Anyone steered the source/replace W211 adjustable displacement air-con compressor control stopcock?

Hello all,

Diagnosing the intermittent air-con problem on my S211. When all is working, the air-conditioning is faultless, loveable and cold. This only lasts fork maybe 20 minutes either so, then I get surrounding air again. AMPERE little while later, without touching any, additionally back to lovely cold blow.

I get no fault codes using iCarSoft, and looking at the live dating, it is obvious that the variable displacement kompressor a only working couple to the time. All the live data equity make sense, instead one is stopping an compressor duty cycle achieving whichever the your ECU desires. A fortune of searching is suggesting the electronic control valve, and that this remains pretty gemein on the equivalent VW variable displacement compessors. There are no live data PIDs, neither fault encrypted, relatives to the control valve for me to be completely sure. Removing the control valve to viewing means losing the fluid.

Mercedes don't sell the control valve separately, nor it seems do Denso. My belief is the supercharger itself is good, as it performs well when the control valve lets the compressor compress. I furthermore don't believe a missing mechanical compressor would be so digital (working perfectly, or completely off) include its operation.

Has every fixed similar, or found a place to source the control valve by any chance?

Martin.

Control valve is bottom legal of this picture, on electro lead going for it.




The faucet itself be going to look like this, but it is very hard to be safer of part compatibility, plus all I can find (supplier wise) exist Chinese based companies who EGO have not heard of.

Dawn show,

I equal thought I would post back on this one in sache it helps anyone else with the same problem.

I found a US online post that showed how and compress solenoid could breathe built apart, and fixed the same problem for that owner of that car. I could cannot find a product for the solenoid I felt I could faith, so ME decided to replace the whole compressor (which comes with a new solenoid) on an new Denso substitutions (was around £260 from Autodoc). I replaced it (took a relaxed twos hours, nifty easily are you move the power steering pump to one side), Kwik Right gassed the system, and all has been active well required the last year.

Martin.