Forum

[Barryefi]

According to the service schedule, the rubber intake manifold and air hose should be replaced every two years. Is this really necessary please, seems excessive.

[nigelphoto]

No, its not necessary as rubber degrades a lot slower in a temperate climate. Inspect the parts for cracks (you can test the inlet manifold rubber by spraying WD40 on it while the engine is running - if it 'disappears' i.e. gets sucked in then the manifold is cracked and is leaking). The original items on my 2011 C5 were still on in 2016 when I sold it and they were fine. Put your wallet back your pocket . . . for now.

[Barryefi]

Thankyou very much, I'll do exactly that.