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1994 s320
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514 Posts
Discussion Starter #1
I'm confused ,my car is 02/94 s320 ,I got MIL and checked just in case under the dash for the OBDII port, and it was there:eek::confused:.
I went to Autozone and they hooked up the scanner P0400 - EGR malf.
I have X11/4 - 38 pin connector and OBDII, how come?
:confused:
 

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'14 E350, '07 CLK350, '01 SLK320
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1,147 Posts
OBD-II became mandatory in 1996, but the standard was around for a long time before that. You apparently got lucky! :D
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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8,064 Posts
Thats great to hear, I heard from someone on the W140 forum said the late 1995 S320's came with OBDII, but yours maybe the exception-who knows.

I'm picking-up a 1995 W124 E320 wagon tomorrow, and I do hope it has OBDII!!!

About your P0400, you may just have a vacuum leak from old plastic vacuum line in the engine(need to take the flat engine plastic cover to get to the plastic vacuum line)area. If you get a P0400 and P0411(as I did) the y-trunk (rubber) fitting near the intake manifold is "probably" torn. I just repaired mine on May 10.

Martin
 

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1994 s320
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514 Posts
Discussion Starter #4
Its fixed,as you said it was a vacuum line.
So OBDII should have eliminated 38 pin connector,or what is the deal with having both of them on board?:rolleyes:
 

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1914 Mercedes 28/95 hp, 83' 300SD, 93' S420, (three) 94' S420's, 95' S500 & 96' S600
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284 Posts
OBD 1, 1.5, 2 and already developed.... OBD III

Symbolic95....

The 38 pin connector as designed to comply with Worldwide Automotive Standards as well as a variety of Protocol Standards Teams re: OBD I, OBD 1.5, OBDII and now coming OBD III..... many will keep finding the Star 38 pin connector on the modules housing throughout the early, mid and even some of the late nineties (90's). Having both connectors, and also having the nine pin as well, has all the advantages an able Technician with necessary diagnostic abilities with tools.... would require to communicate with the systems via CAN on-board diagnostic means.

I personally prefer to utilize my tried and true Star 38 pin plug connector (via the 140-589-14-63-00....) we designed this to ensure the Technician would be capable to interface with any and all modules/ systems..... the pin layout was constructed to allow an overview of basic fundamental operational status with jumper abilities to over-ride certain modes, etc). I personally prefer to utilize my trusty Fluke digitial meter and my tried and true B&K Oscilloscope. Both of these in concert with other personally designed capacitive coupled units, the technician can understand how the systems are operating.... even to the ability of understanding a distributor drive shafts bearing as being bad and showing up on the O-Scope Sine wave during diagnostics. The Star 38 pin connector have always proven to serve me well when diagnostics were on task.

That STAR 38 pin Diagnostic connector is one of the fantastic means that set the W-140 S-Klasse above and beyond the other earlier manufacturer(s). Thanks for recognizing and bringing this to everyone attention Symbolic95!

Also, I do hope there are others utilizing my diagnostic aid (140-589-14-63-00) as imaged below.... originally this again was designed for Mfg. Technical use only..... but these are still on the market for the range of $155.00 up to $375.00. These do make an intermittent issue become a past occurance real fast.

[We hope this was of interest to all![/I] :thumbsup:

Robert O. and Robert A. :)
 

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1994 s320
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514 Posts
Discussion Starter #6
Hey Robert , i just build myself an Impulse Counter ,and lots of codes came up,OBDII showed just P0400.
:bowdown: to German engineering ,everything is for the reason :)
 

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Thats great to hear, I heard from someone on the W140 forum said the late 1995 S320's came with OBDII, but yours maybe the exception-who knows.

I'm picking-up a 1995 W124 E320 wagon tomorrow, and I do hope it has OBDII!!!

About your P0400, you may just have a vacuum leak from old plastic vacuum line in the engine(need to take the flat engine plastic cover to get to the plastic vacuum line)area. If you get a P0400 and P0411(as I did) the y-trunk (rubber) fitting near the intake manifold is "probably" torn. I just repaired mine on May 10.

Martin
Where is the "Flat engine Plastic cover" located? Can you help? Pic will be great.
--JT
 
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