Page 416 of 578

Tires withrun-flatcharacteristics:
#Observethe information andwarningnotes on MOExtended tires (run-flattires).
Intheevent of aflat tire,thefollowing optionsareavailable depending onyourvehicle's equip‐ment:
RVehicles with MOExtended tires:it is pos‐sibletocontinuethe journeyfor a shortperiod of time. Make sureyou observethenotes on MOExtended tires (run-flat tire)(→page414).
RVehicles with a TIREFIT kit:you canrepairthe tires sothat it is possibletocontinuethejourneyfor a short period of time.Todothis,usethe TIREFIT kit (→page415).
RVehicles with Mercedes me connect:youcan make a callforRoadside Assistance viatheoverhead control panel inthe case of abreakdown (→page 344).
RAllvehicles:changethe wheel(→page 458).
Notes on MOExtended tires (run-flat tire)
&WARNINGRisk of accident when drivingin emergency mode
When driving in emergency mode,the han‐dlingcharacteristics are impaired. e.g. whencornering, when acceleratingstronglyandwhen braking.
#Do notexceedthe permissible maxi‐mum speedfor MOExtended tires.
#Avoid any abruptsteering and drivingmaneuvers aswell as drivingoverobstacles (curbs, pot holes, off-road).This applies, in particular,toa loadedvehicle.
#Stop driving inthe emergency mode ifyou notice:
Rbanging noise
Rvehicle vibration
Rsmoke which smells likerubber
Rcontinuous ESP®intervention
Rcracksin tire sidewalls
#After driving in emergency mode havetherimscheckedbyaqualified special‐istworkshop withregardtotheir furtheruse.
#The defective tire must bereplaced ineverycase.
WithMOExtended tires (run-flat tire),you cancontinuetodriveyourvehicleeven ifthere is atotal loss of pressure in one or more tires. How‐ever,the tire affected must not show any clearlyvisible damage.
You canrecognize MOExtended tiresbytheMOExtended marking which appearsonthe sidewall ofthe tire.
Vehicles with tire pressure monitoring sys‐tem:MOExtended tires may only be used in con‐junction withan activated tire pressure monitor‐ing system.
If a pressure losswarning message appears inthe multifunction display,proceed asfollows:
RCheckthe tirefor damage.
RIf driving on, observethefollowing notes.
414Breakdown assistance
Page 417 of 578

Driving distance possible in emergencymode after the pressure losswarning:
Load condition Driving distance pos‐sible in emergencymode
Partially laden50 miles (80 km)
Fully laden19miles (30 km)
The driving distance possible in emergencymode mayvarydepending onthe drivingstyle.Observethe maximum permissible speed of50mph (80 km/h).
If a tire has goneflat and cannot bereplacedwith an MOExtended tire,you can use astand‐ard tire as atemporary measure.
TIREFIT kitstoragelocation
The TIREFIT kit is located underthe trunkfloor.
Mercedesvehicles:observethe notes intheSupplement. Otherwise,you may notrecognizedangers.
Plug-inhybrid:observethe notes inthe Supple‐ment. Otherwise,you may notrecognize dan‐gers.
1Tiresealant bottle
2Tireinflation compressor
Usingthe TIREFIT kit
Requirements:RTiresealant bottle
REnclosed TIREFITsticker
RTireinflation compressor
RDisposablegloves
You can use TIREFIT tire sealanttoseal perfora‐tion damageof upto0.16in (4 mm), particularlythose inthe tire contact surface.You can useTIREFIT in outsidetemperatures downto-4 °F(-20 °C).
&WARNINGRisk of accident when usingtire sealant.
Inthefollowing situations,the tire sealant isunabletoprovide sufficient breakdown assis‐tance, as it is unabletosealthe tire properly:
RThere are cuts or punctures inthe tirelargerthanthose previously mentioned.
RThe wheelrim is damaged.
RYou havedriven at averylow tire pres‐sure or on aflat tire.
#Do not continue driving.
#Consult aqualified specialistworkshop.
Breakdown assistance415
Page 418 of 578

&WARNINGRisk of injuryand poisoningfrom tire sealant
The tire sealant is harmful and causes irrita‐tion. Do not allow ittocome into contactwith the skin,eyes or clothing, and do notswallow it. Do not inhale tire sealant fumes.Keepthe tire sealantawayfromchildren.
Ifyou come into contact withthe tire sealant,observethefollowing:
#Rinse offthe tire sealant fromyour skinimmediately usingwater.
#If tire sealantgets intoyoureyes,thor‐oughlyrinse outtheeyes using cleanwater.
#If tire sealant has been swallowed,immediatelyrinse outthe mouththor‐oughly and drink plenty ofwater.Do notinducevomiting and seek medicalattention immediately.
#Change out of any clothes contamina‐ted with tire sealant immediately.
#If allergicreactions occur, seek medicalattention immediately.
*NOTEOverheating duetothe tire infla‐tion compressorrunningtoo long
#Do notrunthe tire inflation compressorfor longerthan eight minutes withoutinterruption.
Comply withthe manufacturer's safety notes onthesticker onthe tire inflation compressor.
Havethe tire sealant bottlereplacedeveryfouryears at aqualified specialistworkshop.
#Do notremoveanyforeign objects whichhaveenteredthe tire.
#Affix part1ofthe TIREFITstickertotheinstrument cluster withinthe driver'sfield ofvision.
#Affix part2ofthe TIREFITsticker nearthevalve onthe wheel withthefaulty tire.
#Pull plug4withthe cable and hose5outofthe tire inflation compressor housing.
416Breakdown assistance
Page 427 of 578
Mercedes-Benzrecommends transportingyourvehicle inthe case of a breakdown,ratherthantowing itaway.
Fortowing, use atowrope ortow bar with bothaxles onthe ground. Do not usetow bar systems(→page249).
*NOTEDamagetothevehicle dueto tow‐ingawayincorrectly
#Observethe instructions and notes ontowingaway.
Towing with araised axle:towing should beperformedbyatowing company.
Permittedtowing methods
Vehicle equipment/towingmethod
Bothaxles onthegroundFront axleraisedRear axleraised
Vehicles with automatic transmis‐sionYes, maximum31miles (50 km) at31mph (50 km/h)NoYes, ifthesteering wheel isfixed inthe center position with asteeringwheel lock
4MATICvehiclesYes, maximum31miles (50 km) at31mph (50 km/h)NoNo
Breakdown assistance425
Page 429 of 578