Instrument Panel - Odd Noise
 

Hey Everyboday...please help this is driving me crazy :-( I have a clk200 (w209) 2004 1.8 petrol kompressor...lately I have been noticing a slight rattling noise coming from the Instrument panel when I am travelling over poor road surfaces, it almost sounds as if there is a small piece knocking around in there...has anyone experienced similar? It could also be the air vents I guess as they are close and it's hard to pinpoint with total certainty but it's driving me crazy :-( Thank you in advance!!