My coolant level sensor light goes on after 5 sec on my 98 320 ml.

Checked the coolant level , but it is ok. Dirty level sensor??? I 'm not able to find it, anyone who knows how, where, to check /clean it?

Best regards

Ml 320

Oslo Norway.

__________________
ML 320 (imported from us , a lot of fun in the snow)
E 230 T avantgarde 97(sold)
C 200 T Amg 99(sold)
E 200 Te 90 (sold)
300 tdt 83 ( sold)