2004 G500 making strange knocking noise near exhaust at stoplights
12-21-2020, 12:17 AM
#1
Newbie
Thread Starter
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; 12-21-2020 at 12:24 AM.
05-01-2021, 11:51 PM
#3
I've always wondered how these screws randomly go missing and always blame the techs for not putting them back.. lol but I guess road vibrations make them fall out over time
05-02-2021, 10:07 AM
#4
MBWorld Fanatic!
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.
