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  #1  
Old 11-23-2009, 02:06 AM
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190D 2.2 EGR Mods

Got a 1984 190D 2.2... Non turbo, California spec.
I found some mentions of an EGR mod that helps performance/economy etc...
Does it work on my car?
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1984 Mercedes 190D 2.2 209k miles
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Old 11-23-2009, 09:05 AM
C Sean Watts's Avatar
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Not too much on the performance side.

Quote:
Originally Posted by Merkey View Post
Got a 1984 190D 2.2... Non turbo, California spec.
I found some mentions of an EGR mod that helps performance/economy etc...
Does it work on my car?
But it WILL help keep the intake MUCH cleaner, and intake air will be a good bit cooler.
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Old 11-23-2009, 10:32 AM
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Sounds good!
Anyone done this on a 190D... all the threads I find are on Turbo cars....
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Old 11-23-2009, 10:37 AM
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Make a plate out of some thin metal and place it b/w the valve and tube leading to intake.

soda cans are perfect.


You can also screw down the adjusting screw on top if yours has one ,but its not as effective if there are leaks.

Remove the vacuum lines and block them off to eliminate them as vacuum leak sources.
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Old 11-23-2009, 03:42 PM
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I think I have an adjusting screw ontop.
Will post a pic later...
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Old 11-23-2009, 08:10 PM
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I removed my egr early on. The only change I noticed was that the car smoked more upon start up after egr removal. Its true that the egr to intake port was very filled with sooty sludge, but in the end I didnt notice any great change in either performance or mileage. 2.2 naturally aspirated engines are not fast cars.

I would say that removing and cleaning your intake manifold once in a while (say every 100,000 miles, will more than compensate for the bad effects of the egr. And change your air filter often.

Beer cans burn out right away and create a noisy exhaust leak. You need something thicker to handle the heat. I used the stainless clamp from the egr flexd tube and a piece of 1/8" steel cut into a circle.
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Old 11-24-2009, 02:43 AM
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This is what I got....


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Old 11-24-2009, 01:53 PM
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AFAIK, there is no EGR system on the 84 2.2's. This came later on the 60x. I have a VERY early one (motor number ...00354). There were changes made very early, but after mine, as i recall it was at motor number ...01736. The changes had to do with cooling/oil openings in the block and head. I don't believe that any 84's have any EGR equipment.
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'84 (11/83) 190D 2.2 5-Speed; Silver/Blue; Motor No. 00354, 402k mi (340+kmi mine)

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Old 11-25-2009, 01:16 AM
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I think mine has an EGR.
There is the valve shown above and a metal pipe that runs around the back of the block to the air flter housing.. and a kinda flap valve...
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  #10  
Old 11-25-2009, 01:37 AM
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Note taken from Mercedes Workshop Manual

"A. General
Starting model year 1984, engine 601.92 is provided
with a pneumatically/electronically controlled EGR system
for California.
Engines in Federal version vehicles are not provided
with EGR."
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