MY 2000 S430 has been great but I have a few questions. I did a search with no luck. Once in a while the car says I have 2 malfunctions, low coolant and low washer fluid. Neither is low. I heard the sensors might be connected. Any idea how I can clean or replace the sensors? Anyone have this problem?

 

all the time replace the washer fluid level sensor. both of these sensors are in series

 

I changed only the washer fluid sensor and the problem seems to be fixed. Easy!