Hello i have a mercury optimax 2006 130hours i have got a alarm error. My dealer check the engine and change til autolube oil sonsor. But the problem is stil there. When i start the engine theres no bip but after 10-15 minutes i got 1 bip and the message on the display? But not more than that. I think the problem starts when the engine have run around 100 hours. Se my problem here on youtube. Sorry my english is not so good 
https://www.youtube.com/watch?v=dFWLHBv9J4Y
https://www.youtube.com/watch?v=dFWLHBv9J4Y