coolant level warning light w201

[panzerindisgise]

Low coolant light came on yesterday,checked level and it did need a top up. Light remains on!!! temp stable at 80 degrees when driving. Just a bit paranoid as dont fancy a head gasket going. Do these lights need resetting or is the sensor buggered?

 

[Brian WH]

or is the sensor buggered?

Sounds like it or the connection is loose or off.

 

[tacsi]

had this problem loads of time's on my 190E !,
level sensor in the expansion tank get's dirty. and stick's
either take it out and give it a good clean !,
or leave it alone for a few day's and keep on checking the water level, mine used to sort it's self out after a while.