ECU repair: experts in engine control unit refurbishment
Free diagnosis, repair or cloning of your engine ECU for all makes. Returned within 5 business days.
ECU repair or cloning: which solution for your fault?
When an engine ECU develops a fault, the first challenge is to distinguish a hardware failure from a simple communication issue. The engine management unit (ECU) drives the injection, turbo pressure and ignition, and monitors all of the sensors. A proper diagnosis makes it possible to intervene at the right level, without needlessly replacing the module.
ECU repair: restoring your original control unit
ECU repair consists of identifying and replacing the faulty electronic components directly on your original unit. Burnt-out components, software corruption, power-supply failure or damaged output stages: our workshop, specialized in electronic repair, has the bench-testing equipment needed to address these faults.
This approach preserves your vehicle's original configuration: the engine map, immobilizer codes and vehicle-specific parameters remain intact. Programming may be required after the work when certain memory areas have been affected.
ECU cloning: transferring your data to a healthy unit
If refurbishment is not possible, engine ECU cloning is a reliable alternative. We extract all of the data (engine map, immobilizer, configurations) and transfer it to a compatible unit. Your vehicle returns to stable operation, without a trip to the dealership.
See our engine ECU cloning service for more details about this procedure.
On Renault vehicles, the immobilizer and cabin electronics are handled by a dedicated unit: in the event of a failure, see our Renault UCH repair page.
When should you have your ECU repaired?
Check engine light on and persistent fault codes
Fault codes that keep coming back after being cleared can point to an internal failure of the ECU. A thorough diagnosis verifies whether the problem comes from the unit itself.
Vehicle that no longer starts for no apparent reason
Limp mode, intermittent starting or a complete refusal to start: when the sensors return inconsistent values, the fault may lie with the engine control unit rather than the injectors or the turbo.
Replacement quote too high at the dealership
A brand-new ECU replacement generally costs between 800 and 1,500 €. Choosing repair over replacement cuts the bill and preserves original compatibility, with no compromise on reliability.
ECU damaged after a failed reprogramming
A poorly executed engine reprogramming can corrupt the memory or damage output stages. Our repair service can restore the unit without writing off the entire module.
Why choose Incarline to repair your ECU?
Free diagnosis
Complete analysis of your ECU before any work. Clear, no-obligation quote.
All makes
Bosch, Siemens, Delphi, Denso, Continental… We work on several generations of control units.
Returned within 5 days
Diagnosis, repair and validation tests included. Updated timeframe in case of complex work.
Warranty
Every repaired or cloned ECU is bench-tested before being returned. The work is guaranteed.
How does an ECU repair work at Incarline?
You send us your ECU
Send us your unit in a secure parcel. Protect the module properly and include the ECU reference along with your vehicle's make, model and engine. This information speeds up the analysis and prevents routing errors.
Complete diagnosis of your ECU
We read out the data and check the power supplies, grounds and input signals. Bench testing lets us reproduce the fault conditions and prioritize the defects. You receive a detailed quote.
Repair or cloning depending on your situation
Depending on the diagnosis, we either repair the faulty components or clone your data onto a compatible donor ECU. Programming is carried out where necessary to restore full operation.
Your ECU is returned repaired and tested
Before dispatch, your ECU goes through a series of validation tests: real operating checks, network communication checks and confirmation that no fault codes remain. You receive it ready to be refitted.
ECU brands we support for repair
We work on many brands and several generations of engine management. Analyzing the data, the power electronics and the management strategies allows a consistent repair, whatever the manufacturer.
And many other references. If you are unsure about compatibility, send us your ECU reference for an initial assessment.
Frequently asked questions about ECU repair
How much does an ECU repair cost?
The price of an ECU repair depends on the initial diagnosis and the type of work required. Repairing faulty electronic components does not cost the same as a full clone onto a donor ECU. At Incarline, the diagnosis is free and without obligation: you receive a clear quote before we touch anything. By way of comparison, a brand-new ECU replacement at a dealership generally runs between 800 and 1,500 € depending on the model. In most cases, our repair service delivers substantial savings, with no compromise on the quality or reliability of your vehicle.
Can my ECU be repaired?
The vast majority of engine ECUs can be repaired or cloned, across all makes and models. The most common failures we handle — burnt-out electronic components, software corruption, failure after a botched reprogramming, ECU damaged by a power surge — are situations our technicians encounter and resolve every day. Only a thorough diagnosis can confirm with certainty whether the work is feasible. If in doubt, send us your ECU reference or call us directly: we will give you an initial assessment, without obligation, before you ship anything.
Is the ECU repair guaranteed?
Yes, every ECU repaired or cloned by Incarline leaves with a warranty covering the work carried out. Before returning your ECU, we systematically run it through a series of validation tests to confirm it works properly. This warranty covers all defects directly related to the work performed in our workshop. Should a problem appear after delivery, our technical team is available to analyze the situation and act as quickly as possible.
How long does an ECU repair take?
In the vast majority of cases, your ECU is repaired and shipped back within 3 to 5 business days of arriving at our workshop. This timeframe includes the full diagnosis, the work itself and the validation tests before dispatch. If your fault requires a specific part or more complex handling, we let you know immediately with an updated timeframe. For urgent situations, do not hesitate to contact us directly by phone.
Faulty ECU?
Send us your ECU for a free, no-obligation diagnosis. Clear quote, returned within 5 business days.