2004 G500 making strange knocking noise near exhaust at stoplights
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Joined: Dec 2020
Posts: 1
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From: Huntington Beach, CA
2004 Mercedes G500
2004 G500 making strange knocking noise near exhaust at stoplights
Hey guys,
New G500 owner here. I have a 2004 G500 with 192k. I have been driving around this vehicle for about 2 weeks, and suddenly I heard a pretty loud knocking noise coming from somewhere near the rear driver wheel well. This noise is not consistent at all, I actually left it with my mechanic for a few days and had him drive it home, he didn’t hear it once. Now randomly I’ll be at a stoplight or in a parking lot and hear this random knocking noise until I drive off, then it goes away.
Any suggestions? Thanks in advance.
New G500 owner here. I have a 2004 G500 with 192k. I have been driving around this vehicle for about 2 weeks, and suddenly I heard a pretty loud knocking noise coming from somewhere near the rear driver wheel well. This noise is not consistent at all, I actually left it with my mechanic for a few days and had him drive it home, he didn’t hear it once. Now randomly I’ll be at a stoplight or in a parking lot and hear this random knocking noise until I drive off, then it goes away.
Any suggestions? Thanks in advance.
Last edited by Zach Conley; Dec 21, 2020 at 12:24 AM.
MBWorld Fanatic!
Joined: Nov 2002
Posts: 1,028
Likes: 133
From: Massachusetts
2018 GLE350, 2014 G550, 2000 SL500, 1980 TR8, 1995 E320 Cabriolet
Yes, check the exhaust shield as posted above. Mine loosened up when the nuts fell off, but it created more of a rattling sound than a knocking sound. Also check where the exhaust passes through the frame from side to side. If something has corroded and come loose it can knock against the frame.
