Date registered: May 2005
Vehicle: '07 GL320CDI
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Probably you have a W124, i.e. 300E, and it's common for the oil LEVEL light to come on because of failed sensor in oil pan or failed circuits on back of instrument cluster. if problem is latter, better solution might be to remove the bulb.
You should have an Owner's Manual for your car--it will describe what the light you refer to is called.
They are available for all Merc from your dealer. Not very expensive.