Can someone please tell me where the idle control valve is located...I think the thing needs a thorough cleaning.

Thanks in advance.

took me awhile to figure out the Tango-Echo thing pretty funny.


do you mean the idle control adjustment knob. idk if its the same on my TD but it could be by the fuse box

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Current
2006 E320 CDI, 57K bought at 67K "Liesl"
1986 190E 2.3-16, 198K bought at 56K "Brigitta"
1987 300TD (Chuggin Along), 292K "Friedrich"
1995 E320 Wagon, 200K "Louisa"

Past
1987 300SDL, (sold) 125K, bought for 1$ "Kurt"

What is it doing/not doing? I have attached a pic of the part you are looking for, I don't remember exactly where it is located. Hopefully it won't turn into a Charlie Foxtrot for you

Attached Thumbnails

 

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Yep! That's the picture I found on Fastlane.


Idle does not want to come down from about 1200rpm...unless I turn the A/C on then it lowers to 1000rpms...however it gradually rises back up sometimes reaching 1500.

Put it in gear and 800 is the mark...drives fine...shifts fine...220,000 miles.

I sold it two years ago, after owning it for ten years. I bought an E320 Wagon to replace it and then I spotted it last month on Craigslist, drove my wife crazy for a week...(why would you want to buy a car back?) said she...yadda, yadda, yadda!...now I have two wagons. I'm fixing it to give to one of my kids.

IIRC between the middle two runners of the intake manifold. Then down some.

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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

Found the Idle Control Valve, removed it, cleaned it and put it back in.

Car started right up but idle returned to 1200 rpms.

Pressed microswitch and idle dropped immediately to 800 and stayed there.

I noticed that the linkage does not touch the microswitch at any time in order to activate it.

Question...is the microswitch activated electrically or mechanically?

After engine shut down I started it up again and again it went right to 1200rpm and only after I predded on the microswitch did it return to 800rpms and stayed there.

i believe that microswitch is activated mechanically. there should be a spring somewhere along those linkages which returns the linkages and hits against that switch. with the engine off, go WOT manually and let go, the linkages should spring back where they belong.

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Allen Kroliczek
Oak Grove Autosport | Oak Grove Autosport
01 G500, 82 300TD, quite a few more.....