manual radio set MERCEDES-BENZ S CLASS 2019 Owners Manual

The systemchecksthe tire pressure andthe tiretemperature ofthe tires installed onthevehiclebymeans of a tire pressuresensor.
New tire pressure sensors, e.g. in winter tires,are automaticallytaught-in duringthefirst jour‐neytheyare used.
The tire pressure appears inthe multifunctiondisplay (→page 255).
Ifthere is a substantial pressure loss or ifthetiretemperature isexcessive,you will bewarnedinthefollowingways:
Rvia display messages (→page511)
Rviathewwarning lamp inthe instrumentcluster (→page 533)
The tire pressuremonitoring system is only anaid. It isthe driver'sresponsibilitytosetthe tirepressuretotherecommended cold tire pressuresuitableforthe operating situation. Setthe tirepressurefor cold tires using a tire pressuregauge. Notethatthe correct tire pressureforthecurrent operating situation mustfirst betaught-intothe tire pressure monitoring system.
In most cases,the tire pressure monitoring sys‐tem will automatically updatethe newreferencevalues afteryou havechangedthe tire pressure.You can, however,also updatethereferenceval‐uesbyrestartingthe tire pressure monitoringsystem manually (→page441).
System limitations
The system may be impaired or may not functioninthefollowing situations:
RIfthe tire pressure is set incorrectly
RIfthere is a sudden pressure loss caused,forexample,byaforeign object penetratingthetire
RIfthere is a malfunction causedbyanotherradio signal source
Make suretoobservethefollowing furtherrela‐ted subject:
RNotes on tire pressure (→page 435)
Checkingthe tire pressure withthe tire pres‐sure monitoring system
Requirements:RThe ignition is switched on.
On-board computer:
,Service.Tires
One ofthefollowing displaysappears:
RCurrent tire pressure of eachwheel:
RTire pressure will be displayed after driving afew minutes
RTire Pressure Monitor Active:theteach-inprocess ofthe system is notyet complete.The tire pressure are already being moni‐tored.
#Comparethe tire pressure withtherecom‐mended tire pressureforthe current operat‐
440Wheels and tires

Head-up Display menu .........................261Media menu ........................................260Menu designs ...................................... 254Menuoverview .................................... 252Multifunction display ...........................255Navigation system menu ..................... 258Operating ............................................ 252Radio menu .........................................259Service menu ...................................... 256Telephone menu .................................. 260Trip menu ............................................ 257
On-boarddiagnostics interfacesee Diagnostics connection
Open-source software.............................. 29
Openingthe trunk lid usingyourfootHANDS-FREEACCESS ...........................73
OperatingfluidsAdditives (fuel) .....................................470Brakefluid ...........................................472Coolant (engine) ..................................472Engine oil .............................................470Fuel (gasoline) .....................................469Notes .................................................. 468Refrigerant (air conditioning system) ...474
Windshieldwasherfluid .......................473
Operating safetyDeclaration of conformity (wirelessvehicle components) ............................. 23Information ............................................ 22
Operating systemsee On-board computer
Operator's ManualVehicle equipment ................................. 20
Operator's Manual (digital).......................18
Overhead control panelMaking calls (Mercedes me connect).............................................................344Overview ...............................................10
P
Paint code................................................ 466
Paintwork (cleaning instructions).........405
Panel heatingSetting .................................................112
Panic alarm................................................ 63Activating/deactivating ......................... 63
Panoramic sliding sunroofsee Sliding sunroof
Parcel net hooks......................................12 6
ParkpositionInserting ..............................................178Selecting automatically........................178
Parkingsee Electric parking brake
Parking aidseeParking AssistPARKTRONIC
Parking AssistPARKTRONIC.................. 222Activating ............................................ 225Adjustingwarningtones ...................... 225Function .............................................. 222Side impact protection ........................ 223Switching off ....................................... 225System limitations ...............................222
Parking assistance systemsseeActiveParking Assist
Parking brakesee Electric parking brake
Parkingfor anextended period..............19 0
Parking lights...........................................145
560Index