Interesting; what is the point of the ARV in the first place?

--Matt

__________________
KI6CCA

Current Stable:
1987 300SDL
1980 450SEL

Out to Pasture:
1982 300D KIA (Rice Rocket vs. 123: He hit me at 80-100MPH I walked away he went to the hospital. Sounds fair to me!)
1985 300D EURO Scrapped (got more money from state than car was worth)
1979 & 1980 300SD Great Cars!

Air Recirculation Valve

The ARV lowers the intake pressure to allow more exhaust gas flow through the EGR. It let's the exhaust manifold have a higher pressure ratio to the intake manifold.

No EGR, No ARV is the best for any 300D. They only hurt performance, MPG, and reliability.

How would one go about removing/bypassing the EGR?

__________________
1984 300D Turbo Diesel - 211700+ mileage (now sold)
http://www.maj.com/gallery/Ned/benz/sig.jpg
In any of my posts, it is safe to assume
that I'm talking about this car.

Simply remove and plug the vac line.

To remove, drop Brian C a line... he makes nice kits. I put one on my SDL

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Before I removed my EGR, I turned it off by putting a BB in the vac line, and taking a soda can and cutting a plate out of it and installing it between my Intake Maniforld and the EGR Valve. I used 2 EGR gaskets, one on each side of the soda can plate.

My dad has used the Soda can plate on all his cars, that way no one can see that the EGR has been blocked, and its easly removed (on Gassers) for SMOG testing.

__________________

How would one go about disabling the ARV? I am having my EGR disabled as we speak via the blocking plate method, but if I coul dhave more boost without the ARV, I would like to disable that as well... Can anyone give directions on how to do so???

BB's have been known to some how get lodged in the vacuum line that connects to the ARV on the turbo.

__________________
green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons )
white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank)
desert storm primer 63 T-bird "The Undead" (long term hibernation)

http://ecomodder.com/forum/fe-graphs/sig692a.png

I dont have a turbo, but a soda can seems a mite thin with all the heat in the vicinity, how long have you been running with it?

__________________


1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

Removing the EGR will increase the cylinder temp, give you better fuel mileage and more power and increase NoX. Letting the EGR do its thing will lower NoX but raise Co, soot up your engine, reduce fuel mileage and lower cylinder temps, and reduce power slightly.

Its up to you whether you do it or not, I hate the EGR. That is all I will say as big brother (EPA) monitors this site for violators.

__________________
1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

I ran the Soda can for about 2 years, and then about 3 weeks ago i made my own block off plate like the one pictured above.

The BB is the real trick, it keeps the vaccum from opening the valve.

and its was a little thicker then an average soda can because i used an Arazona Tea can

__________________