I have a 2011 f-350 that when I turn the lights on the radio gose out

anti theft is activated call a dealer

reset the alarm follow the instruction and fix it.
God bless you

• 1
  Close all of your car doors.
  
  
• 2
  Insert one key in the door lock and cycle it to the "Lock" position, and then back to the "Unlock" position two times. Leave the key in the lock cylinder.
  
  
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• 3
  Enter your car and insert your key into the ignition cylinder.
  
  
• 4
  Cycle the key in the ignition from the "Off" position to the "On" position twice in a row. The alarm will emit a chirping sound after turning the ignition to the "On" position the second time. This will reset the alarm, making it ready for reprogramming (if necessary).
  
  

Replace your oil pressure sender and see if the dash warning lights turn off. If after changing the oil pressure sender you still have oil pressure warning lights on, you may have to replace your oil pump in your oil pan.

possibly faulty electronic fan control module which is inside the radiator fan, must get your car in to the Mercedes workshop and read fault code and also they can activate and check is the fan is working or not by there diagnostic CPU, if the activation dos not work, then replace the radiator fan , is this information helped you?

Check the fuel lines under the car. Don't actually start the car though, just turn the key until you hear the fuel pump turn on. This will load the fuel system and you will be able to see leaks (or sprays) under the car because of the pressure. If there are no leaks, see if the car runs perfect with a full tank of gas compared to a low tank. It should drive good turning left, but it might **** turning right or after a sudden stop. This could mean you have a crack in the seams of your gas tank or that your fuel pump is going bad (or a little of both).

sending unit inside the gas tank. I would highly recommend to replace the fuel pump at the same time.

Use thinner oil in the winter. A synthetic would be best, like 5-30.

If your talking about the orange arrow, it's the Overdrive indicator light. Try pushing the O/D button on your gear shifter to see if it gose out

it comes on after a certain amount of miles
look it over check all belts hoses brakes fluids
and check the timing belt if all looks good put your key in the slot next to orange light and it will goto green again if you don't reset it will goto red in a few miles but it is not the check eng. light just a reminder

have you checked your brake pads to make sure there not worn down?