The
wear pattern son the front andrear tires
differ, depending onthe operating conditions.
Rotate thewheels beforeaclear wearpattern
has formed onthe tires. Fronttires typically
wear more onthe shoulders andtherear tires
in the cent er.
On vehicles thathave thesame sizefront and
rear wheels, youcan rotat ethe wheels accord-
ing tothe inter valsinthe tire manufact urer's
warranty bookinyour vehicle document s.Ifno
warranty bookisavailabl e,the tires should be
rotat edevery 3,000 to6,000 miles(5,000 to
10,00 0km). Dependin gon tire wear, thismay
be required earlier.Donot change thedirec-
tion ofwheel rotation.
Clean thecont actsurfaces ofthe wheel and
the brake discthoroughly everytimeawheel
is rotat ed.Check thetire pressure and,ifnec-
essary, restartthetire pressure losswarning
system (Canada only)orthe tire pressure
monit or(USA only). Direction
ofrota tion
Tires withaspecified directionofrotat ionhave
additional benefits,e.g. ifthere isarisk of
hydroplaning. Theseadvantages canonly be
gained ifthe tires areinstalled correspon ding
to the direction ofrotat ion.
An arrow onthe sidewall ofthe tire indicates
its correc tdirection ofrotat ion. Storing
wheels
Stor ewheels thatarenot being usedinacool,
dry and preferably darkplace. Protectthe tires
from oil,grease, gasoline anddiesel. Mounting
awheel
Prepa ringthevehicle X
Stop thevehicle onsolid, non-slippery and
level ground.
X Apply theelectric parking brakemanually.
X Bring thefront wheels intothestraight-
ahead position.
X Shift thetrans mission toposition 005D.
X Switch offthe engine. X
Vehicles withoutKEYLESS-GO: remove
the Smart Keyfrom theignition lock.
X Vehicles
withKEYL ESS-GO start-func-
tion orKEYL ESS-GO: openthedriver's
door.
The vehicle electron icsare now inposition
0092. This isthe same as“key removed”.
X Vehicles
withKEYL ESS-GO start-func-
tion orKEYL ESS-GO: removetheStart /
Stop button fromtheignition lock
(Y page 125).
X Make surethattheengine cannotbe start ed
via your smartphon e(Y page 84).
X Ifincluded inthe vehicle equipment, remove
the tire- change toolkitfrom thevehicle.
X Safeguard thevehicle against rollingaway
(Y page 145).
i Apart
fromcertaincount ry-specific varia-
tions, thevehicles arenot equipped witha
tire- change toolkit.Some toolsforchanging
a wheel arespecific tothe vehicle. Formore
inform ationonwhich toolsarerequired to
perform awheel change onyour vehicle,
consult aqualified specialist workshop.
Necessary tire-changing toolscaninclude,
for example:
R Jack
R Wheel chock
R Lug wrench
Securing thevehicle toprevent itfrom
rolling away If
your vehicle isequipped withawheel chock,
it can befound inthe tire- change toolkit
(Y page 288).
The folding wheelchock isan additional safety
measure toprevent thevehicle fromrolling
away ,for example whenchanging awheel. Changing
awheel
327Wheels andtires Z
exceed
thevehicle's maximum designspeed
of 50 mph (80km/ h).
You should regularly checkthepressure ofthe
emergen cyspare wheel, particularly priorto
long trips, andcorrectthe pressure asneces -
sary (Ypage 308). Thevalue onthe wheel is
valid.
Sno wchains mustnotbemount edon emer-
genc yspare wheels. General
notes
You canaskforinfor mation regarding permit-
ted emergen cyspare wheels atan authorized
Mercedes- BenzCenter .
An emergen cyspare wheel mayalsobemoun-
ted against thedirect ionofrotat ion.Observe
the time restriction onuse aswell asthe
speed limitation specifiedonthe emergen cy
spare wheel.
Replace thetires after sixyears atthe latest,
regardless ofwear. Thisalso applies tothe
emergen cyspare wheel.
Tire pressure losswarning system(Can-
ada only): aslong asyou aredriving withthe
emergen cyspare wheel mounted,the tire
pressure losswarning systemcannotfunc tion
reliably. Onlyrestar tthe tire pressure loss
warning systemwhenthedefect ivewheel has
been replaced withanew wheel.
Vehicles withtirepressure monitor (USA
only): afteranemergen cyspare wheel has
been mount ed,the system maystilldisplay
the tire pressure ofthe removed wheelfora
few minutes .The value displayed forthe
mount edemergen cyspare wheel isnot the
same asthe curren ttire pressure ofthe emer-
genc yspare wheel. Removing
theemergency spare
wheel Vehicles
withthe"Minispare" emergencyspare
wheel
The "Minispare" emergencyspare wheel is
secured inemergen cyspare wheel bag0043in
the cargo compart ment.
X Open thetailgate.
X Release securing straps0044onemergen cy
spare wheel bag0043.
X Remove emergen cyspare wheel bag0043
with the"Minispare" emergencyspare
wheel.
X Open emergen cyspare wheel bag0043and
remove the"Minispare" emergencyspare
wheel.
Observe theinstruct ions andsafety notesin
the "Changing awheel" section(Ypage 327). 332
Emergency
sparewheelWheels andtires
