Knocking Noise from 81 300d

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Knocking Noise from 81 300d - 5/22/2008 4:22:44 PM    aintknoskool4i   Posts: 1 Joined: 5/22/2008 Status: offline took a video of what it sounds like <object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/wLXf3mUlxyc...</param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/wLXf3mUlxyc&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object> Tried using a mechanics stethoscope to identify where it was exactly coming from and no luck. Any ideas as to what or where it is coming from? Post #: 1

RE: Knocking Noise from 81 300d - 5/22/2008 4:46:19 PM    Drrty240D Posts: 154 Joined: 7/30/2006 Status: online Almost sounds like an exhaust valve.  Did you check the exhaust manifold (probably near the rear) for a leak? (in reply to aintknoskool4i) Post #: 2

RE: Knocking Noise from 81 300d - 6/6/2008 11:57:35 AM    boblo_home   Posts: 30 Joined: 6/11/2007 Status: offline http://www.mercedesforum.com/m_77684/tm.htm I posted this and it may be helpful to your problem. I think the sound is OKish. (in reply to aintknoskool4i) Post #: 3

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