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  #16  
Old 06-27-2009, 02:25 AM
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Quote:
Originally Posted by DieselAddict View Post
The tranny is the biggest difference. '96 has the old, vacuum-controlled 4-speed auto while the '97 has the newer, electronic 5-speed auto. That certainly could make some difference in acceleration, but I don't think it would be a day and night difference if everything works correctly.
I admit that I have never driven an M-B with an electronic transmission.

But my '96 really takes off if I get the RPM up. Floor it, and you go after a half-second or so while the transmission downshifts to get the revs going.

I can easily envision the electronic transmission downshifting sooner, and getting that engine up to 4000 RPM where it is very happy. That would make the car a lot quicker.

With the '96, you have to not be shy with the kickdown switch if you really want to move. Mash the pedal and you go. After a slight delay...
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  #17  
Old 06-27-2009, 08:03 AM
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The keys on the 96 and 97 are identical...as far as i can tell...why do you ask ?
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  #18  
Old 06-27-2009, 08:21 AM
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do I need to remove the intake manifold and the crossover & clean both out ? I am guessing that this is my problem as I have never done it....someone suggested taking it some where for cleaning....can you do it at home or is it difficult ?
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  #19  
Old 06-27-2009, 11:47 AM
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Originally Posted by briandownunda View Post
do I need to remove the intake manifold and the crossover & clean both out ? I am guessing that this is my problem as I have never done it....someone suggested taking it some where for cleaning....can you do it at home or is it difficult ?
It is very easy to get the intake manifold off of the OM606 in a W124. I assume it should be about the same with it in a W210. Takes a little longer that first time, but still isn't difficult.
Then the cleaning begins.....
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  #20  
Old 06-27-2009, 12:26 PM
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Originally Posted by briandownunda View Post
The keys on the 96 and 97 are identical...as far as i can tell...why do you ask ?
When I had ignition switch problems with my '96, everyone told horror stories of $500 components, having to go to the dealer for reprogramming, etc. What I eventually found was a simple mechanical switch made up of wipers and contacts and no electronics at all.

Apparently, "everyone" had '98-99 models with the electronic key. Since that episode I have been trying to find someone with a '97 to tell me what their key is like. Thank you for finally answering my question. It seems that the break point (for models sold in the US of A) was between 1997 and 1998.

Jeremy
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  #21  
Old 06-27-2009, 12:36 PM
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Originally Posted by JimmyL View Post
It is very easy to get the intake manifold off of the OM606 in a W124. I assume it should be about the same with it in a W210. Takes a little longer that first time, but still isn't difficult.
Then the cleaning begins.....
The IM in a 210 is held on with Torx bolts instead of Allen, as in the OM603. There's a whole forest of plastic lines that distribute crankcase fumes to the 12 different intake valves. These must be handled gently to avoid breaking. The injector pipes are not attached to the IM, one less thing to do.

There are electrical and vacuum connections to the solenoids and flaps that "tune" the intake pipes in the OM606NA; some of these are underneath, out of sight. Once the crossover pipe has been removed, these items can be found and removed. Labeling the parts so they go back in the same place is a good idea. This plumbing in the OM606 Turbo is much simpler or so I have been told.

In the 1995 W124 OM606NA there will be some throttle connections to undo; in the 210 versions the throttle is fly-by-wire and does not need to be removed to access the IM. That is the only difference that I know of between 1995 and later.

I have cleaned manifolds with gasoline and with biodiesel, in each case followed by hot soapy water. I found both fuels to do an adequate job with biodiesel being friendlier to work with. A shop that overhauls engines should have solvent tanks; they would do an excellent job and an unknown (to me) cost.

Jeremy
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"Buster" in the '95

Our all-biodiesel family
1995 E300D (W124) . .239,000 miles My car
1996 E300D (W210) . .313,000 miles Wife's car
Santa Rosa population 170,685 (2012)
Total. . . . . . . . . . . . 722,685
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
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  #22  
Old 06-27-2009, 12:59 PM
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Quote:
Originally Posted by Jeremy5848 View Post
When I had ignition switch problems with my '96, everyone told horror stories of $500 components, having to go to the dealer for reprogramming, etc. What I eventually found was a simple mechanical switch made up of wipers and contacts and no electronics at all.

Apparently, "everyone" had '98-99 models with the electronic key. Since that episode I have been trying to find someone with a '97 to tell me what their key is like. Thank you for finally answering my question. It seems that the break point (for models sold in the US of A) was between 1997 and 1998.

Jeremy
My friend's '97 E300 had a rectangular "switchblade" key like the current VW's.
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  #23  
Old 06-27-2009, 01:11 PM
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From what I remember, there should be a significant difference in performance between a '96 NA and a '97 NA.

Although overall output is the same from both engines...The '97 utilizes a 3.46 differential while the earlier one employs a 2.87. That would equate to a ~20% difference in power 'feel'. That 5 speed transmission will offer better power flexibility, which the peaky NA engine needs. Perfect match for that engine, imho.
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  #24  
Old 06-27-2009, 01:38 PM
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If the differentials are different, that would explain a lot.

Regarding the key, my '96 also has the rectangular switch blade (if that's what it's called) like my VW, but you can't judge it by that. The '96 key system has no programming and replacement keys can easily be purchased "over the counter" without any additional work. Not so with my VW that requires the dealer to program any new key.
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  #25  
Old 06-27-2009, 02:12 PM
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Actually, the dealer isn't the only place that you can get a VW key. I know this because they used to tell you that and got sued. The truth is that a licensed locksmith can acquire the equipment to do these keys, and many have.

There was a class-action suit based on this faulty information from the dealer. I made it a point to opt out of that silly case. But I usually opt out of class-action suits of which I could be a party.
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