Instruments and controls 71CautionIf the needle is in the red warningzone, the maximum permittedengine speed is exceeded. Engineat risk.Fuel gaugeDisplays fuel level in the tank.Control indicator Y illuminates if thelevel in the tank is low. Refuelimmediately 3 123.Never run the tank dry. Diesel fuelsystem, bleeding 3 133.Because of the fuel remaining in thetank, the top-up quantity may be lessthan the specified tank capacity.Engine coolanttemperature gaugeDisplays the coolant temperature.left area = engine operatingtemperature not yetreachedcentralarea= normal operatingtemperatureright area = temperature too highControl indicator W illuminates if thetemperature is too high 3 76,3 77.CautionIf engine coolant temperature istoo high, stop vehicle, switch offengine. Danger to engine. Checkcoolant level.For physical reasons, the coolanttemperature gauge shows the coolanttemperature only if the coolant level isadequate.Engine oil level monitorThe engine oil level monitor is correctonly if the vehicle is parked on a levelsurface with a cold engine.If the engine oil level is correct whenthe ignition is switched on OIL LEVELCORRECT appears briefly in theDriver Information Centre.If the engine oil is above the minimumlevel, press the trip computer buttonon the end of the wiper lever within30 seconds of switching on the