2011 MERCEDES E350 COUPE
WDD2073561F118656

I want to replace suspension from sport to standard because of ride comfort.
I found some part to replace, but I don't have any idea about springs.
Beacuse there are 7 front springs and 2 rear springs on EPCnet online.
And even those springs are same for VIN of sport suspension model and VIN of standard suspension model.
Also there is no description for each springs.
There is just color code.
I don't know how to classify those springs, and I can't choose which one I have to buy.
Mercedes says If we want to replace spring, we have to check the color code of stock springs.
But, you know I'm trying to modify, not just changing.
I checked my front spring is 2043212304(3 red 1 white) and rear spring is 2043240604(1 violet 1 yellow).
Maybe, I don't need to change spring.
Only I need are strut, torsion bar and rod.
Am I right ot wrong?
Please advise me.

front strut 2073232300
front torsion bar 2043230665
front rod L 2043203789
front rod R 2043203889
rear strut 2073203830
rear torsion bar 2043260565

Here is the list of 7 front springs and 2 rear springs on EPCnet online.

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