164 Vehicle careTyre pressure 3 189 and on the labelon the front left door frame.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.9 WarningIf the pressure is too low, this canresult in considerable tyre warm-up and internal damage, leading totread separation and even to tyreblow-out at high speeds.If the tyre pressure must be reducedor increased on a vehicle with tyrepressure monitoring system, switchoff ignition.Tyre deflation detectionsystemThe tyre deflation detection systemcontinually checks the rotation speedof all four tyres.If a tyre loses pressure the controlindicator w illuminates yellow anda warning message is displayed in theDriver Information Center withUplevel-Display. Stop immediatelyand check tyre pressure.Control indicator w 3 88.System initialisationAfter tyre pressure correction orwheel change, the system must beinitiated: Switch on the ignition, pressand hold the DDS button for approx.4 seconds.If the system is ready again,a message is displayed in the DriverInformation Center withUplevel-Display.Tread depthCheck tread depth at regularintervals.
