Daylight running lights on c-class mercedes will not switch off?

Question

purchased new 2001 c240 model auto only done 7000 miles yes that is correct 7000 miles

Answer 1

Don't waste time asking questions on the web if you have only just bought the car, just take it back to the Mercedes-Benz dealer you purchased it from and get it repaired under the warranty. If you are talking about the automatic lighting which operates when lighting levels fall this is just a simple adjustment but cannot be done by you.  

Answer 2

Never go off? even when you remove the key? Then you have a wiring problem, like a stuck relay.

They are supposed to stay on all the time, unless the key is removed or the emergency brake is on.

Answer 3

I did not think that  this model had daylight running lights hardly any mercs do so I think you have a wiring problem