ABC hydraulic suspension

[Steveb19]

Hi
Hydraulics on suspension of my CL55 (2002) is playing up. Left rear went down . Rebooted everthing in the hope that it would reset,but when I tried it both left rear and left front are down now! No fluid leaks. Any ideas? Accumulators etc? No point in buying parts until I find out exactly whats gone. Also anyone know where I can buy a coil spring conversion in uk?
Any help apprecated
Steve

 

[W1ghty]

I’ve heard the name yellowspeed coilovers mentioned a couple of times .

 

[Steveb19]

I’ve heard the name yellowspeed coilovers mentioned a couple of times .

Thanks Wighty, ill search for them.spent the weekend on it, no success fixing it. First time for a year or so Ive been on here, it wouldnt recognise me so had to join again as a new member!
Steve

 

[W1ghty]

Thanks Wighty, ill search for them.spent the weekend on it, no success fixing it. First time for a year or so Ive been on here, it wouldnt recognise me so had to join again as a new member!
Steve

Thread from the “other side forum “

Abc yellowspeed coilover conversion

Hi guys I’m new to the group, thanks for having me. I have just had a yellowspeed coilover conversion done on my Cl500. I’m happy with the results, car handles great. Thought I’d try touch base with others to see what settings and ride heights some of you guys are running. Also I’m getting a...

forums.mercedesclub.org.uk

 

[Uky]

Have car take the "Rodeo"-test. This will exercise the ABC-system and it is initiated and perfomed using the Xentry system.
In the beginning, many service stations replaced valvs that had been "frozen" but after realizing that a valve could be accidentally stuck
the rodeo test was introduced and many problems could be resolved without expenceive repairs.

During this test, data is gathered that will indicate any component failure. Also readings of pump pressure, etc. will be recorded.

And if not done so recently - Change the ABC oil as well as the filter in the oil container. An oil change is (or was) not part
of A- or B- service but the oil will rot with time. A fresh ABC-oil is clear green. When it rots, it changes into a grayish color
and becomes more or less "waterish".

 

[alabbasi]

Does it pump back up when you raise the suspension? How long does it take to go down?

 

[AntMB]

I bought a conversion kit from Rock Auto.

 

[renault12ts]

Could be so many things.

Best get the codes read and see what turns up. But, very unlikely for 2 things to go wrong at the same time...so looking for a single cause.

 

[Borys]

Yellowspeeds….ABC light on - just get rid off, pandora’s box. Had s55, nearly lost my mind on it, one thing after the other.
If it wasn’t well maintained it will be your worst nightmare.

 

[Steveb19]

Thanks Wighty, ill search for them.spent the weekend on it, no success fixing it. First time for a year or so Ive been on here, it wouldnt recognise me so had to join again as a new member!
Steve

Hi Wighty,received my new struts yesterday, will be fitting them ss soon as it stops snowing!
Steve