Well it looks like a (4-armed) octopus to me:
This is the oil breather hose from the ES9J4S engine (not sure about the earlier ES9J4) - also fitted to C5s and the Laguna II.
The plastic gets brittle with age, and breaks easily. Once broken, you will get oily residue coating your engine and some impact on engine performance, as air can be sucked directly into the throttle body. Here is what was left of mine after removal.
It is fitted on the RHS (as you face the engine bay) of the motor. The main secret to removal and refitting is to remove the aircleaner and the concertina pipe connecting it to the throtttle body.
This diagram gives some idea as to where it sits:
Each hose end is held in place by an inbuilt spring clip. To release, press in the yellow part of the enlarged end of each hose. This can be done by pressing with a screwdriver.
I found I needed to use another screw-driver to lever each hose end off the spigot that it is pressed onto, at the same time as depressing the yellow release bar.
It is only the 'flexible' hose sections that get brittle and break, so no doubt it would be possible to replace them with appropriate length sections of flexible rubber tubing, but the complete part is readily available, and I would think that there would be a risk of rubber hose developing kinks over time, as the pipes follow very convoluted paths.
The part number is 1192v7, and it cost $171 (inc. postage) from EAI. I am sure that a noticeable flat spot in performance at low revs has magically disappeared, and gear changes may be a little smoother (due to better throttle response), although I'm not quite as convinced of that.
Cheers
Alec
This is the oil breather hose from the ES9J4S engine (not sure about the earlier ES9J4) - also fitted to C5s and the Laguna II.
The plastic gets brittle with age, and breaks easily. Once broken, you will get oily residue coating your engine and some impact on engine performance, as air can be sucked directly into the throttle body. Here is what was left of mine after removal.
It is fitted on the RHS (as you face the engine bay) of the motor. The main secret to removal and refitting is to remove the aircleaner and the concertina pipe connecting it to the throtttle body.
This diagram gives some idea as to where it sits:
Each hose end is held in place by an inbuilt spring clip. To release, press in the yellow part of the enlarged end of each hose. This can be done by pressing with a screwdriver.
I found I needed to use another screw-driver to lever each hose end off the spigot that it is pressed onto, at the same time as depressing the yellow release bar.
It is only the 'flexible' hose sections that get brittle and break, so no doubt it would be possible to replace them with appropriate length sections of flexible rubber tubing, but the complete part is readily available, and I would think that there would be a risk of rubber hose developing kinks over time, as the pipes follow very convoluted paths.
The part number is 1192v7, and it cost $171 (inc. postage) from EAI. I am sure that a noticeable flat spot in performance at low revs has magically disappeared, and gear changes may be a little smoother (due to better throttle response), although I'm not quite as convinced of that.
Cheers
Alec
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