As title, has anybody had any experience in swapping a dead ECU for a 2nd hand replacement? Car is hatch 2014 VRS TDI with DSG, replacement ECU is from an 2014 Elegance estate 2.0 TDI with DSG. 

 

Mine is fried and has been unable to test/repair by an ECU specialist so I'm stuck with needing to replace it. Had a moment of madness on the simplest of tasks, changing the battery, and fumbled the ratchet so the positive terminal connected with the ECU case...

 

I'm aware of needing to get the key/dash/immobiliser info from the car onto the new ECU, and recode it to the build of the car but that's about it, I have access to VCDS but nothing else.

Oh sh33t. Have you a saved full scan with vcds for the ecu scan. That said it's dsg to dsg. But my first yhjng would be to match long coding if you could.

 

I haven't done it b4, so await further replies but perhaps update response if you do have a scan. 

@CactusjackDid the ECU expert not give you advice or have ECU's that they refurb / check?

Or know a source of the correct ones.

I have a scan saved thankfully!

 

The ECU place wasn't able to communicate with the unit on the test rig or by soldering in directly, so no cloning or transfer possible, it's effectively a paperweight now. They attempt the EDC17 ECU on a case by case basis as they can't guarantee its repairable, and in my case it's not... I am however inclined to get a second opinion just in case someone somewhere can work some magic on it, even though the place I took it was a state of the art looking, reputable company!

Forget trying to copy any data from the old one.

Good thing about newer VW cars is all data is held in the mothership.

 

It should be as straight forward as fitting a matching ECU part number (or a superseding one) and running the ODIS routine for ECU replacement. You will need someone with a genuine VAS tool and a geko security account to allow all this to happen.

 

The car will collect all the data from the vw mothership, code the new ECU and then will run the immobiliser service routine - note - you will need ALL keys present else they will not work after this.

Thanks for your input, seems like that is my best course of action given the situation, hopefully I can source someone local to Nottingham then who's mobile as I can't shift the car for now.