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Dacia · ECU / TCU cloning

EMS3181
ECU Cloning

Faulty EMS3181? We copy everything from your original onto an identical donor unit, including the immobiliser data, so the donor plugs in and works with your existing keys. No dealer coding, no new keys, no waiting for a main-dealer part. 1-to-staff clone, read boot.

The type EMS3181 is printed on the label next to the maker’s name. Not sure? Send us a photo of the label.

1-to-staff clone
£250–£350

Per clone, with the donor supplied by you. Pay £250 now; the top of the range only applies if the unit needs extra work, and we tell you first. Free Royal Mail Tracked 48 return.

Post it in — order online Book the workshop

Post both units (original + donor) with your reference, or book a slot and we remove, clone and refit at Ammanford.

How it works

  1. Find a donor. A used EMS3181 with the same hardware and software number as yours. We can advise if you are unsure.
  2. Order online. Pay securely by card, Apple Pay, Google Pay or Klarna and print the packing slip.
  3. Post both units to us (or drop them in), marked which one is the original. A tracked service is best.
  4. Cloned and tested the day they arrive, then posted back tracked. Fit the donor and drive.

Good to know

Everything copied

Software, calibration and immobiliser data go across, so the donor behaves exactly like your original with your existing keys.

Original must be readable

Most failures are in the drivers or power stages while the memory is intact. If the original cannot be read at all we contact you before doing anything else.

Garages & bodyshops

Send both units mid-repair and they are back before the car is. Call 01792 732 062 for trade volumes.

Different unit?

Check another ECU / TCU number

Type the type from the label (for example EDC17C46, SID208, DQ250) or a part number printed on it. Spaces and dots don’t matter.

See every Dacia unit we clone on the Dacia cloning page, or the full list.

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