Front and Rear suspension bushing replacements

[northNH]

In fact, the #51’s were spec’ed for all 6 and 8 cylinder (and I believe 4 cyl as well) W124 Sportline suspension ASB upgrades, as well as the 036.

 

[gsxr]

In fact, the #51’s were spec’ed for all 6 and 8 cylinder (and I believe 4 cyl as well) W124 Sportline suspension ASB upgrades, as well as the 036.

Yup - I think the firmer ones were for all Sportline and 036, at least for USA-spec 124's.

 

[Kyiv]

It so happened that when replacing dampers several years ago, I did not know better at the time, and got Sachs 115-070 for the front, which is HD type of damper, according to @gsxr, but got Bilstein OE replacement (non-HD) for the rear. So my car is already "unbalanced". Will going for the stiffer outer sway bar bushings be non-advisable in my case? How much of a difference a stiffer outer bushing makes?

My understanding is, the stiffer front suspension, the more understeer-prone it is. I don't take corners in my grandpa, but I don't want to drive straight on my 195/65 Grand touring tires entering a freeway bend a little too fast

 

[gsxr]

The differences are so minor, that for normal street driving, you'd likely never notice a difference. On the track, at limits of traction, a good driver might be able to tell if testing different combinations back to back. But in general, I wouldn't worry about it.

 

[Seangbadee]

As said, the relevant information is very definitely posted in various threads here on the forum. I've even seen threads where all of the suspension components required to do a rebuild are listed by part numbers.

Let me see if I can pull together a good list of "consumable" items for the 500E/E500, by suspension. I'll mark the rubber and bushing items in blue, for emphasis on stuff that does go bad over time.

For most of these parts, two will be required. For ones listed as "repair kit," generall the repair kit will cover both sides.

FRONT SUSPENSION:
Front struts: 124 320 43 30
Front lower control arms:

• Left: 124 330 34 07
• Right: 124 330 35 07

Upper strut mounts: 124 320 14 44
Front strut buffers: 124 323 06 44
Front strut rubber boots: 129 323 01 92
Steering damper: 124 463 04 32
Drag link: 124 460 14 05
Spring shims (only one size needed, depending on ride height desired):

• 8mm: 201 321 09 84 (for use with blue-stripe stock springs)
• 13mm: 201 321 10 84 (for use with red-stripe stock springs)

Sway bar bushings:

• inner: 124 323 47 85
• outer: 124 323 51 85

REAR SUSPENSION:
Rear hydropneumatic struts: 124 320 42 13 (2 required)
Rear hydropneumatic strut hardware/bushing kit: 124 320 03 56 (2 required)

Subframe-related mounts:

• Subframe front bushing repair kit: 124 350 04 41 (includes 2 bushings + hardware)
• Subframe rear bushings: 129 351 14 42 (2 required)
• Subframe rear bushing hardware kit: 124 350 67 08 (1 required)
• Differential mount kit (forward): 124 350 97 08 (NLA)
• Differential mount bushings (rear): 129 351 18 42 (2 required)

Spring shims (only one size needed, depending on ride height desired):

• 8mm: 201 325 09 44 (for use with blue-stripe stock springs)
• 13mm: 201 325 10 44 (for use with red-stripe stock springs)
• 18mm: 201 325 11 44 (not used)

Rear swaybar mount repair kit: 201 320 04 47
Rear swaybar end mounting bar: 124 320 02 89
Rear lower wheel carrier support joint bushing: 230 352 00 27

Five-link rear suspension control arms:

1. Standard bushing tie rod: 210 350 21 53
2. Strut rod: 210 350 33 06
3. Control strut: 210 350 34 06
4. Thrust arm: 210 350 38 06
5. Lower control arm (has bushings installed): 202 350 02 06

In any case, this should get you started. You MUST look at the EPC to confirm things. Again, for many of these items, there are HOW-TO articles that generally list the part numbers involved (unless superseded since, as is the case with the rear lower wheel carrier joint bushings, and I believe some rear subframe mounts).

Note: GSXR may or may not have edited this for clarity and whatnot.

I'm sure I can use some of these for my 1995 E320 sedan