E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

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Old 06-10-2007, 07:45 PM
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1993 Mercedes 300e 4-matic (m103 motor)
Ezl

what are the symptoms of a dead or dying EZL. Also is there a way to read soem codes on ym car at home, if so how? (93 300e 4matic m103 motor)
Old 06-11-2007, 02:09 PM
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1993 Mercedes 300e 4-matic (m103 motor)
anyone?
Old 06-11-2007, 03:13 PM
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Mercedes benz 1991 300ce(RIP), now an 89 300ce
doesnt the ezl leak if its starting to die?
Old 06-11-2007, 04:04 PM
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1993 Mercedes 300e 4-matic (m103 motor)
i have no idea thats why i'm asking
Old 06-11-2007, 05:48 PM
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I know the EZL has some limited fault memory capabilities. We always use equipment in the shop so I am not sure if the impulse counter etc. will help you. Others may know.

With your problem this may be a possible cause. Unfortunately your problem is not something common to these cars so you will either have to be proficient with testing when it fails or resort to parts replacement. The ignition system is pretty basic. Crank sensor, EZL, coil and the secondary ignition system(cap & rotor,wires,ends,plugs,etc.) If it fails every time at temp, then a shop should have no problem diagnosing the problem.
Old 06-11-2007, 05:49 PM
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Originally Posted by crr1612
doesnt the ezl leak if its starting to die?
I have no idea what this means. Maybe you are thinking EHA?
Old 06-11-2007, 10:18 PM
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Mercedes benz 1991 300ce(RIP), now an 89 300ce
Originally Posted by bicylindrico
I have no idea what this means. Maybe you are thinking EHA?
yeah, i think thats what i was thinking too
Old 06-12-2007, 06:46 AM
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1993 Mercedes 300e 4-matic (m103 motor)
how do I read my cars codes?
Old 06-12-2007, 12:41 PM
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88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
Originally Posted by jmoney6
how do I read my cars codes?
If you have a M103 then there are no codes to read.

Trouble shoot the system with basic tools and meters as you're dealing with limited electronics and no real computer control.
Old 06-12-2007, 01:25 PM
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1993 Mercedes 300e 4-matic (m103 motor)
oh ok, In another post someoen mentioned the EHA, what is it where is it, and how can i adjust it.
Old 06-12-2007, 03:56 PM
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88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
Originally Posted by jmoney6
oh ok, In another post someoen mentioned the EHA, what is it where is it, and how can i adjust it.

The EHA ( Electro Hydraulic pressure Actuator ) is located under the fuel distributor.

It takes a signal from the KE Control Unit and regulates the amount of fuel based on speed/throttle/temperature, etc that flows to the injectors.

Not meaning to be sarcastic, but "if you have to ask what it is, then you shouldn't try to adjust it"

Get it out of adjustment and you'll have many problems, from starting to idling, to accelerating and possible fuel leaking !!

What symptoms are you exhibiting ???
Old 06-13-2007, 07:33 AM
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1993 Mercedes 300e 4-matic (m103 motor)
the car will get to temp fine, than just die.
Old 06-13-2007, 09:29 AM
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88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
Originally Posted by jmoney6
the car will get to temp fine, than just die.
Starts easily?
How is the idle before it dies?
Smell raw gas?

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