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Observethefollowing when selecting, installingandreplacing tires:
ROnly use tires and wheels ofthe same type(summer tires, winter tires, MOExtendedtires) andthe same make.
ROnly install wheels ofthe same size on oneaxle (left andright).
It is only permissibletoinstall a differentwheel size intheevent of aflat tire in ordertodrivetothe specialistworkshop.
ROnly install tires ofthe correct size ontothewheels.
RVehicles with a tire pressure monitoringsystem:All installed wheels must be equip‐ped with functioning sensorsforthe tirepressure monitoring system.
RAttemperatures below 45 °F (7 °C), use win‐ter tires or all-season tires marked M+Sforall wheels.
Winter tires bearingthe Msnowflake sym‐bol in additiontothe M+S marking providethe best possible grip in wintryroad condi‐tions.
RFor M+S tires, only use tires withthe sametread.
RObservethe maximum permissible speedforthe M+S tires installed.
Ifthis is belowthevehicle's maximum speed,this must be indicatedbyan appropriatelabel inthe driver'sfield of vision.
RBreak in new tires at moderate speedsforthefirst 60 miles (100 km).
RReplacethe tires after sixyears atthe latest,regardless ofwear.
RWhenreplacing with tires that do notfea‐turerun-flatcharacteristics:vehicles withMOExtended tires are not equipped with aTIREFIT kit atthefactory.Equipthevehiclewith a TIREFIT kit afterreplacing with tiresthat do notfeaturerun-flatcharacteristics,e.g. winter tires.
For more information on wheels and tires, con‐tact aqualified specialistworkshop.
Be suretoalso observethefollowing furtherrelated subjects:
RNotes on tire pressure (→page 386)
RTireand Loading Information placard(→page 393)
RTiresize designation, load-bearing capacity,speedrating and load index (→page 400)
RTirepressuretable (→page 387)
Notes onrotating wheels
\nWARNINGRisk of injurythrough differ‐ent wheel sizes
Interchangingthe front andrear wheels ifthewheels or tires havedifferent dimensionsmay severelyimpairthe drivingcharacteris‐tics.
The wheel brakes or wheel suspension com‐ponents may also be damaged.
Rotatefront andrear wheels onlyifthewheels and tires are ofthe same dimen‐sions.
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Thewear patterns onthe front andrear wheelsdiffer:
RFront wheelswear more onthe shoulder ofthe tire
RRear wheelswear more inthe center ofthetire
Onvehiclesthat havethe same size front andrear wheels,rotatethe wheels accordingtotheintervals inthe tire manufacturer'swarrantybook inyourvehicle documents. Ifthis is notavailable,rotatethe tiresevery3,000to6,000 miles (5,000to10,000 km),depending onthewear. Ensurethatthe directionofrotation is maintained.
It is imperativetoobservethe instructions andsafety notes on "Changing a wheel" when doingso Preparingthevehiclefor a wheelchange(→page 409).
Notes onstoring wheels
Whenstoring wheels, observethefollowingnotes:
RAfterremoving wheels,storethem in a cool,dry and preferably dark place.
RProtectthe tires from contact withoil, greaseor fuel.
Overview ofthe tire-changetool kit
Apart from some country-specificvariants,vehi‐cles are not equipped with a tire-changetool kit.For more information on whichtire-changetoolsarerequired and approvedfor performing awheelchange onyourvehicle, consult aqualifiedspecialistworkshop.
Required tire-changetools may include,forexample:
RJack
RChock
RLug wrench
RAlignment bolt
The tire-changetool kit is located intool bag1.
1Tool bag
Tool bag1contains:
RJack
RGloves
RLug wrench
RAlignment bolt
RFoldingchock
RRatchetfor jack
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Setting upthefoldingchock
Preparingthevehiclefor a wheelchange
Requirements:RTherequired tire-changetool isavailable. Ifyourvehicle is not equipped withthe tire-changetool kit, consult aqualified specialistworkshoptofind out about suitabletools.
RThevehicle is not on a slope.
RThevehicle is on solid, non-slippery and levelground.
Applythe electric parking brake manually.
Movethe front wheelstothestraight-aheadposition.
Vehicles with automatic transmission:Shift into position ].
Vehicles with level control system:Setthenormalvehicle level (→page192).
Switch offthe engine.
Make surethatthe engine cannotbestarted.
Placechocksorother suitable items underthe front andrear ofthe wheelthat is diago‐nally oppositethe wheelyou wishtochange.
Removethe hub caps if necessary(→page 409).
Raisethevehicle (→page410).
Removing and installing hub caps
Requirements:RThevehicle is preparedfor a wheelchange(→page 409).
Plastic hub cap
Toremove:turnthe center cover ofthe hubcap counter-clockwise andremovethe hubcap.
Toinstall:make surethatthe center cover ofthe hub cap is turned counter-clockwise.
Positionthe hub cap and turnthe centercover clockwise untilthe hub cap engagesphysically and audibly.
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