Page 146 of 473

145 Controls in detail
Control system
Standard display menu
1Main odometer
2Outside temperature
3Current gear selector lever position
4Trip odometer
5Automatic transmission program mode 
Press button è or ÿ repeatedly 
until you see the standard display 
menu in the multifunction display.You can modify the standard display menu. 
Instead of outside temperature 2, you 
can choose the digital speedometer to be 
displayed in the left multifunction display 
by changing the setting in the 
Select dis-
play
 function of the 
Inst. cluster
 sub-
menu (
page 157).
Press button k or jto select 
the functions in the standard display 
menu.
The following functions are available:Display digital speedometer or outside 
temperature
Press button k or juntil the 
digital speedometer or, depending on 
the chosen setting, the outside temper-
ature appears in the right multifunction 
display.
Function
Page
Calling up digital speedometer
145
Calling up maintenance service 
indicator
320
Checking tire inflation pressure
292
Checking engine oil level
276
i
If you have selected the digital speedometer 
for the standard display (
page 157), select the 
outside temperature display here. 
     
        
        Page 329 of 473

328 OperationVehicle careLight alloy wheels
If possible, clean wheels once a week.
Use Mercedes-Benz approved Wheel 
Care, a soft bristle brush and a strong 
spray of water for cleaning the light al-
loy wheels.Plastic and rubber parts
Use a gentle dishwashing detergent or 
mild detergent for delicate fabrics as a 
washing solution.
Wipe with a cloth moistened in a luke-
warm solution.
The surface may temporarily change 
color. If this is the case, wait for it to 
dry.Hard plastic trim items
Use Mercedes-Benz approved Interior 
Care, a soft, lint-free cloth and apply 
with light pressure.
Steering wheel and gear selector lever
Wipe with a damp cloth and dry 
thoroughly or clean with 
Mercedes-Benz approved Leather 
Care.
!
Only use acid-free cleaning materials. Acid 
may cause corrosion or damage the clear coat.
!
The vehicle should not be parked for an ex-
tended period of time immediately after it has 
been cleaned, especially not after the wheel rims 
have been cleaned with wheel rim cleaner. 
Wheel rim cleaners can lead to increased corro-
sion of the brake disks and brake pads. There-
fore, the vehicle’s brake system should always 
be warmed-up before it is parked after cleaning. 
To do so, please drive your vehicle for several 
minutes to allow the brakes to dry.
When applying Mercedes-Benz approved Tire 
Care and Mercedes-Benz approved Wheel Care 
products, take care not to spray them on the 
brake disks. 
Warning!
G
Do not use cleaners containg solvents or 
cockpit care sprays to clean the cockpit or 
the steering wheel boss. Cleaners contain-
ing solvents will make the surface porous 
and vehicle occupants could suffer serious 
injuries from plastic parts coming loose in 
the event of air bag deployment.
!
Do not use oil, wax or  scouring agents on 
these parts. 
Never apply strong force and only use a soft, 
non-scratching cloth when cleaning the surface. 
Do not attempt to wipe the surface with a dry 
cloth or sponge.
Otherwise you may scratch or damage the sur-
face.
!
Never apply strong force and only use a soft, 
non-scratching cloth when cleaning the surface. 
Do not attempt to wipe the surface with a dry 
cloth or sponge.
Otherwise you may scratch or damage the sur-
face. 
     
        
        Page 411 of 473

410 Practical hintsFlat tire
Unscrew the alignment bolt, install last 
wheel bolt and tighten slightly.
Inflating the spare tire (collapsible tire)
Take the electric air pump out of the 
trunk (
page 388).1Flap
2Air pump switch
3Electrical plug
4Air hose with pressure gauge and vent 
screw
5Union nut
Open flap 1 on air pump.
Pull out electrical plug 3 and air hose 
with the pressure gauge 4.
Remove the valve cap from the tire 
valve.
Screw union nut 5 onto the tire valve.
Insert electrical plug 3 into vehicle ci-
gar lighter socket.
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.
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 
fall off the jack.!
Do not lower the vehicle before inflating the 
spare wheel tire. Otherwise the rim may be dam-
aged.
Warning!
G
Observe instructions on air pump label. 
     
        
        Page 449 of 473

448 Technical dataFuels, coolants, lubricants, etc.Fuel requirements
Only use premium unleaded fuel:
The octane number (posted at the 
pump) must be 91 min. It is an average 
of both the Research (R) octane num-
ber and the Motor (M) octane number: 
(R+M)/2). This is also known as the 
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates 
such as ethanol, IPA, IBA and TBA can be 
used provided the ratio of any one of these 
oxygenates to gasoline does not exceed 
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not 
exceed 3% plus additional cosolvents.Using mixtures of ethanol and methanol is 
not allowed. Gasohol, which contains 
10% ethanol and 90% unleaded gasoline, 
can be used.
These blends must also meet all other fuel 
requirements, such as resistance to spark 
knock, boiling range, vapor pressure, etc.
Gasoline additives 
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the 
use of quality gasoline containing additives 
that prevent the build-up of carbon depos-
its.
After an extended period of using fuels 
without such additives carbon deposits 
can build up, especially on the intake 
valves and in the combustion area, leading 
to engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss