2010 Mercedes E-Class Owner's Manual - Page 260

258 Vehicle status messages in the multifunction display Display messages Possible causes/consequences and M Solutions b You have removed the SmartKey from the starter switch, Switch Off Lights opened the driver's door and left the headlamps on or removed the SmartKey with KEYLESS-GO from the vehicle and left the headlamps on. X Turn the exterior lamp switch to $ or c (Y page 87). or X With the fog lamps switched on: Push in the exterior lamp switch to its stop. Check Left Tail and Brake Lamps or Check Right Tail and Brake Lamps Check Left Cornering Light or Check Right Cornering Light Check Rear Left Turn Signal or Check Rear Right Turn Signal The left or right tail lamp/brake lamp is malfunctioning. This message will only appear if all LEDs have stopped working. X Contact an authorized Mercedes-Benz Center as soon as possible. Practical hints b b The left or right corner-illuminating lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 275). b The left or right rear turn signal lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as possible.