Engine ECU Cloning by Post UK

Your car's engine ECU has failed, but the data inside it — immobiliser, VIN, coding and adaptations — is usually still readable. We read your original unit on the bench and write that data into a matching used or replacement ECU, so in most cases it fits and starts without dealer programming.

from £52.95Free tracked return postage to a UK address is included in the price. Pay now or when the work is done — full refund if we can’t do it.

Pay now or afterfull refund if we can't do it
1–3 working daystypical turnaround from arrival
90-day warrantyon our workmanship
Free tracked returnanywhere in the UK
Original data backed up firstthe original is read in full before any work

Get a quote WhatsApp us

Get a quote

Send the part number and a label photo — we reply with a written quote, usually the same working day. Nothing to pay now.

Name *

Phone

Vehicle (make, model, year)

Registration (optional)

Part number on the label

Service

Do you have a donor unit?

Fault / notes *

Optional — if I book: I ask you to start the work within the 14-day cancellation period. I understand that if I cancel before it is finished I pay for the work already done, and that once the work has been fully performed I lose my right to cancel (terms, section 7). You can also confirm this when you reply to our quote.

Label photo: pressing Send opens WhatsApp with your details filled in. Please send a clear photo of the module label in the same chat.

Nothing is sent until you press send in WhatsApp. We use your details only to reply (privacy notice). No WhatsApp? Call 07375 917301.

Find your module (268 services)

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What it is

ECU cloning (also called ECU data transfer) copies the complete memory of your original engine control unit — internal flash, EEPROM and any external memory chip the unit uses — into a donor ECU with the same hardware and software. The donor then behaves as your original. We check both units match before writing anything, and read back the written data to confirm it is identical to your original.

Typical symptoms

No start or no crank after an ECU replacement with a used unit
Immobiliser light flashing / 'immobiliser active' with a replacement ECU
ECU water damage or burnt board — donor needed
No communication with the ECU (U0100 in other modules, no diagnostics)
Internal ECU fault codes such as P0600–P0606 or P060x processor faults
Swapping to a known-good second-hand ECU

What to send

Your original ECU (even if it is faulty — the data is what matters)
The donor ECU, with exactly the same part number and hardware number as the original
A note with your name, phone, registration and the job reference we give you
Do not send wiring looms, brackets or keys unless we ask

How it works

Send us a photo of the label — use the quote form or WhatsApp. We check the part number and send you a written quote: the price and what to send.
Book and post — reply to the quote to book (or pay now on the service page), then post your module(s) (for a clone: your original and a donor with the same part number) as shown in How to post your module. Drop-off in Newport (TF10) by appointment.
Bench read and assessment — we read and back up the original first. If the job can't be done, we tell you and send your module(s) back with no charge for the work.
We do the job — and verify the result on the bench.
You pay — if you haven't paid up front, we send you a secure card / PayPal payment link once the work is done (or you can use our Pay page). If the job can't be done, an up-front payment is refunded in full.
Tracked return — as soon as it's paid, your module goes back by tracked post.

Not included

Immobiliser removal ('immo off') — we do not offer it
Remapping or tuning
Fitting to the car
Repairs to the car's wiring or other modules
Supplying a donor unit (unless agreed separately)

Makes covered

Alfa Romeo, Aprilia, Audi, Benelli, Bentley, BMW, BMW Motorrad, Bobcat, Can-Am, Case New Holland, Caterpillar, CF Moto, Challenger, Chevrolet, Chrysler, Citroën, Claas, Cummins, Dacia, DAF, Deutz, DS, Ducati, Fendt, Fiat, Ford, Geely, Genesis, Gilera, Hino, Honda, Hyundai, Indian, Isuzu, Iveco, Jaguar, JCB, Jeep, John Deere, Kawasaki, Kia, Komatsu, KTM, Kubota, Lamborghini, Land Rover, Lexus, Lynk & Co, Mack, MAN, Massey Ferguson, Mazda, Mercedes-Benz, MG, MINI, Mitsubishi, Moto Guzzi, MV Agusta, New Holland, Nissan, Peugeot, Piaggio, Polaris, Porsche, Renault, Royal Enfield, Saab, Scania, Sea-Doo, SEAT, Shacman, Skoda, Smart, Subaru, Suzuki, Toyota, Valtra, Vauxhall, Volvo, Volvo Penta, VW, XCMG, Yamaha, Yanmar, Zontes — only the part numbers listed. Always confirm by label photo.

FAQ

Will the car start after fitting the cloned ECU?

In most cases, yes: a correct clone of a matching unit is plug and play. Some platforms need a short relearn (throttle, idle or injector values) after fitting, and we tell you before you post if yours does.

Does the donor have to be the same part number?

Yes. The donor must match the original's part number and hardware. Software can sometimes differ, but we confirm by part number before you post.

What if my original ECU can't be read?

If the chip can't be read we tell you and return your units, with no charge for the work. Where the fault is on the board (power supply, a burnt driver) we may be able to repair it first — we'll quote that separately.