Hi again .....................
OK, so now we have the Trans and Diff combos sussed out perfectly, what will work with what, and what is easiest and what is harder, what's the next step into the MB Electronics to categorically prove what I'm certain I already know ??
Well, lets make absolutely certain, belt and braces etc etc, that once I've done all the graft, installed a V8, wired and plumbed it in, I can just insert my V6 Cars Key, turn the Key and she will fire up, re born as a V8
A spare ME2.8 V8 M113 ECU is winging it's way to me as we speak, along with some new software and USB programmer that wasn't available when I did the last Immo Clone, (which was on a like for like V8 S Class ECU change job).
When the new gear and ECU gets here, first up is install the software on one of the spare Dells and get it up and running with BIOS and RAM upgrades. I'll build a Win 7 Stand alone machine this Sunday.
After that, I shall lock the doors one Saturday, with my V6 R170 "in da building" and remove its V6 ECU.
New gear, new software, new procedure ........................
Open up the V6 ECU and solder a teeny wire on the boot leg.
Plug in power, earths and com line to the ECU, and connect the boot wire, plug the programmer into the Laptop and take a copy dump from the ECU, separate the 3 files and save EEPROM file.
Carefully remove the soldered boot wire, and put the V6 ECU back together, plug ECU back into Car, make certain it starts and runs OK. Remove V6 ECU and place it carefully somewhere else.
Now strip the V8 ECU, repeat soldering boot wire, connections etc and plug it into the programmer and laptop.
Take another .bin Dump from V8 ECU separate and save it..........
Make copies of the V6 and V8 EEPROM Files, now I have 4 files, V6 Original, V6 # 2, plus V8 Original and V8 # 2 !!
Open V6 # 2, copy the lines of immo code and overwrite the same lines in the V8 # 2 file, now over write the modified V8 # 2 File into the V8 ECU EEPROM.
Take another dump from V8 ECU, save it, and run compare, it should now contain the V6 Immo Data, but it will still be a V8 ECU in terms of it's programming and version coding !!
Unsolder boot wire, disconnect programmer and reassemble ECU.
Plug ECU into my V6 Car, plug in SDS, switch on Ignition and in SDS Check the Drive Authorisation is enabled
If it is, belt and braces mk II, remove SLK Key, stick it well away from Ignition switch, and apply power to the Ign Live Circuit without key, Drive Auth should now show as not enabled as it's not seeing the Key
Remove ECU, keep it safe until winter when I bolt the V8 in
The proof of the pudding is now under it's crust
Put V6 ECU back, start the Car all is well.
Jobs a good 'un, go to pub to bore everyone to tears about my new software, Mercedes immobilisers etc etc and celebrate
What could possibly go wrong
Nah, seriously, I am now certain this will work fine, I wouldn't risk it until Winter if I wasn't
Watch this space .....................