annoying rattle

[Plumber1]

I have a rattling noise right behind drivers seat, when going over small bumps, metal hitting something, cant seem to find it.
Anything to look for or any ideas, Thanks

[Metalman]

First place to look is the turbo heatshield, just bend it a tad if it's rubbing.

[AMG Merc]

Metalman said:

First place to look is the turbo heatshield, just bend it a tad if it's rubbing.

+1 right behind your head.

[Plumber1]

Tried heat shield all ok, is there anything in the tunnel that can rattle, it sounds like one of those triangles you had at school in music, it's driving me nuts

[Adrian W]

Don't want to frighten you but that could be an exhaust manifold

[NobleMartin]

There is a double ended I bolt that is a link in the hand brake linkage in the tunnel.
Above this on my car is a rubber pad that had come lose and allowed the I bolt to rattle against the inside of the tunnel
Difficult to access but might be worth a look.Could be worth seeing if there is any excess play that can be taken out of the linkage.

[R0162]

Is it linked to bumps in the road, or regular like when the engine is running?

[R0162]

Is it linked to bumps in the road, or regular like when the engine is running?

[Plumber1]

Yes it rattles when you go over a bump in the road, even if it is a small one

[joust]

Heat shield for the turbo is very common.

J

[playalistic]

joust said:

Heat shield for the turbo is very common.

J

As is not reading the previous posts

[TuxMan]

There is not many things that can cause that type of rattle , it sounds to me like a alloy panel or heat shield , check wheel arch Inner alloy panels against bottom tray , also check the front heat shield under the manifold as they can vibrate as well , is the battery clamp tight ??

Tux

[joust]

playalistic said:

As is not reading the previous posts

How strange, they weren't there early this morning when I posted that....

[R0162]

Is it just the sound or do you get any resonation or vibration coming into the cabin? Is it a tinny metal on metal rattle sound like you would get from thin metal? Or more of a solid sound from something heavy, I.e a spanner hitting a metal bar?

[Plumber1]

R0162 said:

Is it just the sound or do you get any resonation or vibration coming into the cabin? Is it a tinny metal on metal rattle sound like you would get from thin metal? Or more of a solid sound from something heavy, I.e a spanner hitting a metal bar?

It's a tinny metal on metal sound, it's as if something is floating about and hitting the other part even with the smallest of bumps, it's either right behind me or in the rear end of the tunnel

[951]

Plumber1 said:

It's a tinny metal on metal sound, it's as if something is floating about and hitting the other part even with the smallest of bumps, it's either right behind me or in the rear end of the tunnel

Obvious, I know, but Harness?

Edited by 951 on Monday 2nd July 07:46

[Plumber1]

951 said:

Obvious, I know, but Harness?

Edited by 951 on Monday 2nd July 07:46

Yes, thought of that, tried everything I can get at easily

[simonx50]

Could it be the exhaust they r quite a tight fit, it could be touching something or something laying on the metal undertray rattling.

[key750]

In my car the power steering oil tank was struck in the hood.
I have old (white) oil tank, from where is taken the new one? (black) From BMW?

[R0162]

I doubt its the exhaust as it would create resonance..the sound you are refering to is probably coming from a loose rear tunnel louvre.
Try this first, jack up the car one side, slide under and tap on the louvre, see if it makes the sound