Rear spring rubber mounts

[VikDasor]

Dear All,

I am in process of removing my rear suspension/axle and upon removing the rear springs I cannot seem to work out what my current rubber mounting size is as there is no part number printed on the rubbers (possibly aftermarket).
According to the parts book there are 3 sizes available starting from 18mm, 24mm, and 30mm.
Can anyone please advise how I can possibly measure to get the correct ones required for the rear.
The front spring mounts have part number stated  (1132200885) on them and are 32.5mm so I was going to replace them for a new set like for like.
Any advice appreciated.
Thanks

[Klaus Pieper]

Check out the SLS website www.sls-hh-shop.de/en/ where under section 35A Rear Suspension, Item No. 81 the measurement spaces are shown.

[Pawel66]

I guess your question is: which size of rubber pad should you use for the rear?

All three sizes are available at Mercedes. There are 6 sizes available for the front with 32.5mm being the highest.

In absence of knowledge and not being properly educated, I would probably go for the highest for the rear too, but I would check the height of the old pads and, having searched the "ride height" topic as well as having looked at the Technical Manual, calculate approx ride height.

But perhaps someone will chime in with a better answer and information what were the standard factory heights of the pads.

[VikDasor]

Check out the SLS website www.sls-hh-shop.de/en/ where under section 35A Rear Suspension, Item No. 81 the measurement spaces are shown.

Many thanks Klaus, this will certainly help.

[VikDasor]

I guess your question is: which size of rubber pad should you use for the rear?

All three sizes are available at Mercedes. There are 6 sizes available for the front with 32.5mm being the highest.

In absence of knowledge and not being properly educated, I would probably go for the highest for the rear too, but I would check the height of the old pads and, having searched the "ride height" topic as well as having looked at the Technical Manual, calculate approx ride height.

But perhaps someone will chime in with a better answer and information what were the standard factory heights of the pads.

As always, thanks Pawel. I will check the ride height topic to see what I can find and workout.

[Sead]

But perhaps someone will chime in with a better answer and information what were the standard factory heights of the pads.

There were no standard factory heights for front and rear rubber pads above springs. To determine correct heigh you have to use "Tabellenbuch". Height depends on few points:
1. "Sonderausstattung": extra ordered options for car like automatic gearbox, power steering, means you have to know how many extra options your car has, 1, 2 , 3 etc..
2. "Farbkennzeichnung der Federn" : color dotology/marks on springs from factory, ONE white, red and blue color mark on front spring (short, middle and long spring). To be found on lower part of spring. There are also some color lines in the middle of spring but they are nor relevant. In additions to this on rear springs you have one, two or three color marks!. Means: one white line is shortest spring and three blue lines is longest spring. Then you have a chart/table and by combining these information you can look up for correct heigh of rubber pads.
To be more complicated there are also 3 positions of rear spring plate which have influence on rear wheel camber

After 50-60 years you most probably dont have any signs of three colors on your springs so make it easy and go on with a heigh in middle of available ones.

[VikDasor]

There were no standard factory heights for front and rear rubber pads above springs. To determine correct heigh you have to use "Tabellenbuch". Height depends on few points:
1. "Sonderausstattung": extra ordered options for car like automatic gearbox, power steering, means you have to know how many extra options your car has, 1, 2 , 3 etc..
2. "Farbkennzeichnung der Federn" : color dotology/marks on springs from factory, ONE white, red and blue color mark on front spring (short, middle and long spring). To be found on lower part of spring. There are also some color lines in the middle of spring but they are nor relevant. In additions to this on rear springs you have one, two or three color marks!. Means: one white line is shortest spring and three blue lines is longest spring. Then you have a chart/table and by combining these information you can look up for correct heigh of rubber pads.
To be more complicated there are also 3 positions of rear spring plate which have influence on rear wheel camber

After 50-60 years you most probably dont have any signs of three colors on your springs so make it easy and go on with a heigh in middle of available ones.

Thanks for the detailed explanation.
I don’t have those dotology marks on my springs anymore.
I will stick with the front at 32.5 as that is what’s currently on the car and according to the link forwarded by Klaus in his post the rear works out to be 18mm.

Thanks