Hi there I have a 54 x type estate 2.0ltr diesel, recently it's developed a knocking noise when the car is in neutral but as soon as I depress the clutch the noise stops. I have no other issues with the clutch ie: no slipping no problems selecting any gear. Is it as I fear the dmf on its way out or could it be something simpler.
 
	I appreciate any reply 
 
	Thanks John