Page 240 of 442

240 Controls in detailLoadingLoading instructions
The total load weight including vehicle oc-
cupants and luggage / cargo should not ex-
ceed the vehicle capacity weight indicated 
on the certification tag which can be found 
on the left door pillar.The handling characteristics of a fully load-
ed vehicle depend greatly on the load dis-
tribution. It is therefore recommended to 
load the vehicle according to the illustra-
tions shown, with the heaviest items being 
placed towards the front of the vehicle.
Always place items being carried against 
front or rear seat backrests, and fasten 
them as securely as possible.
The heaviest portion of the cargo should al-
ways be kept as low as possible since it in-
fluences the handling characteristics of 
the vehicle.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown 
around inside the vehicle and can cause in-
jury to vehicle occupants unless the items 
are securely fastened in the vehicle.
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care 
when transporting cargo. Put luggage or car-
go in the trunk if possible. Do not pile lug-
gage or cargo higher than the seat backs. 
Do not place anything on the rear-window 
shelf.
Never drive vehicle with trunk open. Deadly 
carbon monoxide (CO) gases may enter ve-
hicle interior resulting in unconsciousness 
and death. 
     
        
        Page 291 of 442

291 Operation
Tires and wheels
Tire pressure changes by approximately 
1.5 psi (0.1 bar) per 18°F (10°C) of air 
temperature change. Keep this in mind 
when checking tire pressure where the 
temperature is different from the outside 
temperature. 
Tire temperature and tire pressure are also 
increased while driving, depending on the 
driving speed and the tire load.
Check the spare tire periodically for condi-
tion and inflation. Spare tires will age and 
become worn over time even if never used, 
and thus should be inspected and replaced 
when necessary.Checking tire pressure electronically*
The tire inflation pressure monitor only 
functions on wheels that are equipped with 
the proper electronic sensors. It monitors 
the tire inflation pressure, as selected by 
the driver, in all four tires. A warning is is-
sued to alert you to a decrease in pressure 
in one or more of the tires.
Tire pressure inquiries are made using the 
multifunction display (
page 129).The 
present inflation pressures are displayed 
only after a few minutes’ travel time.You can select the unit of measure used for 
the tire inflation pressure by changing the 
setting in the control system (
page 143).
Switch on ignition.
Press the k button until the current 
inflation pressures for each tire appear 
in the multifunction display.
Warning!
G
Follow recommended inflation pressures.
Do not overinflate tires. Overinflated tires 
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes, 
etc.
Do not underinflate tires. Underinflated tires 
wear unevenly, adversely affect handling 
and fuel economy, and are more likely to fail 
from being overheated.
Do not overload the tires by exceeding the 
specified vehicle capacity weight (as indicat-
ed by the label on the pillar in the driver’s 
door opening). Overloading the tires can 
overheat them, possibly causing a blowout.
iPossible differences between the read-
ings of a tire pressure gauge of an air 
hose, e.g. gas station equipment, and 
the vehicle’s control system can occur. 
The readings issued by the control sys-
tem are more precise. 
     
        
        Page 370 of 442

370 Practical hintsFlat tire
Visit an authorized Mercedes-Benz 
Center as soon as possible to obtain a 
new TIREFIT container.
Bring used TIREFIT materials to an au-
thorized Mercedes-Benz Center for 
proper disposal.
Replace your TIREFIT container every 
four years. Replacement containers are 
available at your authorized 
Mercedes-Benz Center.
Mounting the spare wheel
Preparing the vehicle
Prepare the vehicle as described under 
“Preparing the vehicle” on this page.
Take the spare wheel out of the trunk 
(page 350).
Lifting the vehicle
Prevent the vehicle from rolling away 
by blocking wheels with wheel chocks 
(not included) or other sizable objects.
When changing wheel on a level surface:
Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.
Warning!
G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires 
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes 
etc.
Do not underinflate tires. Underinflated tires 
wear unevenly, adversely affect handling 
and fuel economy, and are more likely to fail 
from being overheated.
Do not overload the tires by exceeding the 
specified vehicle capacity weight (as indicat-
ed by the label on the pillar in the driver’s 
door opening). Overloading the tires can 
overheat them, possibly causing a blowout.
Warning!
G
Do not exceed vehicle speed of 50 mph 
(80 km / h). A TIREFIT repair is not designed 
to operate at higher speeds.
The sticker must be attached on the instru-
ment cluster where it will be easily seen by 
the driver.
Vehicle handling characteristics may 
change. Adapt your driving accordingly.