A touch disappointed to see this 5 minutes after collecting my car from Mercedes Macclesfield where it had just had its annual service.
This has been one of my historical pet hates and has happened to me several times but this is first time I actually got a message. Usually I pull the dipstick to find it setting over the maximum level but this time I got a nice message....
To be fair the tolerances are really small here and when I did the standard electronic check it showed oil as OK, but a small smidge over and the sensor picked it up. So back it went, they dropped a smidge out and all is good. I will now top it up as and when and next time I told them add 1/2 litre less than Mercedes suggests and I will top it myself. I normally do that, but forgot.
It is probably called by not letting the car fully drain and that smidge of oil left in the sump sets off the sensor.....well that makes sense in my head. Annoying but fixed and the AMG mechanic came to speak in person and take me through the process, so not too annoyed...