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What is this part ?

Started by Big Tiny, 04 August 2020, 05:44 AM

Big Tiny

Can anyone enlighten me on this part attached to the throttle body ?

Currently completing a complete car overhaul and tidy up.

EGR delete, and wasn't sure what the function of this part was ?

UTn_boy

That doesn't look like any part I've ever seen on a W116. ......unless you have a California version of a W116 diesel.  If so, it's probably related to the EGR system.  If you want to be certain then follow the vacuum lines that go to and from this part.  If one of them connects to EGR then you have your answer. 
1966 250se coupe`,black/dark green leather
1970 600 midnight blue/parchment leather
1971 300sel 6.3,papyrus white/dark red leather
1975 450se, pine green metallic/green leather
1973 300sel 4.5,silver blue metallic/blue leather
1979 450sel 516 red/bamboo

Big Tiny

Hi its W126, Yeah I think its EGR system related. Reason I don't know where it goes is because engine is spread around my workshop at the monent : ) putting things back in next few days, want as much nonsense like this gone.

Max-NL

Does it have a part number?
1971 R107 350 SL
1972 W108 280 SEL 3.5
1975 W116 280 S
1975 W116 450 SEL 6.9 #140
1977 W123 230
1992 W124 230 CE
2001 Ducati Monster S4

Big Tiny

Yes it does, but no luck looking it up.

7 20624 00 4 080

All my picture uploads are failing ??

Just finished setting up TPS. Which was quite easy.


Big Tiny

Just bumping this thread as I can see the pictures are now visible.

Is there any chance this has to do with the AC compensation idle speed up.

I don't don't seem to have that function after putting engine back together. Not a big deal, still have the parts if and when I decide not to bother putting it on : )

If anyone can enlighten me on how exactly the idle up feature works, I'm assuming turn AC on, 12 volt trigger to switch over valve ? what happens then ? what causes idle to increase ?

Big Tiny

edit, double post, removed.