thats if you remove the intake and clean out all the crud that was in their pre EGR removal...

a car with a working EGR and ARV(air recirculating valve) bad for us good for the EPA

a car with working EGR and non working ARV, bad for us and the EPA

a car with non working EGR and non working ARG.. bad for us and bad for the epa

a car with an EGR removed and testing plate installed and working ARV.. good for us, bad for the EPA

Disable EGR valve? Hadn't heard about that, how is it done?






xafman

84 300DT 182,000 mi

Ummm... IMHO the ARV is worse than the EGR as it keeps your boost low. In fact without EGR the ARV provides no benifits in emissions what so ever. It even makes them worse because it dumps air out of the turbo that you burned fuel to compress.

Best performance No EGR and No ARV.
Worst performance working EGR and ARV

Best emissions working EGR and ARV
Worst emissions No EGR and working ARV

__________________
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 removed all that junk for offroad use only on my 300SD. My boost was a lackluster 8psi before LOL Anyway, added the MBC and it's 12psi now... runs a lot better on the freeway.

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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]

ive been trying to find a compressor housing for the KKK without the ARV on it.

I got one. I was going to put it on my SD but I don't think I am going ot now.

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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]

do gassers have these too?

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

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

--Matt

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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?

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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.

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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???

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?

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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.

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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