On my 240D Standard 4-speed, it's got that black box on top of the valve cover. I don't know what it does, controls EGR? I read that it can affect trans shifting on autos, so I don't have to worry about that, I just want it out. It's also connected to some linkage that goes to the air cleaner/intake manifold. What is all this madness? Can I just take of the linkages, plug the vacuum lines and tear it off?

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

I removed mine to give the valve cover a cleaner look. (I also polished the valve cover). I have no idea what it did. My butterfly valve on the intake was also hard-wired in the wide open position. I don't know if it was originally hooked up to it or not.

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

Yes, the little plastic valves control the EGR.
They only have an effect on an Automatic Transmission if they become a source of a Vacuum Leak; otherwise they do and control nothing that effects and Auto Trans.

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84 300D, 82 Volvo 244Gl Diesel

I took it off, looks much nicer now. I plugged up the vacuum hoses with bbs and just popped the linkage off. It didn't look like it was controlling anything.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

Thats on a 300d, the valve on the 240D controls shift timing.

They control shift timing on a manual trans 240D? Like with mind control waves, or what?

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Ash Peltier - tools, truck, tales
---------510-331-4118-----------
1982 240D - (272,000)
1998 Honda VTR1000F(RT) Superhawk Freeway (58,000) "Madrid"
1996 Toyota T100 4x4 (84,000) "Mary Kay"

Pics of your polished valve cover?

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Ash Peltier - tools, truck, tales
---------510-331-4118-----------
1982 240D - (272,000)
1998 Honda VTR1000F(RT) Superhawk Freeway (58,000) "Madrid"
1996 Toyota T100 4x4 (84,000) "Mary Kay"

Huh?

Vacuum.

I don't think he realizes you were talking about autos.

Either that or he's bein' a smaht alec.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

Yes but the tinfoil beanie hat I wear stops them....

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better