I've had a noise coming from the passenger side for some time now. It sounds like it's coming from under the front passenger seat.

It's a tinny/metallic/whirring/tapping - a bit like the sat nav disc firing up.

It occurs on smooth roads and gets worse the faster I go.

I've removed the Sat Nav disc and it still occurs.

It's been in under warranty and the dealer replaced a speaker claiming that was it, but the noise returned.

Before I stick in the dealer's for another fruitless few days, has anyone experienced similar or have any suggestions?

Sounds like the sat nav unit as I seem to remember that is where you would have removed the disc from.

With the disc removed, does it still make the noise? Does the unit read the disc ok when it is in place?

Could just be a noisy unit that works ok, but not as quietly as other peoples  06 RRS TDV6 HSE, Java/Ebony, PTI, Running Boards, Privacy, S/C Grille/Vents, Stormers, Tasmods, Black Badge Soon...

PLEASE HELP DEVELOP TROTTERLAND, JUST CLICK A DIFFERENT LINK EACH DAY:
Population - http://trotterland.myminicity.com
Roads - http://trotterland.myminicity.com/tra
Industry - http://trotterland.myminicity.com/ind
Crime - http://trotterland.myminicity.com/sec

Yep, I'm pretty convinced it's the sat nav unit, but it makes the same noise with no disc in place.

I had a quick look at disconnecting the unit to prove it once and for all but haven't tried that yet as the cables were a bit fiddly to remove.

Do you have sill plates? I found that I hadn't stuck the drivers side one down hard enough and it was rattling on the underside of the door at speed on less than velvet smooth roads. A Carbon Footprint is the mark a lump of coal makes when it's dropped on the ground.

Tata TDv8 HSE - Stornoway/ebony and straight grain walnut with towpack, Tasmods and an HST grille. Coming soon LEDs in the headlights
Staying - Epsom Green Defender 90 for playing off road

Nope, don't have sill plates.

Check your external door trim - if this is loose it vibrates the faster you go and makes a sound like the one you've got. RRS 2.7 TDV6 HSE Zambezi silver,Alpaca.
On Order - LRX expected 2010
DO NOT CLICK HERE!

just got back from ols so have missed thishowever I had exactly the same problem - take a look at your door trims at the bottom of your nearside door - they make this noise whenthey'e not pressed on correctly.

Hope this helps. RRS - Best Car I've Ever Had
R32 for the wife

Prev
645ci - Silver
Jag XKR - BR Green
BMW 530i MSport Black
BMW 328i - Black

Had this problem meself , untill i realised it was the wife

Now she gets the bus problem sorted

Your wife was making a rattling noise?  

 RRS TDV6 Gone but still around

SL55 AMG
760Li Alpina
BMW 535D M Sport
BMW 320D Coupe M Sport
Shaguar Hard Type (know you all miss her but she's gone)
And A Van For Rex!

Oh and i love the girlzzzzzzzzzz!!!

I assumed most women rattle on ?

You can stop the rattling by buying a replacement handbag I think. 

Replacement? Don't you mean additional hand bag? RRS TDV6 Gone but still around

SL55 AMG
760Li Alpina
BMW 535D M Sport
BMW 320D Coupe M Sport
Shaguar Hard Type (know you all miss her but she's gone)
And A Van For Rex!

Oh and i love the girlzzzzzzzzzz!!!

I suppose - replacing the one she currently has, which will get chucked in the back of the cupboard only to find that in two weeks time, she has to go back to it because the new one doesn't have enough pockets, straps and buckles. 

It's not really like that is it? Oh the joys of all i have to look forward to  RRS TDV6 Gone but still around

SL55 AMG
760Li Alpina
BMW 535D M Sport
BMW 320D Coupe M Sport
Shaguar Hard Type (know you all miss her but she's gone)
And A Van For Rex!

Oh and i love the girlzzzzzzzzzz!!!