Hi
I have a diesel model but i posted here rather than diesel discussion as i dont think my question is specific to diesels.

Im restoring an 85 300 SDL (or at least that s what i think it is depending on which VIN research site you believe) and i have noticed that the ride is really hard. It actually feels as though there's really no suspension and every little bump you feel really hard.

What am i missing? Are the shocks worn out?

The wheels i have on it are 15 inch 205 x 65s

I was thinkin maybe of gettting 75s. Has anyone done that ?

thanks for your cooperation

MJ in Morocco.

Does it have hydraulic self-leveling rear suspension?

What tire pressures do you use?

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer

No, no SLS. For the tyres, i think 2.3 or 32 bar

Two things I think of are seized shocks or completely worn out shocks.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Subscribed to learn .

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Perhaps you meant 2.3 bar or 33.4 psi

If you open your fuel cap door you'll see it says 28psi front
30psi rear for normal load.

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'83 SD, 2x '85 SD
You are entitled to your own opinions, you are not entitled to your own facts.

I know. I saw those recommended pressures but it still seems a hard ride wher you feel every small bump. I think i have answered my own question in that it has to be the shocks. they might be the original ones and have had their day.
thanks

Not sure if the 126 has a front subframe. But if it does the subframe bushings may be worn. I know the 126 has a rear subframe and those bushing may be worn. As far as the shocks my 107 calls for Bilistein comforts in the rear and HD up front. When I put in HD's in the rear the ride was significantly harder. There OK if your into that.

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To see my 129 parts for sale visit:
http://stores.ebay.com/The-Mercedes-SL-Store
John Roncallo