Make sure there is nothing between seat cushion and 
child seat and check installation of the child seat.
Make sure that no objects applying supplemental 
weight onto the seat are present.
If the front passenger front air bag off indicator lamp 
remains out, have the system checked as soon as pos-
sible by an authorized Mercedes-Benz dealer. Do not 
transport a child on the front passenger seat until the 
system has been repaired.
Also note any messages in the multifunction display 
and follow corrective steps (
page 364).
Warning!
G
If the 56indicator lamp does not 
illuminate or remains out with the weight of 
a typical 12-month-old child in a standard 
child restraint or less on the front passenger 
seat, do not transport a child on the front 
passenger seat until the system has been 
repaired. 
     
        
        Page 365 of 474

364 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Front-pass.
airbag 
activated
See Operator’s 
Manual
Front passenger front air bag is 
activated while driving even though 
a child, small individual, or object 
below the system’s weight 
threshold is on the front passenger 
seat, or the front passenger seat is 
empty. Objects on the seat or 
forces acting on the seat may 
make the system sense supple-
mental weight.
Stop the vehicle in a safe location as soon as possible and check the front 
passenger seat for the following:
Switch off the ignition (
page 33).
Remove child and child restraint from front passenger seat and proper-
ly secure the child in rear seat employing the child restraint if neces-
sary.
Make sure that no objects applying supplemental weight onto the seat 
are present. The system may recognize such supplemental weight and 
sense that an occupant on the front passenger seat is of a greater 
weight than actually present.
Keep the seat unoccupied, close the front passenger door and switch 
on the ignition (
page 33).
(Continued on next page) 
     
        
        Page 367 of 474
366 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Front-pass.
airbag 
deactivated
See Operator’s 
Manual
Front passenger front air bag is deac-
tivated while driving even though an 
adult or someone larger than a small 
individual is occupying the front pas-
senger seat. Forces acting on the 
seat may make the system sense a 
decrease in weight.
Stop the vehicle in a safe location as soon as possible and check the 
front passenger seat for the following:
Switch off the ignition (
page 33).
Have the front passenger vacate the seat and exit the vehicle.
Keep the seat unoccupied, close the front passenger door and 
switch on the ignition (
page 33).
(Continued on next page) 
     
        
        Page 411 of 474
410 Practical hintsFlat tire
Unscrew the alignment bolt, install last 
wheel bolt and tighten slightly.Lowering the vehicle
Lower vehicle by turning crank 
counterclockwise until vehicle is 
resting fully on its own weight.
Remove the jack.
1 - 5Wheel bolts
Tighten the five wheel bolts evenly, 
following the diagonal sequence 
illustrated (1to5), until all bolts are 
tight. Observe a tightening torque 
of 80 lb-ft (110 Nm).Before storing the jack, it should be fully 
collapsed, with handle folded in (storage 
position) (
page 385).
Store the jack and the other vehicle 
tools in the trunk.
Warning!
G
Only use genuine equipment 
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.
Warning!
G
Have the tightening torque checked after 
changing a wheel. The wheels could come 
loose if they are not tightened to a torque 
of 80 lb-ft (110 Nm). 
     
        
        Page 426 of 474
425 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and Tires
Electrical system
Main dimensions
Weights
Fuels, coolants, lubricants, etc. 
     
        
        Page 440 of 474
439 Technical data
Weights
Weights
Roof load max.
220 lb (100 kg)
Trunk load max.
220 lb (100 kg) 
     
        
        Page 450 of 474

449 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.
Accessory weight
(
page 331)
Air pressure
(page 331)
Alignment bolt
Metal pin with thread. The centering 
pin is an aid used when changing a tire 
to align the wheel with the wheel hub.
Aspect ratio
(page 331)
Bar
(page 331)
BAS
(Brake A
ssist S
ystem)
System for potentially reducing braking 
distances in emergency braking 
situations. The system is activated 
when it senses an emergency based on 
how fast the brake is applied.Bead
(
page 331)
Bi-Xenon headlamps*
Headlamps which use an electric arc as 
the light source and produce a more 
intense light than filament headlamps. 
Bi-Xenon headlamps produce low 
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service 
center, which can help you with any 
questions about your vehicle and 
provide assistance in the event of a 
breakdown.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control 
vehicle functions such as door locking 
or windshield wiping depending on 
vehicle settings and/or ambient 
conditions.Cockpit
All instruments, switches, buttons and 
indicator/warning lamps in the 
passenger compartment needed for 
vehicle operation and monitoring.
Cold tire inflation pressure
(
page 331)
COMAND*
(Cockpit M
anagement and D
ata 
System)
Information and operating center for 
vehicle sound and communications 
systems, including the radio and the 
navigation system, as well as other 
optional equipment (CD changer*, 
telephone*, etc.). 
     
        
        Page 451 of 474

450 Technical termsControl system
The control system is used to call up 
vehicle information and to change 
component settings. Information and 
messages appear in the multifunction 
display. The driver uses the buttons on 
the multifunction steering wheel to 
navigate through the system and to 
adjust settings.
Cruise control
Driving convenience system that 
automatically maintains the vehicle 
speed set by the driver.
Curb weight
(
page 331)
DOT
(Department o
f Transportation) 
(
page 331)Engine number
The number set by the manufacturer 
and placed on the cylinder block to 
uniquely identify each engine 
produced.
Engine oil viscosity
Measurement for the inner friction 
(viscosity) of the oil at different temper-
atures. The higher the temperature an 
oil can tolerate without becoming thin, 
or the lower the temperature it can 
tolerate without becoming viscous, the 
better the viscosity.
ESP
®(Electronic S
tability P
rogram)
Improves vehicle handling and 
directional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal 
and rear collisions exceeding the 
system’s threshold to tighten the 
seat belts.
->SRSFSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the 
multifunction display that informs the 
driver when the next vehicle mainte-
nance service is due. FSS evaluates 
engine temperature, oil level, vehicle 
speed, engine speed, distance driven 
and the time elapsed since your last 
maintenance service, and calls for the 
next maintenance service accordingly. 
GAWR
(G
ross A
xle W
eight R
ating) 
(
page 331)
Gear range
Number of gears which are available to 
the automatic transmission for shifting. 
The automatic gear shifting process 
can be adapted to specific operating 
conditions using the gear selector 
lever.