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Old 02-05-2005, 09:52 AM
Tom Scordato
Join Date: Feb 2005
Location: Bellefonte PA
Posts: 192
1977 300D Suspension

My 1977 MB rides real well on smooth highway. When I hit a bump it really rocks. I had changed out front end ball joints and upper contro arms about 20K ago.

Car has 225K and shocks do not leak. Will replacing with heavy duty Bilsteins make a difference? Should I replace springs? Any thought please.

Regards Tom

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Old 02-05-2005, 02:20 PM
Registered User
Join Date: Nov 2004
Location: Nova Scotia, Canada.
Posts: 6,510
Thumbs up rock and roll?

Have you tried the shock test of pushing each fender down hard a few times and see if they come to a pretty abrupt stop? Compare your rebound to another simular car? The old gas mercedes cars seemed to be really shock sensitive. Shocks can wear out partially or totally inside without leaking a drop. Have not had bad shocks yet on any of my 123s so do not know if they are as sensitive. You will probably get a better opinion but if car is bouncing and rocking after going over a bump bad shocks are going to be pretty well at top of the list I think. Your springs are probably aged a little but do not have anything to do with the problem other than giving you the bounce etc. that is their function to do. At least it still rolls well? The absolute test is you needing a neckbrace to drive the car after the shocks totally fail. Of course we are all well aware they should last to 500,00 miles but some just do not seem to make it. Sell the old ones on ebay as they are not yet at their 1/2 life point. If you are lucky the car is going to drive and feel so much better when you eliminate the bad shocks you may wonder if it is the same car. The bad shocks have most likely been gradually failing for quite a period of time I imagine.(years) Plus better tire life to boot. There should be a shock (s) link in search function but for my money would buy the brand you mentioned. Regular or heavy duty your choice. Try to make sure country of manufacture is germany if possible. Really if you want any more specifics of testing or whatever just drop another note on this site. Also excuse me having a little fun as the last time I had bad shocks it bounced my brain a little too much.

Last edited by barry123400; 02-05-2005 at 04:04 PM.
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Old 02-13-2005, 10:35 AM
Registered User
Join Date: Oct 2004
Posts: 14
I agree with the previous poster I would be looking at the shocks and at most of the tire places they will do a shock absorber test for you just to check these things out.

If the results come back as not being anything like as good as new replace them and if you have them tested professionally you will also know if it is both front and rear or just one set or even better if it is just one shock that has gone. If it is the latter you'll have to have a look see to find out why this has happened it could just be a bad shock but it also might be a sign of something else worse wrong with the car.


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