Inconsistent Idling

[pam312]

sifu sifu sekalian...need some advicetoday i noticed my car got some slight idling issuewhen the gear lever is at N or P, say either I stop at a long traffic light n gear lever in N or I parked my car and moved lever to P, the idling dips and I feel the engine shake abitits like once or twice within few minutesany idea wats wrong?

 

[BimmerDan]

Try cleaning or replacing the 'Idling Control Valve'. Good luck

 

[pam312]

just came back from the workshop.....found the vanos vacuum hose having a leakage
replaced 4 hoses plus that oil return valve something....
now car back to normal