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C5 manifold rubber
Posted: Tue Jan 03, 2017 7:19 am
by 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.
C5 manifold rubber
Posted: Tue Jan 03, 2017 7:50 am
by 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.
C5 manifold rubber
Posted: Tue Jan 03, 2017 8:15 am
by Barryefi
Thankyou very much, I'll do exactly that.