Tested Used ECUs & Modules – Choose Your Make
Current stock is being verified. Send the original ECU label and your vehicle details for availability and compatibility. We confirm the exact unit and test record before payment.
Original used engine ECUs and control modules, bench-tested in our lab before sale. Every listing shows the real part number, hardware and software numbers, what was tested and photos of the actual unit – not a stock picture. On request we clone the unit to your car, so it starts with your own immobiliser and vehicle data.
Choose your make
No unit listed for your car yet? Send us your part number – we source tested units and clone them to your car.
Can't see your make or part number? Send us the number from your ECU label – we check our stock and the units we can prepare for you.
Why buy a tested ECU from a lab?
A used ECU from a breaker usually will not start your car: it carries another car's immobiliser data, and the software version may not match yours. We read and check each unit, list the exact software number, and prepare it for your car. You know what you are buying before you fit it.
Tested, documented, guaranteed
Every unit gets a power-up and communication test, identification read, fault memory check and full software read. The results are written on the listing, and each unit carries a 12-month warranty on the module and our work.
Not sure the ECU is the problem?
Many "ECU faults" are wiring, sensors or power supply. Book diagnostics, or send us your own ECU for a bench test (£45) – often it can be repaired, which is cheaper than replacing it.
Local service near Mansfield – lab work by post
Mobile appointments in Mansfield, Nottingham and Nottinghamshire by arrangement. Supported electronic modules can be posted after booking. Parts drop-off by prior arrangement. Contact us before visiting.
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Request a quote
Tell us about the vehicle and the problem. We confirm compatibility and the price before any work is booked.
- Reply from a technician, not a call centre
- No obligation – quote first
- UK-wide by post, local work in Mansfield & Nottingham
Prefer not to post it yourself? Ask us and we quote a collection from your home or workshop for your postcode.
Popular repairs
Module repairs we carry out by post, with bench testing and a written report.
