zcct04

My ME (ECU?) appears to be toast. Two dealers have looked at it and both are saying that replacement is the only option. Both have quoted almost $2k to replace it. *$#%$#!

Are used MEs available? If yes, is it a drop-in or does it require dealership support and Star tools?

Does it have to be from a C63 or will any C-class work

Does it have to be from the same model year?

m a x i m u s

I think someone on here has a used one, but I can't remember who right now, I just remember seeing the posts.

BLKROKT

I think both marioflex and Merc63 have replaced theirs. Maybe Mr747 also.

AMG3.2

Definitely has to be from a C63. More so, running the correct software version for your car. Also, it's have to be coded, most likey via STAR, to your car's vin.

So no, you cannot go to ebay and purchase a w204 ECU and call it a day.

mr747

Buy a used computer and send your current one with the used one to Weistec for cloning

Costs around 500 I think

Jasonoff

AFAIK the dealer can do SCN coding using DAS with their SDconnect tool as well. It either plugs right into the ECU or through the OBDII port.

abcut973

As mr747 mentioned you can clone your OEM ECU. The only company that i know able to do it is weistec. You cannot jut plug and play any random used ECU as each one is VIN coded to their respective car.
My question is if your OEM is toast how will the cloning go? Because as the word says you duplicate from a master file. If the master is dead what will you copy?

ricecooker713

http://www.ebay.com/itm/Mercedes-ME2...5WWzvE&vxp=mtr

People offer these services

jrcart

Yes, you can use a used ECU as long as it corresponds to your specific make and model. You will need to take it to your dealership to have them sync it with your specific vehicle.

Savage-wp

Using the correct tools and software you can still pull the file from a dead ECU.

agentMurdoc

I hope you don't have the same experience about an MB tech telling me I needed a new ECU. MB master technician told me I needed to buy a new ECU for my old R129 SL600. I bought a brand new one from the dealer... didn't fix the problem. Turned out to be a coil pack. I think it was a 1200 mistake or something like that, and that was with my dealer discount lol. This was like 8 or 10 years ago though.

ENV²

How do you guys end up frying the ECU? Too much flashing back and forth from stock to tuned?

PaulE550

Good question.

roadtalontsi

dealers cant change vin's on used m.e.'s. They can only reflash/code back to stock, be it that the vin already matches the car. Only some aftermarket shops can re-write the vin. Typically they like to have a working ecu to copy all the information off of too. You'll have to call around. Benz did this intentionally to avoid car theft and illegal part outs. Basically the car is a paper weight without a vin specific m.e., vgs (trans module), eis, shifter, steering lock. Theres more parts that are vin coded but those are your primaries to get it moving.

goalie_k

http://mesablackworks.com/Mercedes-e...6?search=me9.7

AMG3.2

I'm sure Eurocharged could do this with their eyes closed. Anyone techy enough that knows their way around an ECU can bypass the start-up, or at least they should be able to.

In the E46 world, swapping in new ECU's is extremely common since the later model years, and especially the CSL ECU variants allow for different capabilities to be added.

It's so common that I personally changed ECU vins etc. I've even used ECU's coded to other cars by bypassing the startup "lock" in the binary.

We just need some computer science folks around here to guide us...