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Mercedes/Bosch ME2.8 ECU EEPROM explained

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Old Oct 10, 2023 | 05:42 PM
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2023 E450 AT, 1996 S420, (sold) 2004 CLK320 Convertible (v8, 6 speed)
Mercedes/Bosch ME2.8 ECU EEPROM explained

The information is provided for general informational and educational purposes only! Use this information at Your Own Risk!


You can ask questions in this thread, but here is doc (still in progress) where I'm trying to share things I know about ME2.8 EEPROM, just to be these things I figured out on my own so there might be some mistakes.

https://docs.google.com/document/d/e...AbbgjNS_xk/pub
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Old Oct 10, 2023 | 05:43 PM
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2023 E450 AT, 1996 S420, (sold) 2004 CLK320 Convertible (v8, 6 speed)
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Old Oct 17, 2023 | 01:23 PM
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2023 E450 AT, 1996 S420, (sold) 2004 CLK320 Convertible (v8, 6 speed)
Originally Posted by giorgionat
Thanks for the advice, with a bit of luck I will receive the k-tag this week. I have a dedicated laptop for this tasks with no personal info in it, definitely will use it or this.

I have read that it is not recommended to use the k-tag's own power supply to power the ECU, some people recommend powering the ECU with a professional power supply (I have one). Have you experienced any problems with this?

If it's ok with you, for future doubts I can post them in the post dedicated to the documentation and this way it can serve as a complement for other users.

Thank you for your quick response and advice.
I've never had issues with powering an ECU from K-TAG though, but it's a good idea to use a lab power supply.
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Old Nov 26, 2023 | 03:51 PM
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w209 clk500
Originally Posted by dzmitry
I've never had issues with powering an ECU from K-TAG though, but it's a good idea to use a lab power supply.
Hi, it has been an odyssey getting the k-tag at home between lost packages and faulty units.
I finally got a working unit and was able to read the ecu I bought on eBay. I took a look at the memory addresses you refer to in the document and it was easy to identify the addresses to modify .

I still need to read the original ecu, make the modification and load it into the ecu purchased on ebay. Before this I want to put the engine (it is out of the car right now) to make sure that everything is correct and then proceed to load the modifications.

I have access to WIS/EPC but I don't know the VIN of any manual model that mounts this ecu so I'm a bit lost as to the wiring of the clutch pedal pressure sensor. Could you help me with this?

Thanks so much, getting progress on this is exciting.

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Old Dec 3, 2023 | 11:52 PM
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Hey, finally back from holidays :-D
I'm glad that you are getting there!
No worries I got you covered
2004 C320 Manual - WDBRF64J43F435258 (I've been using this car for parts search before swaps)
Reverse light - Front SAM Connector 10 pin 6
Clutch switch - Front SAM Connector 10 pin 9
The connector is here

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