testknight

So my car is squeaking like crazy now as I broke a rear spring a while ago. I am replacing both springs and shocks on the rear (going with Bilstein shocks and OEM springs)...as I do this, what other components should I be looking at replacing while I am at it?

I don't know much about suspension, but know enough to follow instructions and have done a spring/shocks/strut job before (not that I remember much of it, long ago). I'm just not familiar enough to know if while I am at this job if I should be getting other components at same time or if you would expect my broken spring would likely cause other issues requiring I replace some pad, bumper or bushing.

Any thoughts?

Last...is this pretty straight forward job? Do I need a spring compressor? I've done a lot of wrenching on cars (a bunch) just not much in terms of suspension...thoughts/advice appreciated...did search for a bit and thought someone could save me more digging and confusion by jumping in with some advice.

RedStripe

TruTaing has a thread, a DIY he put up showing the install of his coilovers. You can reference the install of the rear stuff via that.

It's super easy. No spring compressor needed. You'll basically put car on stands, put jack under control arm to apply force when needed to lower control arm to release the spring. Loosen the one innermost lower control arm bolt to allow it to hinge at the hub, which will release the spring after you've removed the one bolt also in the LCA holding the shock in. Remove bolt on top of shock, and you're done - work in reverse. You'll reuse your stock spring pad at top of spring. Replacing anything else would require unbolting the various arms @ the hub - really no need unless you just felt like replacing camber arm with an adjustable one or replacing the tie rod with a fresh one if it's blown/leaking.

testknight

excellent, thanks much. Doesn't sound too bad at all.

C230 Sport Coup

You need a spring compressor for the front and it's all but impossible with
a regular style compressor. But as stated for the rear, you don't. You use a jack.

RedStripe

I had a local wheel/tire shop that agreed to mount my new coils onto my struts for $10/ea (off the car obviously).
Their wall-mounted compressor couldn't compress the even lowered (Brabus) spring enough to reach the threads on the factory strut shaft.
They went ahead and dismounted both struts for me, so that they were ready to be re-assembled onto the Brabus coils.

It was a Saturday early afternoon, had no choice but to take it to the Benz dealership.

$100 GodDAMMM to spend 5 minutes to compress the springs and tighten the nut on top of the hat.
I argued with the SA -- who Ive done business with before. He wouldn't even look me in the eye. Just continued to stare at his computer screen and tell me "that's what it says to charge".

The difference was that their compressor actually sat on top of the hat, and not the topmost coil.

Regardless, NEVER dealing with that dealership again unless I can get the manager to refund some of that money. Ridiculous.

rostrat

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The above instruction sounds like it would be pretty easy to do. I would love to see some pictures. I am new to mechanics and don't full understand some parts names. Just wanted to do things right.

hahaitzmickey

very easy on rear, if you want to be safe about it make sure you use a spring compressor to remove and install to avoid injuries. i had loaded springs shoot at my fingers and cut me before back in my rice rocket days...when we use to lower cars with coilovers and removing stock spring with limited tools. we use to tie a rope or strap around the spring and cut it with a knife and hoping it don't shoot you in the face. You can borrow one for free at autozone w/ safety deposit. remember safey first. beer second.

rostrat

My rear wheels are low and it has even wear on the inside of the tires. Wondering if I should replace the springs. Alternative or in addition to this, a pair if rear camber bushing may also needs to be installed. Any advice is greatly appreciated.