Can anyone help with spring code please?

[mikrt]

My rear springs have been picked up as being rusty, so much so that the colour code can't be seen on my 2013 C220cdi VIN WDD2040022A873829 with AMG SPORT PACKAGE PLUS.

My front springs, which are newer, are Monroes SP3845 @ 3x red / 1x white

I think my options (from Auto-Doc (not necessarily where I'll buy though )) are SP3849 @ 1x violet / 1x yellow or SP 3850 @ 1x violet / 2x yellow

Can anybody please confirm which I should go for (preferably Monroe),

Thank you

 

[alecmascot]

Front strut A 204 320 28 66 ,
Front spring A 204 321 23 04
Rear Spring A 204 324 06 04 1 X Violet 1 X Yellow
Rear Shim A 210 325 02 84 9mm

 

[mikrt]

Front strut A 204 320 28 66 ,
Front spring A 204 321 23 04
Rear Spring A 204 324 06 04 1 X Violet 1 X Yellow
Rear Shim A 210 325 02 84 9mm

Thank you @alecmascot ,brilliant

Lucky you mentioned the shims, I wouldn't have ordered those, first I've heard of them