Hello, there 's a rattle coming from somewhere under my omega estate. I can hear it while driving slow with windows opened, rattle can't be heard inside a car.  I've already tried the exhaust and heat shields, no rattle, I don't find where it comes from.  Anyone had this issue before? Thanks

is it affected by engine RPM, is it there at idle?

It doesn't matter, always when I drive over those little anoying bumps on the roads it rattles. Seems like something is loose but can't find what, it's metal rattle. Minor anoyance but drives me crazy.... :(

Possibly cats innerds let go :-/

jack up the car safely or better on a ramp..

then try a plastic hammer on suspicious parts..

Tony H wrote on 28. Aug 2011 at 10:45:

Possibly cats innerds let go :-/

Crossed my mind, tried to shake cats while car was up but no rattle inside. Exaust is new from cat to the end. Also passed mot in june

cem wrote on 28. Aug 2011 at 11:08:

jack up the car safely or better on a ramp.. then try a plastic hammer on suspicious parts..

Tried everywhere, I don't have any idea left :-/

gearbox mounts.. 

also could be front exhaust sections they have some isolation material inside which may rattle.. :-/

have you checked the heat shields on the exhaust?

Plomien wrote on 28. Aug 2011 at 11:54:

have you checked the heat shields on the exhaust?

Yes, that was first thing i checked and it hears like heat shield banging somewhere but it 's all ok

cem wrote on 28. Aug 2011 at 11:52:

gearbox mounts..  also could be front exhaust sections they have some isolation material inside which may rattle.. :-/

That's what I didn't check.....going under it now :y

have look in side compartments and spare tyer, drove me nut when had the same and stuff was lose in them, stoped after found them...

Been under, rattle coming from shields around rear breakes?

there are some devices that a number of sound detectors are attached.. some services/mechanics have those.. it would be easier with those imo..

so you can be sure.. :y

cem wrote on 28. Aug 2011 at 16:00:

there are some devices that a number of sound detectors are attached.. some services/mechanics have those.. it would be easier with those imo.. so you can be sure.. :y

My doesn't but I'll find it anyway, thanks :y

Drop links rattle when driving over minor little bumps.

...they live on the front and rear suspension and attach to the arb...

Brikhead wrote on 28. Aug 2011 at 16:36:

...they live on the front and rear suspension and attach to the arb...

....changed both front month or two ago....will check rear asap, didn't even think about that

had the same on mine,rear coil spring was broken,fixed for £80 at kwikfit.
hope this helps
mike

danzigfan wrote on 28. Aug 2011 at 16:44:

Brikhead wrote on 28. Aug 2011 at 16:36: ...they live on the front and rear suspension and attach to the arb... ....changed both front month or two ago....will check rear asap, didn't even think about that

rear brake pad retainers.... have look at it if missing or moved can make a rattle over bumps etc...