HELP! E55 AMG ECU
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Junior Member
Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
HELP! E55 AMG ECU
Is there anyone who may be able to locate a used ECU from a wrecked/salvage W211 E55 AMG?
After months of figuring out why my E55 died (won't turn back on) on me it's been established that ECU has been fried. As to why I have no clue, however, I will need an entirely new unit.
For some reason the faulty ECU on the car has no labels or part #'s on the unit, which is very odd. Apparently MBUSA and not even MB Germany has inventory of any 211 ECU so they would need to make an entirely new one from it's vendor, presumably Bosch
This would take 2-3 months time and I simply cannot wait that long.
Is there an option to find a junkyard ECU and reflash it to my vehicle or is that not possible if they depend on VIN #'s? Thanks!
After months of figuring out why my E55 died (won't turn back on) on me it's been established that ECU has been fried. As to why I have no clue, however, I will need an entirely new unit.
For some reason the faulty ECU on the car has no labels or part #'s on the unit, which is very odd. Apparently MBUSA and not even MB Germany has inventory of any 211 ECU so they would need to make an entirely new one from it's vendor, presumably Bosch
This would take 2-3 months time and I simply cannot wait that long.Is there an option to find a junkyard ECU and reflash it to my vehicle or is that not possible if they depend on VIN #'s? Thanks!
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From: NY
Sold - 05' E55
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Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
Yeah we have figured out that the ECU is dead. An ECU from another E55 was put in the car and it started up. It seems like the one in the car cannot be read by any diagnostics properly.
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This place is a joke.
The ECU is an anti-theft part, and coded to the VIN of the car. It's not possible that one was swapped from another car and started in your car..something is not right here. There may be companies who can wipe the ECU clean from another car to be used in yours. I'm sure the junk yards have plenty of E55 ECU's available too, did you even look?
Last edited by E55Greasemonkey; May 15, 2015 at 09:16 PM.
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
I've tried looking for some junkyard 55's but it's been difficult finding some, but I'm gonna continue the search. I understand the ECU is coded to the VIN, but a different computer was used on the car, and it did start. I've been looking at a couple vendors who can repair the car and I believe they may have the experience from 'no start' on some cars before.
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2006 E55 AMG
Your saga started with a pulley that was fused to the drum, after which you pulled the supercharger off. Then you had issues with flashing the ECU.
I don't mean to be insulting, but there's a good chance that your car doesn't start because of something you did.
If the ECU is fried, then there's a good chance that it was a bad flash on your part. Ask EC if they can bench flash If.
I don't mean to be insulting, but there's a good chance that your car doesn't start because of something you did.
If the ECU is fried, then there's a good chance that it was a bad flash on your part. Ask EC if they can bench flash If.
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Thread Starter
Junior Member
Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
I'll give it a try! The car ran fine for a while, but I couldn't say you're wrong! Thanks for the opinion.
Finally found a unit and it is shipping soon, hoping to have better luck with this unit.
Finally found a unit and it is shipping soon, hoping to have better luck with this unit.
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Joined: Nov 2012
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From: Germany
C215 CL55 AMG, W124 500E, W210 E430, W124 300E
You can not use a other ECU in your car. Its VIN Coded like stated above. Never can it start with a ECU from another car.
There are companies which can transfer all of your ECUs Settings/Maps/Coding to a new one, but this is more or less costly (IIRC around 500$ is charged by some of the vendors that CAN do this).
There are companies which can transfer all of your ECUs Settings/Maps/Coding to a new one, but this is more or less costly (IIRC around 500$ is charged by some of the vendors that CAN do this).
Thread Starter
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Joined: Mar 2013
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From: San Diego, CA
W211 E55 AMG
The codes were transferred.
I found a matching part # and the unit is shipping so hopefully before 2 weeks time I'm able to fix everything. Will flash stock file and make sure everything is back to normal, then proceed with tuner again after.
All should be well soon
I found a matching part # and the unit is shipping so hopefully before 2 weeks time I'm able to fix everything. Will flash stock file and make sure everything is back to normal, then proceed with tuner again after.
All should be well soon
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05 E55 AMG, E320 CDI, Turbo E46 M3,IS300 2JZGTE,VQ35 Turbo Maxima, Mercedes 300D
Do your fans turn on full speed when you turn the key? If they do, then it is most likely unsuccessful flash. Did you try to reflash your current ECU with stock file? I have experienced unsuccessful flashes before ... To minimize battery drain, I disconnected the fans and had a charger on the battery.
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
Do your fans turn on full speed when you turn the key? If they do, then it is most likely unsuccessful flash. Did you try to reflash your current ECU with stock file? I have experienced unsuccessful flashes before ... To minimize battery drain, I disconnected the fans and had a charger on the battery.
The shop told me that they were unable to load any stock software or updated file to the ECU. Apparently it is just unresponsive.
The part # to the unresponsive ECU in the car is different from what part # my VIN # suggests the car to have, so maybe that could be a reason it is unresponsive to the car. I have the properly corresponding part # on its way, but it was from another vehicle. It is in perfect working order but I understand there can be complications if the unit is from another vehicle. Considering it is now the correct part # for the car and it will be properly programmed to my VIN, will the chance for future complications be too high?
I wouldn't think so, but I would like to hear your opinions on it because most of the comments above seem to have knowledge on the matter! Appreciate the help guys!
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E63
Yes, it does exactly that. The fan turns on and the engine doesn't start. I also disconnected the fan to help save battery when trying to figure out what was wrong with it.
The shop told me that they were unable to load any stock software or updated file to the ECU. Apparently it is just unresponsive.
The part # to the unresponsive ECU in the car is different from what part # my VIN # suggests the car to have, so maybe that could be a reason it is unresponsive to the car. I have the properly corresponding part # on its way, but it was from another vehicle. It is in perfect working order but I understand there can be complications if the unit is from another vehicle. Considering it is now the correct part # for the car and it will be properly programmed to my VIN, will the chance for future complications be too high?
I wouldn't think so, but I would like to hear your opinions on it because most of the comments above seem to have knowledge on the matter! Appreciate the help guys!
The shop told me that they were unable to load any stock software or updated file to the ECU. Apparently it is just unresponsive.
The part # to the unresponsive ECU in the car is different from what part # my VIN # suggests the car to have, so maybe that could be a reason it is unresponsive to the car. I have the properly corresponding part # on its way, but it was from another vehicle. It is in perfect working order but I understand there can be complications if the unit is from another vehicle. Considering it is now the correct part # for the car and it will be properly programmed to my VIN, will the chance for future complications be too high?
I wouldn't think so, but I would like to hear your opinions on it because most of the comments above seem to have knowledge on the matter! Appreciate the help guys!
There is one puzzling thing though, why did your car come with the wrong ECU?
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 56
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From: San Diego, CA
W211 E55 AMG
Then like everyone here has probably insinuated, you map upload was incomplete! Your ECU is just fine, you corrupted it when you tried loading the modified map. I bet you were using the cable connected to a laptop and not the Genius (not that either is better, it is just easier to f-up with the whole laptop cable part with associated drivers etc etc than with the Genius, I have both).
There is one puzzling thing though, why did your car come with the wrong ECU?
There is one puzzling thing though, why did your car come with the wrong ECU?
My only guess is that somehow the wrong part # computer was installed before my ownership. I really have no clue.
