W220 thudding sound

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design guru

Active Member
Joined
Feb 28, 2004
Messages
486
Location
Hampshire
Car
2001 W220 Mercedes S320cdi & 2001 W208 CLK230K (SORN since 2008)
After investigating the ABS light on my car I drove to work only to be presented with a thudding sound coming from the front drivers side wheel area. It sounds worse at low speed but tends to mellow out when speeding up.

I took the wheel off on the weekend to check the calliper bolts were fastened and the ABS plug was in secure and all was fine but it makes this thudding sound now when driving. It sounds a bit like a loose under panel or the sound if you tap the under panels with your hand but constantly, but the panels are on and are all secure, it makes not difference to the driving and the brakes all work fine. No obvious vibrations but does feel a bit unsteady at 70mph.

W220 2001 S320cdi
 

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