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skyluck2001 02-02-2004 09:39 AM

Clack noise coming from rear left
 
Hi All,

My mechanic has not been able to trace this "clack" noise coming from the rear-left of my W124 200E.

The "clack" comes on only during take-off from stationary, and also when I come to a full stop. Sometimes it happens over speed bumps. It is not a recurring clacking noise, just a "clack", or perhaps two "clacks" at most.

Anyone experienced this before? Please advice, thanks.

psfred 02-02-2004 11:24 AM

Check the rear suspension links for worn bushings. Any signs of cracks or shredding rubber means replacement -- I'd suggest torque, thrust, and camber links at least, probably better to do the tie-rods and spring arm bushings as well.

If the links are OK, check the subframe mounts for cracks -- if any are bad, replace all four.

Check differential mounts -- two at the rear end, one at the front. If the diff moves up and down independent of the subframe, the rear mounts are shot. You have to drop the diff down to replace the rears, so it's silly not to replace the front one at the same time (two rubber inserts).

And check the sway bar mounts -- if they are bad, the sway bar can rattle, although this isn't usually noticable on acceleration -- more an annoyance on rough pavement or speed bumps, were the sway bar the go "thumpa-thumpa thump) with a sort of ringing noise as the loose end bangs around. If only one end is loose, it will only happen when the opposite wheel is lifted.

Peter


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