I ordered the correct spring from a local dealer, which I will install this weekend(I bought the Mercedes spring compressor on Ebay). I also ordered the (8mm) shim as shown in the parts catalog. They say this is for the Blue colored spring. The (13mm) shim is for the red colored spring. Does anyone know what is the difference between blue and red? There is also an 18mm and 23mm shim available. How do I know which one I need?

My primary focus is to get the height correct on the left side. The struts are new (1 yr old) and are Biltein HDs. All the steering linkages were also replaced with the control arms. Is the eccentric bolt position part of the alignment, or does it not change?


2004 CLK 500 Convertible 17kM
1987 300TD 206kM
1987 300D 188kM