A180d oil level stop car 1.5 diesel

[A class shitty]

Hi , I’ve got 2014 A180d had it serviced at main dealer 4 weeks ago now have message on dash oil level stop car ???
Level is ok on dipstick.
MB said oil level sensor. Changed that and still the same ??

Any idea’s
Thanks

 

[mioba]

Did you yourself change the oil level sensor, did you reset the code after.

If a garage changed the sensor then back to them. Did they connect the wires back up.

 

[A class shitty]

Hi , no codes stored at all , MB break down guy said level sensor was faulty. Still the same with new sensor. Local garage changed it. Thanks