What to do if the illuminated pushbutton “Replace filter element” is lit on my MTU Engine?
- DDavid MartinezAug 1, 2025
When the maximum permissible differential pressure of 1.5 bar is exceeded, the illuminated pushbutton will light up. If you don't replace the coalescer filter element, the pressure will continue to increase, and the safety valve will open, leading fuel directly into the overflow tank. To resolve this, replace the coalescer filter element and then press the illuminated pushbutton “Replace filter element” to acknowledge the replacement.