The headlamp washers will operate with the windscreen washers when the headlamps are on.
Note: To stop the washer fluid reservoir emptying quickly, the headlamp washers will not operate every time that you use the windscreen washers.
Ford Focus Piston Selection - Engine System
NOTE: The cylinder bore must be within the specifications for taper
and out-of-round before fitting a piston.
Select a piston size based on the cylinder bore.
NOTE: For precision fit, new pistons are divided into 3 categories
within each size range based on their relative pos ...