Bobcat S175 M4521 Error Code
M4521 Error Code
Water In Fuel Sensor Out of Range High is the main cause of M4521 error.Particularly in colder temperatures, starter failure seems to be a problem that happens more and more. In order to determine future performance, during the beginning of the winter season, the starter mechanism should be reviewed. Clear signs of problems with a starter will likely be noticed by the operator first.
Tip For S175 Model
There is a control lock sensor in the left
console which deactivates the hydraulic
control levers (joysticks) and the traction
drive system when the control console is
raised. The console must be in the locked
down position for the hydraulic control levers
(joysticks) and traction system to operate.
NOTE: If the control lock sensor does not deactivate
the control levers and traction system when
console is raised, see your Bobcat S175 dealer for
service.