420SEL SLS Rear Strut Bushings - Mercedes-Benz Forum
 
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post #1 of 8 (permalink) Old 07-14-2019, 08:14 PM Thread Starter
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Date registered: Sep 2010
Vehicle: 1986 Aust. spec 420SEL, U1700L Unimog ex.ADF
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420SEL SLS Rear Strut Bushings

Hi there,

I have an Aus-Spec 420SEL which has SLS, I'm struggling to work out what rubber bushings make up the strut tops on the rear suspension (to fix banging in the rear).
The best I have found is a diagram (not my exact model) that shows two different rubber bushings on-top of one another, is this correct?

The p/n's listed are:

115 326 16 68 (lower)
115 326 17 68 (upper)

Are these BOTH meant to be there, or are they just new-versus-old part numbers?

Input would be really appreciated!

Cheers,
Aaron.
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post #2 of 8 (permalink) Old 07-14-2019, 09:11 PM
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No, I don't think the bushings go on top of each other, though it can look like that in parts diagrams. One is on top of the body sheet metal and one is underneath, like a standard shock mounting.

My question is which bushing goes on top and which goes underneath? I can't find an answer on this for my 560SEC and SEL, either. My part numbers are 1153261668 and 1143260068.

The manual (for my cars) says 1668 is the top bushing. But 1668 is physically larger than the 0068 and the picture in the manual shows the larger bushing on the bottom.

I personally think the larger bushing should go on the top but really would like a definitive answer.

Last edited by luckymike; 07-14-2019 at 09:14 PM.
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post #3 of 8 (permalink) Old 07-14-2019, 10:10 PM Thread Starter
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Originally Posted by luckymike View Post
No, I don't think the bushings go on top of each other, though it can look like that in parts diagrams. One is on top of the body sheet metal and one is underneath, like a standard shock mounting.

My question is which bushing goes on top and which goes underneath? I can't find an answer on this for my 560SEC and SEL, either. My part numbers are 1153261668 and 1143260068.

The manual (for my cars) says 1668 is the top bushing. But 1668 is physically larger than the 0068 and the picture in the manual shows the larger bushing on the bottom.

I personally think the larger bushing should go on the top but really would like a definitive answer.
I'm guessing these two P/N's would be the ones that apply to my 420SEL with SLS also then.

I plan on changing both, but just need the right P/N's.

Last edited by STOIE; 07-14-2019 at 10:13 PM.
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post #4 of 8 (permalink) Old 07-14-2019, 10:27 PM
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Originally Posted by STOIE View Post
I'm guessing these two P/N's would be the ones that apply to my 420SEL with SLS also then.

I plan on changing both, but just need the right P/N's.
Where did you get that 1153261768 number? I can't find it anywhere to help confirm.
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post #5 of 8 (permalink) Old 07-14-2019, 10:29 PM Thread Starter
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Where did you get that 1153261768 number? I can't find it anywhere to help confirm.
Don't really know to be honest, like a 280SEL I think.
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post #6 of 8 (permalink) Old 07-14-2019, 10:31 PM
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I think you'd be safer using the numbers from my 560 or getting the numbers off your existing parts.
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post #7 of 8 (permalink) Old 07-14-2019, 10:44 PM Thread Starter
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I think you'd be safer using the numbers from my 560 or getting the numbers off your existing parts.
Existing parts... ha!
Those rubbers are non-existant lol

But yes, I'm pretty sure a 420SEL vs a 560SEL both with SLS, the suspension is virtually the same.
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post #8 of 8 (permalink) Old 07-14-2019, 10:46 PM
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If they're literally non-existent, you're out of luck. But if they're just old, you might be surprised at how you can still read the number, even on an old, compressed part!
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