Page 130 of 290

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In manual drive program
M,the transmis-
sion does not shift up automaticallye ven
when the engine limiting speed for the cur-
rent gear is reached. When the engine lim- iting speed is reached, the fuel supplyisc ut
to prevent the engine from overrevving.
Alwaysm ake sure that the engine speed
does not reach the red area of the tachom- eter and observe the upshift indicator.
There is otherwise arisk of engine damage.
X To activate the manual drive program:
turn the drive program selector switch until M appears in the instrument cluster's mul-
tifunction display.
M lights up in red on the drive program
selector switch.
X To deactivate the manual drive pro-
gram: turn the drive program selector
switch and select another drive program.
Upshift indicator The upshift indicator is
afour-stage display
designed to assist you in sporty driving. The upshift indicator allows you to recognize
the ideals hift point for dynamic acceleration.
White segments 0043and yellow segment 0044
light up in succession from left to right.
When red segments 0087light up and the "up"
message appears in the multifunction dis-
play,t he ideals hift point has been reached:
X Shift up using the right-hand steering wheel
paddles hifter (UP) as quickly as possible.
The vehicle shifts up to the next gear. i
If you continue to increase the engine
speed without shifting up in time, the fuel
supplyiss hut off to protect the engine. This
results in abruptly reduced acceleration.
Display for downshift override You cannot shift down with the left steering
wheel paddles hifter if the engine speed is too
high due to adownshift. If you then pull the
left steering wheel paddles hifter, both red
segments 0087light up briefly. AMG button (SETUP)
With the AMG button, you can call up and
store adefaultd rive program setting and the
defaults uspension tuning. X
To store: press and hold AMG button 0043
until you hear atone.
X To call up: press AMG button 0043.
The stored drive program is selected.
X To display: briefly press AMG button 0043.
The multifunction displays hows the SETUP
in the AMG menu (Y page 160). Refueling
Important safety notes
G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fire and explo-
sion. 128
RefuelingDriving and parking 
     
        
        Page 258 of 290

R
wear excessively and/or unevenly
R have an adverse effect on fuel consumption
Overinflated tires G
WARNING
Tires with excessively high pressure can burst
because they are damage dmoree asily by
road debris, potholes etc .Inaddition ,they
also suffer fro mirregular wear, whic hcan
severely impair th ebraking properties and the
driving characteristics. Ther eisarisk of an
accident.
Avoid tir epressures that are to ohigh in all the
tires, including th espare wheel.
Overinflated tires may: R increase th ebraking distance
R adversely affect handling
R wear excessively and/or unevenly
R have an adverse effect on ride comfort
R be mor esusceptible to damage
Maximum tir epressures 0043
Example: maximum permissible tir epres-
sure
Never exceed th emaximum permissible tire
inflatio npressure. Always observe th erec-
ommended tir epressure for your vehicle
when adjustin gthe tirep ressure
(Y page 253).
i The actual values for tires are vehicle-
specific and may deviat efromt hevalues in
th ei llustration. Checkin
gthe tirep ressures
Important safety notes Observe th
enotes on tir epressure
(Y page 253).
Information on air pressure for th etires on
your vehicle can be found:
R on th evehicle' sTire and Loadin gInforma-
tio np lacar dont heB-pillar (Y page 260)
R on th etirep ressure label on th efuel filler
flap (Y page 129)
R in th e"Tire pressure" sectio n(Ypage 253).
Checkin gtirep ressures manually To determine and set th
ecorrec ttirep res-
sure, proceed as follows:
X Remov ethe valve cap of th etiret hatisto
be checked.
X Pres sthe tirep ressure gauge securely onto
th ev alve.
X Read th etirep ressure and compare it with
th er ecommended value on th eTire and
Loadin gInformation placar dontheB-pillar
on th edriver' sside of your vehicle.
X If necessary, increase th etirep ressure to
th er ecommended value (Y page 253).
X If th etirep ressure is to ohigh, releas eair by
pressin gdown th emetal pin in th evalve
usin gthe tip of apen,for example. Then
check th etirep ressure again usin gthe tire
pressure checker.
X Screw th evalve cap ont othe valve.
X Repeat these steps for th eother tires. Tir
ep ressur emonitor
General notes If
at irep ressure monito risinstalled, th evehi-
cle' swheels have sensor sthatm onito rthe
tir ep ressures in all four tires. The tir epres-
sure monito rwarn syou if th epressure drops
in one or mor eofthetires. The tir epressure 256
Tir
ep ressureWheels and tires 
     
        
        Page 269 of 290

i
Tire data is vehicle-specific and may devi-
ate from the data in the example.
In addition to the load-bearing index, load
index 0043may be imprinted after the letters
that identify speed rating 0084(Ypage 264) on
the sidewall of the tire.
R If no specification is given: no text (as in the
example above), represent sastandard
load (SL) tire
R XL or Extra Load: represent sareinforced
tire
R Light Load: represent salight load tire
R C, D, E: represent saload range that
depends on the maximum load that the tire can carry at acertain pressure
Maximum load rating Maximum tire load
0043is the maximum per-
missible weight for which the tire is approved.
Do not overload the tires by exceedin gthe
specified load limit. The maximum permissi-
ble load can be found on the vehicle's Tire and Loading Information placard on the B-pillar onthe driver's side (Y page 260).
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
DOT, Tire Identification Number (TIN) U.S.t
ire regulations stipulate that every tire
manufacturer or retreader must imprint aTIN
in or on the sidewall of each tire produced. The TIN is
aunique identification number. The
TIN enables tire manufacturers to inform pur-
chasers of recalls and other safety-relevant
matters. It makes it possible for the pur-
chaser to easily identify the affected tires.
The TIN is made up of manufacturer identifi-
cation code 0044,tire size 0087,tire type code 0085
and manufacturing date 0083.
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
DOT (Department of Transportation): tire
symbol 0043marks that the tire complies with
the requirement softhe U.S.D epartment of
Transportation.
Manufacturer identification code: manu-
facturer identification code 0044provides
details on the tire manufacturer. New tires
have acode with two symbols.
Tire size: identifier0087describes the tire size.
Tire typec ode:tire type code 0085can be used
by the manufacturer as acode to describe
specific characteristics of the tire.
Date of manufacture: date of manufacture
0083 provides information about the age of a
tire. The first and second positions represent the week of manufacture, starting with "01"
for the first calendar week. Positions three
and four represent the year of manufacture.
For example, atire that is marked with "3208"
was manufactured in week 32 in 2008. All about wheelsa
nd tires
267Wheels and tires Z