gear/clutch problem ? C5 X7 2009

[amigo]

Hi

got a strange problem on my new c5 x7 2,0 hdi manual 2009

When i start the car it do rattling and sctrattling noise (like a worn Clutch release bearing ) but the noise is going away when i press the clutch pedal down,

so if i release the clutch pedal fast when stand in idle the noise is getting worse and i feel small vibrations in the cabin,
if i realese it gently there is not much noise but more than normal and no vibrations in cabin.
so when i press clutch pedal down there is absolute no rattling or scrattling noise..

What is wrong , its that gearbox problem ? hope any know

[Steve Walsh]

Sounds like Clutch release bearing on its way out, Just done the wife's C4 Clutch, It started just like that and within a few short trips, the bearing disintegrated

[amigo]

but Clutch release bearing only make noise when clutch pedal is pressed down ? And its only 30.000km since i got replaced clutch and flywheel.

[white exec]

Just wondering whether you have a dual mass flywheel (DMF).
Can you put up your VIN, so we can check?

[amigo]

i do think it have DMF but here are the VIN VF7**************[VIN obfuscated, can be read by forum staff]

[amigo]

i have made a video og the problem but trying to see where i can upload it?

[amigo]

video is here

[GiveMeABreak]

Yes all the Diesel X7s have DMFs Chris.

@amigo: Just post the Youtube link to the video - these are supported.

[white exec]

That heavy clonking (rather than just a light rattle) does sound like a DMF having gone sloppy.
It can happen at the sort of kilometrage you're talking about, but I'll let the C5 X7 experts here advise on this one.

[GiveMeABreak]

Yes my DMF was changed at about 40k miles (the previous owner towed ), but careful driving can make these last a lot longer - just don't ride the clutch and don't drive like a boy racer - that's a DMF killer - change gear normally at the right speed and don't use the gears to slow down if you can - brake pads are cheaper than a DMF!