Some time ago I replaced my rear bushings with Whitelines, because many of them are torn. I don't like the maintenance of polyurethane bushings, so have been looking for other options. I found Mercedes part number 2113520865, and ordered one.
The OE part for the camber, tension and compression links is on the left, and the Mercedes part is on the right:
2113520865.jpg
The Mercedes part obviously has much less rubber (resembling the 2010+ LX bushing), and is much stiffer. In my experience these sorts of bushings also tend to last longer under high cornering loads. I may devise some way to test the relative stiffness of these vs. the whiteline bushing later, but I think it will greatly out-perform the OE bushing.
Bushing ODs:
Whiteline replacement (unused): 1.515-1.1520"
2006 OEM (abraded by being pressed out of arms): 1.512-1.516
Mercedes 2113520865: 1.518
Sleeve lengths are identical. Unfortunately the sleeve ID isn't; its 0.482" (for a 12mm bolt) on the OE bushing and 0.554" (for a 14mm bolt) on the Mercedes part. Fortunately I think I should be able to get some adapters to reduce this slop. Once the bolts are tightened the ID shouldn't matter, as the arm should be held in place by clamping force and friction.
There's also an LCA bushing, part number 2203520027 (though I believe these are available from Chrysler as well), and a spindle bushing, 2303520865. I found these part numbers here.
So to order all Mercedes bushings, I think you need:
10x 2113520865. 4 for the camber links, 4 for the tension links, 2 for the compression link.
2x 2303520865. where the compression link connects to the spindle.
2x 2203520027. For the lower control arms.
This leaves toe link bushings, which I am not seeing in Mercedes' or Chrysler's catalogs. Can anyone confirm if this is a 1.550" OD bushing? I've got an old one of those laying around, and think it came from the toe link.
Its been a while since I've been into the rear suspension on these cars. Do my bushing counts look correct? If so I will go ahead and order the rest of the bushings.
Thanks.
The OE part for the camber, tension and compression links is on the left, and the Mercedes part is on the right:
2113520865.jpg
The Mercedes part obviously has much less rubber (resembling the 2010+ LX bushing), and is much stiffer. In my experience these sorts of bushings also tend to last longer under high cornering loads. I may devise some way to test the relative stiffness of these vs. the whiteline bushing later, but I think it will greatly out-perform the OE bushing.
Bushing ODs:
Whiteline replacement (unused): 1.515-1.1520"
2006 OEM (abraded by being pressed out of arms): 1.512-1.516
Mercedes 2113520865: 1.518
Sleeve lengths are identical. Unfortunately the sleeve ID isn't; its 0.482" (for a 12mm bolt) on the OE bushing and 0.554" (for a 14mm bolt) on the Mercedes part. Fortunately I think I should be able to get some adapters to reduce this slop. Once the bolts are tightened the ID shouldn't matter, as the arm should be held in place by clamping force and friction.
There's also an LCA bushing, part number 2203520027 (though I believe these are available from Chrysler as well), and a spindle bushing, 2303520865. I found these part numbers here.
So to order all Mercedes bushings, I think you need:
10x 2113520865. 4 for the camber links, 4 for the tension links, 2 for the compression link.
2x 2303520865. where the compression link connects to the spindle.
2x 2203520027. For the lower control arms.
This leaves toe link bushings, which I am not seeing in Mercedes' or Chrysler's catalogs. Can anyone confirm if this is a 1.550" OD bushing? I've got an old one of those laying around, and think it came from the toe link.
Its been a while since I've been into the rear suspension on these cars. Do my bushing counts look correct? If so I will go ahead and order the rest of the bushings.
Thanks.