New member in need of some help! - Mercedes-Benz Forum

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post #1 of 6 (permalink) Old 11-02-2011, 03:19 PM Thread Starter
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New member in need of some help!

Evening all,

I'm new here and in need of some help. I've just taken ownership of an 89 560SEL - beautiful car!

I only plan on getting the car MOT'd and then getting shot of it but therein lies the problem!

I've had a mechanic look it over and all looks sound apart from two main things - the vehicle idliing at 1600RPM which (after some extensive reading) I'm maybe thinking the ICV and secondly the suspension isn't rising.

Soooo. I'm reasonably handy with some tools and a multimeter and would like some assistance in diagnosing the suspension. From what I've read up on, it's SLS with the pull knob next to the lights.

Can someone point me in the direction of a good technical description of how to troubleshoot the suspesion and how it works? And also where I should start with diagnosing the fast idle?

Just looking to get the car MOTd and get shot of it so I would appreciate it if someone could give me an idea of it's worth.

There's no service history, last MOTd four years ago and from what I remember, 110K on the clock. Bodywork in good condition apart from some rust on the offside front wing. 18" AMG wheels and all electrics working.

Thanks for the help in advance. It'd be good to talk to someone technical about the car so if you have some time and would like to help a novice (!), send me a PM please and I can give you a shout.

Cheers all,
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post #2 of 6 (permalink) Old 11-02-2011, 04:13 PM
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Hello and welcome, if you look on the main board index for your model 89 560SEL, you'll get a far better response

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post #3 of 6 (permalink) Old 11-02-2011, 04:17 PM
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Before you tear into anything have a smoke test done.


As far as the suspension problem, have you checked the fluid level?
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post #4 of 6 (permalink) Old 11-02-2011, 04:21 PM Thread Starter
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Location: Aberdeenshire
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Cheers guys. RedLiner I will do. Thanks.

I would check the fluid levels if I knew where to find the reservoir! Where abouts is it housed?

Why a smoke test dare I ask? Is there a good chance that the bores/rings would be worn? It's not really been run on a log journey in four years when it last passed it's MOT.

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post #5 of 6 (permalink) Old 11-02-2011, 04:36 PM
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Welcome aboard; you should chime in into the w126 section for abundant resources relating to your car.

High idle is mostly related to your Idle Control Valve as you mentioned.
Clean it first, and see how it goes before replacing it.

The SLS system has a pump + "balls" in the back - that can fail.
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post #6 of 6 (permalink) Old 11-03-2011, 01:58 AM
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The SLS system has a pump + "balls" in the back - that can fai

The "balls" of which you speak are called accumulators and they are there to keep the pressure balanced, they have a diaphram inside that fails.

Balls by gad, laughing stock more like. You can feel the farce in them.


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