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1993 230 TE.1999 om 606 td. and 722.6 3.2L,clk w208 1987 Kit car with 260e running gear.
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767 Posts
Discussion Starter #1
Getting a bit of noise from the rear of my 200k miles wagon.
I have had a good look and many parts are new. The main suspect now is the shocks/rams top mount.
Access is going to be grief so I am not going there till I am ready to sort it.
Do they rust out or will it be the bushes?
The sub frame mounts were welded a few years back and I hope it's not the same here, especially since I have Waxoyl sprayed everywhere I could reach in the past.
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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17,536 Posts
The hydraulic rams are extremely long lived provided the SLS was serviced regularly, i.e. fluid flush and filter renewal every 2 years. If they are not leaking, then in 9 out of 10 cases they are good. About the only failure modes are dust ingress due to weathered dust boots (the more common failure point) OR deterioration of the ends (very rare)
 

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1993 230 TE.1999 om 606 td. and 722.6 3.2L,clk w208 1987 Kit car with 260e running gear.
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767 Posts
Discussion Starter #3
Sounds like play at the top Steve??
Was hoping you would say the pin top bushes don't last 200k and therefor not a rust issue.
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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17,536 Posts
Use a fiber optic camera to check the top of the rams, but unless you see a bunch of rust in the area where they meet the body, chances are they are probably OK (in most cases).

Granted, the UK seems to be the car underbody rust capital of the world. I dread sticking my head underneath a UK car for that very reason.
 

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1993 230 TE.1999 om 606 td. and 722.6 3.2L,clk w208 1987 Kit car with 260e running gear.
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767 Posts
Discussion Starter #6
Like a proper thud, particularly from one side.
When recently well loaded with rubble for the dump the suspension felt and sounded great. After dumping, on the way home it was back to normal, thumping, crashing down when going over speed bumps.
I'm thinking that the car is being lifted by the speed bumps and the rams are (intentionally) too slow to keep up and the body is crashing down on the top of the ram while it is still trying to lift.
Not just speed bumps, any reasonable ripples.
 

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1995 E320 Wagon
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91 Posts
Did you check to see if you have anything rolling around in your spare tire area and first aid kit storage area?
 

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116 Posts
I guess it's the ballbearing on the bottom on the shock that make the sound.
Not easy to find, you need to take it out from the subframe

Sent fra min H8324 via Tapatalk
 

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1983 BMW 633CSi {yeah i know},88 300CE, 93 300TE, 94 SL500, 98 ML320, 01 cl500, 02 ml320
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171 Posts
have you checked the fluid level ? i would jack the car up and look for shock leaks. and while up off the ground check for free play. these shocks do wear out.
 

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04 odyssey (265k) 1995 E320 wagon (295k)
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3,011 Posts
I agree with 201-16, bottom pivot of shock. Its a big ball and socket deal. Under full load, no play. Less weight, it can flop around and make noise. In Pennsylvania, which is same as UK for weather and abusive salt that was my cause.
 

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1993 230 TE.1999 om 606 td. and 722.6 3.2L,clk w208 1987 Kit car with 260e running gear.
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767 Posts
Discussion Starter #11
Nothing rolling around, all the stuff is in the space below where the rear part of the 7 seat is. Seat is removed and the space is a handy locker.
Wouldn't the bottom bearing just give a sort of a click click.
Fluid level is good, no leaks, relatively new spheres .
 

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W124
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I guess it's the ballbearing on the bottom on the shock that make the sound.
Not easy to find, you need to take it out from the subframe

Sent fra min H8324 via Tapatalk
Where is the ball bearing you mentioned? Here is a photo of one of the shocks. Did the dummies at Mercedes duplicate the mistake they made with the 500e shocks? (That unnecessary rusting ball socket at the base of the shock.)
102420.jpg
 

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116 Posts
The part on the bottom where the two bolts goes thru.

This make a loud rumbling, sounds like the whole ting falls apart sometimes.
You can check this and it works ok, but when you take this out and check it may be well used

Sent fra min H8324 via Tapatalk
 
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