nemdis

Thanks for a very helpful comment and link. Though a cure remains elusive at least I know I'm not alone!

Thanks for your response. I guess it's difficult to convey noise levels and types without measurement. Suffice to say the noise level in my C5 is way over what might be acceptable and is clearly related to road surface.

Sounds like excessive tyre noise. Increases with road speed. Almost absent on new smooth road surface, extremely noisy on e.g. new tarmacadam (grit on tar). Doesn't vary with gear, steering from left to right and back, acceleration, braking. Sounds as though it's coming from front or f/o/s. Tried different tyres (Fulda > Michelin) - made no significant difference. Drive shafts probably worn but no sign of play. On an undulating road, the noise increases slightly (or maybe different noise) when the car moves up slightly on the suspension. Can feel more vibration than I would expect through my foot when pressed on floor next to clutch pedal. Sounds like a worn wheel bearing but the note doesn't change with direction or braking (as I would expect,) nor is there any play. It's like the vibration from the road surface is exciting a non-flimsy, non load-bearing component, but what could that be? Front struts are leaking slightly. Could it be o/s intermediate drive shaft bearing (but no play)? Any other ideas? It's really annoying and really spoils an otherwise very smooth car! Thanks fro your time. Regards to all, Mike (160k, hydraulic suspension, saloon)

Name: Citroen C5 1.6 HDI Estate (2004) Date Added: 22 November 2015 - 05:18 AM Owner: nemdis Short Description: Mk2 Purchased May 2011 View Vehicle

Name: Citroen C5 2.0 HDI Exclusive (2008) Date Added: 22 November 2015 - 05:13 AM Owner: nemdis Short Description: X7/Mk3Purchased May 2015 View Vehicle