100 Instruments, controlsWCoolant temperatureControl indicator lights up redIlluminates when the engine is runningStop and turn engine off, coolanttemperature is too high. Risk of enginedamage. For coolant temperature displaysee page 106. Check coolant levelimmediately – see page 270.8Exterior lightsControl indicator lights green.It is illuminated when the exterior lighting ison – see page 128.1SPORT mode of automatic transmission 3Symbol is lit in the transmission display ifthe SPORT mode 3 is selected.Further information – see page 178.TWinter program of automatictransmission 3 or Easytronic 3Symbol lights in gear display with Winterprogram engaged.Further information – see pages 172, 180.(Door openControl indicator lights up redIt illuminates with the doors open.jEasytronic 3, start engineControl indicator lights up yellow.It illuminates if the foot brake is notoperated. The indicator goes off as soon asthe foot brake is operated. The engine canonly be started with the foot brakeoperated, see page 169.tBulb replacement 3Control indicator lights up redIt illuminates if a bulb is defective. Checkthe lights and replace any defective bulbs.Replacing bulbs, see page 249.