CITROEN C5 Handbook page 118

CHECKS : EXHAUST GAS RECYCLING CIRCUIT C5 - All Types
Engine : 4HX
EGR valve
- Connect tool [1] on the take-off (a) of the EGR valve capsule (2).
- Apply a vacuum of approx. 0.6 bar to activate the EGR valve.
- In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
- Repeat the operation several times.
Butterfly housing
- Remove the air duct between the air/air exchanger and the butterfly housing (1).
- Disconnect the tube (white marking) on the electrovalve (4) (black connector).
- Connect tool [1] on the tube with the white marking.
- Apply a vacuum of approx. 0.8 bar, the flap (b) of the butterfly housing (1) should be closed.
B1BP29NC B1BP29PC
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