Ratling sound at low rev

[6cylinder]

3.0SI manuel.

When I let the clutch go at low rev around 700-800rpm I get this sound of something shaking.
Anyone who know what that is?

Just nervous it could be the cam chain, but might just be the exhaust suspension rubber being old...

 

[Mr Tidy]

I'm no expert but if it was a cam-chain issue I would have thought it wouldn't stop once the clutch was engaged.

Dual-Mass Flywheel possibly? Hopefully someone more competent will be along soon!

 

[v40jlt4]

No expert either, but could it be the DISA valve? Can you locate the sound?

 

[6cylinder]

Thanks for feedback guys

The sound seem to come from the motor or under the motor.
It is only shortly at those rpm and only when there is a load on the engine.

What is a DISA valve?

 

[Chris_D]

Could be resonance coming through your teeth?
Falsies?
:evil:

 

[6cylinder]

Could be resonance coming through your teeth?
Falsies?:evil:

Not that old yet :rofl:

 

[v40jlt4]

“ What is a DISA valve?”

Just google bmw DISA valve issues and you’ll find lots of articles and youtube movies. It’s easy to check and even fix.

 

[Sidewaze Samm]

It is only shortly at those rpm and only when there is a load on the engine.

low rpm and under load... what gear are you in? If you could change to a lower gear instead, then it may be pinking to which I believe some N52 engines are prone. But I'm no mechanic...