Symptoms/Problems due to bad ECU/ECM? - Mercedes-Benz Forum
 
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#1 (permalink) Old 11-25-2008, 07:57 AM
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Symptoms/Problems due to bad ECU/ECM?

Out of curiosity- What are some symptoms or related problems which would happen due to a ECU/ECM going bad/failing?

I heard from my mechanic that one reason to tell is that MB AUX fans will go on repeatedly as an warning sign?

Anyways, Ran my car through the MB Star computer and the same error codes I got last time and also all parts have been replace to new since then are coming up again which includes MAF sensor, hoses and everything else the star picked up.

What are some websites I can purchase a brand new ECU/ECM for a 1995 E420?

Also, what are the going average prices for it new & used?

Are there any sites to where I can buy one used?

I searched eBay but I don't know if this is the appropriate one yet. Also, I'm not sure if the 93-94 are the same as the 95 and if they can be shared

eBay Motors: ECU ECM COMPUTER MERCEDES E420 1993 1994 (item 170274630972 end time Nov-26-08 06:27:09 PST)

Thanks!

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#2 (permalink) Old 11-26-2008, 10:55 AM
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BUMP

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#3 (permalink) Old 11-26-2008, 11:06 AM
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Has your wiring harness been replaced?
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#4 (permalink) Old 11-26-2008, 11:27 AM
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#5 (permalink) Old 09-18-2011, 02:06 PM
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Most Mercedes ecm engine computers will have to be programmed by the Mercedes dealership. My E320 ecm quit working about six months ago so I bought one from a company online mercedes ecm for sale and mercedes auto ecm rebuild they flashed it and programmed the ecm so I was able to use the same immobilizer key. The name of the company I ordered from is ECM Outlet.
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