Repairs
Engine control unit repair
We open it up, find the faulty component and test it on the bench before sending it back. Before any work we tell you what is wrong and what it costs.
- Control units
- Engine and gearbox
- Vehicles
- Cars, trucks, agricultural, earth-moving
- Quote
- After the bench diagnosis
Common faults
What is the symptom?
Pick what you see on the vehicle: we tell you the most common cause and what to check before removing it, so you don’t ship a healthy unit.
Likely cause
It is often the unit’s internal power supply or a burnt driver.
Before shipping it, check
- The battery: below 12 V at rest many units won’t power up.
- The unit’s main fuses and relays.
- Engine and chassis grounds: clean and tight.
If everything checks out, the fault is probably in the unit.
Request the repairWhat every repair includes
Not just the replaced component: the unit comes back tested and ready to install.
Bench diagnosis
We open it up and test it on the bench to find the faulty component.
Quote first
We tell you what is wrong and what it costs. Without your yes we touch nothing.
Repair
We replace faulty components and restore tracks and solder joints.
Testing
We test them on a test bench and, where available, via a simulator with a vehicle environment.
Original data
We work to keep the original data: it goes back in the vehicle without reprogramming.
Warranty
Every repair is covered by a warranty.
Repair, remanufactured or new?
After the diagnosis we recommend the most sensible route. Here is how the three options compare.
When the fault can be repaired
Repair yours
- You keep your own unit, with its data
- No programming when fitting
- Usually the cheapest option
When a repair is not worth it
A remanufactured one
- Ready to ship, no waiting for a diagnosis
- Bench-tested like our repairs
- On request we transfer the data from yours
When you need a new part
A new one
- Factory-new part
- Needs coding or programming to the vehicle
- On request we transfer the data from yours
We handle Bosch, Delphi, Continental, Denso, Marelli and Siemens VDO units. If yours is not among them, ask us: we can often work on it anyway.
How to ship it
- 1
Put it in an antistatic bag or, if you don’t have one, a sealed plastic bag.
- 2
Wrap it in bubble wrap and use a rigid box: no padded envelopes.
- 3
Include a sheet with your name, phone, vehicle and the fault.
- 4
Keep the unit’s label clean and readable.
Don’t send
- Brackets and mounts
- Harnesses and connectors
- Keys and immobilisers, unless we ask for them
Frequently asked questions
Ready to send it in?
Fill in the request: we will reply with the next steps.