Checking The Valve Sealing - CITROEN C4 2004 Handbook

CHECKING THE POWER STEERING ASSISTANCE PRESSURE

Checking the valve sealing.

Remove the under-engine shield.
Move aside the heat shield from the steering mechanism.
Slacken the unions (2) on the power steering ram.
Uncouple the two supply pipes (3) from the distributor valve, and move them aside.
Fit on the distributor valve the two plugs [8], tighten to 0,8 m.daN.
Move the steering slowly from lock to lock, to drain the ram.
Top up the level of the power steering fluid.
Open the tap [5].
Stop the engine.
B3EP16FC Maintain the engine speed at accelerated idle.
Hold the wheels on full lock, first on one side then on the other.
The pressure should adjust to 105 ± 5 bars.
The pressure is correct: replace the steering mechanism.
The pressure is lower than the values above: replace the distributor valve.
Couple the two supply pipes (3) on the distributor valve; tighten to 0,8 m.daN.
Retighten the unions (2) on the power steering ram; tighten to 0,8 m.daN.
Remove the union [7] on the high pressure pipe (1) and the union [6] on the power steering
electropump.
Refit:
- the high pressure pipe (1); tighten to 2 ± 0,2 m.daN.
- the screen wash reservoir, the front RH splash-shield and the front RH wheel.
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