[W126 Coupe] spheres

[Markus Meyer]

Dan,

To drain/bleed the system you can loosen the nut on top of the SLS valve
which is attached to the rear sway bar in the middle.

First, make sure it is your spheres though.  A lot of other things can cause
"thumping".  For one, the rear swaybar links, if you have them, can be bad
and cause this.  They are cheap and easy to replace, just 2 bolts each.  Or
the rubber buffers on the rear struts, one top, one bottom, when they get
old and flattened can cause this.

If you do get the spheres, do yourself a favor and only get genuine MB.
Yes, they cost more money, but the aftermarket don't have a history of
lasting as long, and you'll find yourself doing the job again after a short
amount of time or miles.

Markus

On Sun, Nov 1, 2009 at 11:19 AM, alal30319 at gmail.com <alal30319 at gmail.com>wrote:


> Dan

>

> Does your car have two or four wheel SLS? I have a 450SEL 6.9 which has the

> same setup as the four wheel SLS cars and a 560SEL which has the rear wheel

> only set up.

>

> Replacement on the rear wheel only setup is pretty straight forward. The

> sphere it self is held in place with three nuts and there are two hydralic

> lines that go into it. Open the lines slowly and have a drain pan handy as

> the system is pressurized and will leak a lot. Once the leaking stops then

> slowly remove the hydralic lines and pull the spheres.

>

> Upon replacement, be very careful not to cross thread the hydralic lines.

> I've done that a couple of times on my 450SEL 6.9's because they are a

> little more awkward to get to and you end up trashing the sphere and the

> hydraulic line (which I replaced with a metric brake line) which is a waste

> of money. I would hand tighten it and make sure it goes well into the thread

> before I would put a wrench on it.

>

> I'm not sure how to bleed the system on the rear SLS cars but on the 6.9

> and 4 wheel SLS car you jack the car on all fours an run at 2000rpm for a

> couple of mins. I jacked the rear on my 560SEL and followed the same

> procedure which seemed to have worked.

>

> On the 4 wheel SLS cars, you have 5 spheres and they are a little more

> awkward to get to. But the setup on the spheres is the same. Just be careful

> not to cross thread.

>

> All the best

>

> Al

>

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>

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