ECU Help
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Joined: Dec 2009
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e55
ECU Help
I have ECU problem, and i have Mb Star Diagnostic (Xentry) How can i take codes from old ECU and program on New one.However, i used to have 99 MB C230 kompressor, i had Ecu problem on that car and i call my Mercedes technician and he did same way , he took a codes from old ECU and reprogram on new one( use from another car). I just need instructions on Xentry how to do that, help me please . Thanks you
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Joined: Jan 2004
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Question first. Is this a brand new ECU purchased from MB or a used one you snagged off the net? 100% you can not use a used ECU from another car as they are "mated" to the VIN# when you first program them.
I have never heard of this being done honestly but I can check on my Star and see what I find out.
This is possible on the Tranny TCU but never heard of this on the ECU.
I have never heard of this being done honestly but I can check on my Star and see what I find out.
This is possible on the Tranny TCU but never heard of this on the ECU.
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 65
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e55
Question first. Is this a brand new ECU purchased from MB or a used one you snagged off the net? 100% you can not use a used ECU from another car as they are "mated" to the VIN# when you first program them.
I have never heard of this being done honestly but I can check on my Star and see what I find out.
This is possible on the Tranny TCU but never heard of this on the ECU.
I have never heard of this being done honestly but I can check on my Star and see what I find out.
This is possible on the Tranny TCU but never heard of this on the ECU.
Last edited by e551986; Feb 27, 2011 at 06:24 PM.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
WOW, you may be onto something huge here!
I have a spare ECU and I am gonna try messing around with it and see what happens/
Don't understand how all the tuners could be wrong all these years.
I have a spare ECU and I am gonna try messing around with it and see what happens/
Don't understand how all the tuners could be wrong all these years.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Okay, well here are the steps to do it....again, if it's actually possible.
From Cory at Kleemann on down, all have said that once an ECU is mated to a car, it can not be used with any other car so this will be interesting
In your Star click the screens in this sequence.
Control Units/ Control Unit Groups/ Drive/ ME SFI Motor Electronics/ Do You Want To Overwrite..YES/ Initial Setup/ Initial Startup with Automatic takeover of settings of previous control unit/ Offline (No Network Star Diagnosis unit).....screens after this are self explanatory.
Let me know if you get this to work. Lot of guys would love to have a spare ECU and there are ton of junkers on the market that we don't use.
From Cory at Kleemann on down, all have said that once an ECU is mated to a car, it can not be used with any other car so this will be interesting
In your Star click the screens in this sequence.
Control Units/ Control Unit Groups/ Drive/ ME SFI Motor Electronics/ Do You Want To Overwrite..YES/ Initial Setup/ Initial Startup with Automatic takeover of settings of previous control unit/ Offline (No Network Star Diagnosis unit).....screens after this are self explanatory.
Let me know if you get this to work. Lot of guys would love to have a spare ECU and there are ton of junkers on the market that we don't use.
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 65
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e55
Okay, well here are the steps to do it....again, if it's actually possible.
From Cory at Kleemann on down, all have said that once an ECU is mated to a car, it can not be used with any other car so this will be interesting
In your Star click the screens in this sequence.
Control Units/ Control Unit Groups/ Drive/ ME SFI Motor Electronics/ Do You Want To Overwrite..YES/ Initial Setup/ Initial Startup with Automatic takeover of settings of previous control unit/ Offline (No Network Star Diagnosis unit).....screens after this are self explanatory.
Let me know if you get this to work. Lot of guys would love to have a spare ECU and there are ton of junkers on the market that we don't use.
From Cory at Kleemann on down, all have said that once an ECU is mated to a car, it can not be used with any other car so this will be interesting
In your Star click the screens in this sequence.
Control Units/ Control Unit Groups/ Drive/ ME SFI Motor Electronics/ Do You Want To Overwrite..YES/ Initial Setup/ Initial Startup with Automatic takeover of settings of previous control unit/ Offline (No Network Star Diagnosis unit).....screens after this are self explanatory.
Let me know if you get this to work. Lot of guys would love to have a spare ECU and there are ton of junkers on the market that we don't use.
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Joined: May 2008
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From: Chicago, IL
2005 C32 4Matic - That's Not A Typo! :D
They're not joking when they say that once it's been mated to the car, it's locked down. If you have the resources, you can wipe them clean so they think they are a brand new ECU but that equipment is far from cheap and unless you're doing a lot of them, the cost of such hardware is price prohibitive. As for going through the SDS and auto take over of previous settings, that's for a new ECU from Mercedes and is used since the same ECUs are used on a broad range of vehicles. ML500 uses the same ECU as a CLK500 but the two have different programming. It takes the original configuration from the bad ECU and allows you to write it to the new one. Not gonna transfer anything that allows the car to start though as that is not on the same part of the ECU as the other settings. Sorry to be the bearer of bad news.
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Joined: May 2009
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From: Abu Dhabi
C218 CLS63TT PP Edition1, W213 E63S
what i know is that you have to replace a chip from your old ECU to the NEW/Used one you are going to use. and then you connect it to STAr to configure it for the current car. but there is a part that should be changed.
c230, car, changed, cost, e55, ecu, initialstartup, kompressor, mb, mercedes, overwriting, star, start, supermbstarinitialcodingecu, wont
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