Ford Focus Owners Manual: Washer fluid check
The front and rear washer systems are
supplied from the same reservoir.
Vehicles with 1.4L Duratec-16V (Sigma) or 1.6L Duratec-16V (Sigma) or 1.6L
Duratec-16V Ti- VCT (Sigma) engine
The fluid level should come up to the
MAX mark when the engine is cold.
If it drops ...
Vehicle fluids
1 Providing it meets the specification defined by WSS-M2C913-C, you can also
use
Ford Engine Oil or an alternative engine oil.
2 On vehicles with a 2.5L Duratec-RS engine, use ...
More about Ford Focus:
Ford Focus Air Deflector - Lower, Radiator
Removal and Installation
NOTE: LH shown, RH similar.
Remove the 2 screws from rear of the air deflector.
Remove the 6 screws and 3 pin-type retainers from the bottom of the air
deflector.
To install, reverse the removal procedure.
...