160 Vehicle careDriving with a damaged tyreA loss in tyre pressure is indicated bythe deflation detection system.If a tyre has no pressure, continueddriving is possible■ at a speed of max. 80 km/h(50 mph)■ up to a distance of 80 km(50 miles)9 WarningThe vehicle will be more difficult tosteer and handle. Brakingdistance will be longer.Adapt driving style and speed tothe changed conditions.Tyre designationsE.g. 185/65 R 15 88 T185 = Tyre width, mm65 = Cross-section ratio (tyreheight to tyre width), %R = Belt type: RadialRF = Type: RunFlat15 = Wheel diameter, inches88 = Load index e.g. 88 isequivalent to 567 kgT = Speed code letterSpeed code letter:Q = up to 160 km/h (100 mph)S = up to 180 km/h (112 mph)T = up to 190 km/h (118 mph)H = up to 210 km/h (130 mph)V = up to 240 km/h (150 mph)W = up to 270 km/h (168 mph)Tyre pressureCheck the pressure of cold tyres atleast every 14 days and before anylong journey. Do not forget the sparewheel. This also applies to vehicleswith tyre pressure monitoring system.Remove the valve cap key from thefuel filler flap and use it to unscrew thevalve cap.Tyre pressure 3 198 and on the labelon the inside of the fuel filler flap, ifpresent.The tyre pressure data refers to coldtyres. It applies to summer and wintertyres.Always inflate the spare tyre to thepressure specified for full load.The ECO tyre pressure serves toachieve the smallest amount of fuelconsumption possible.Incorrect tyre pressures will impairsafety, vehicle handling, comfort andfuel economy and will increase tyrewear.
