ECU Immobiliser Service

*You must either send an ECU or buy one from our shop for this service*

This service is our most popular engine conversion product.

We take your ECU (or one that you purchase from us) and fit an emulator to keep the ECU immobiliser happy. This means that you can wire up your conversion with fewer wires, and also means you don’t have to use a BMW key.

This can be fitted to any DDE 4, DDE 5 or DDE 6 ECUs. Most ECUs have a part number that starts with DDE 7… Do not let you confuse you, the 7 is just the part number and is not actually stating the generation type.

Essentially this encompasses all M57 engine (including the twin turbo variants) and the M47 150hp engine.

Very occasionally, the ECU can lose sync with the emulator. This is most common when you first fit the engine when there may be some small wiring errors. It is therefore recommended that you read and follow our wiring guides and also furnish yourself with suitable diagnostics so that you can resync it should you have an issue. Information on how to resync the emulator can be found on our diagnostics page.

If you are sending an ECU to us for this service, you must include a copy of your invoice with the parcel. We receive many ECUs a week and without a copy of your invoice it would likely cause massive delays to your order.

Please allow up to 7 days for this work to be completed, however we will do our best to make it less. 24 hour turnaround can sometimes be provided by prior negotiation.