Professional Citroen ECU Repair for All Major Vehicle Systems

Commonly Failing Citroen ECUs

ABS Pump which commonly fails with brake pedal going to the floor while driving.

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ATE ABS pump which commonly fails with brakes binding / calipers sticking.

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At ECU Fix, we specialise in expert Citroen ECU repair services for a wide range of models and systems. Whether you’re facing faults with your engine ECU, ABS pump, instrument cluster, or body control module, our team provides fast, affordable repairs that restore function without the need for costly replacements.

If your unit is listed in our online repair catalogue, we’ll test it within 24 hours—or your repair is free. If not listed, we can usually still help—just send us your part number or vehicle details and we’ll confirm compatibility.

Every completed repair is backed by a lifetime warranty, giving you long-term confidence and reliability.

Our Citroen ECU Repair Services

Citroen Engine ECU Repair

If your Citroen struggles to start, misfires, or runs erratically, the engine ECU may be the cause. We repair:

  • No-start or intermittent starting
  • Misfiring or loss of power
  • Diagnostic communication failure
  • Corrupt software or internal circuit damage

Our service restores original ECU function and avoids costly replacements or coding.

Citroen ABS Pump Repair

ABS faults can reduce braking safety and affect MOT results. We repair:

  • ABS or ESP warning lights
  • Brake pressure sensor failure
  • Inactive pump motor
  • Loss of communication with diagnostic tools

We support Bosch, ATE, and TRW ABS units fitted across the Citroen range.

Citroen Body Control Module (BCM) Repair

The body control module manages a variety of systems including lighting, central locking, and electric windows. We fix:

  • Central locking or window issues
  • Electrical malfunctions and battery drain
  • Immobiliser problems and no-start faults
  • Internal water damage or burned components

Repairing your BCM can resolve multiple system faults in one go.

Citroen Instrument Cluster Repair

A faulty cluster affects visibility, safety, and diagnostics. We repair:

  • Dead, flickering, or pixelated displays
  • Inaccurate or frozen gauges
  • Faulty warning lights
  • Backlight or LED failures

All clusters are tested and returned ready to refit—no coding typically required.

Citroen Gearbox ECU & Mechatronics Repair

Transmission faults like jerky shifting or limp mode may point to a faulty TCU or mechatronic unit. We repair:

  • Gearbox stuck in one gear
  • Delayed or harsh shifts
  • No drive or reverse engagement
  • Communication errors with the gearbox ECU

Citroen Airbag Control Module Repair

If your airbag or SRS light is on, your airbag ECU could be the problem. We repair:

  • Crash data storage after an accident
  • Communication faults
  • Internal failure or short circuits
  • Water-damaged units

Our repairs often eliminate the need for new parts or reprogramming.

Citroen Electric Power Steering ECU Repair

Power steering faults reduce driveability and safety. We fix:

  • Loss of steering assist
  • EPS warning light or fault codes
  • Heavy or unresponsive steering
  • Internal motor or sensor faults

All EPS units are tested in-house and returned with a lifetime warranty.

Why Choose ECU Fix for Citroen ECU Repair?

  • 24-Hour Testing on catalogue-listed units – or the repair is free
  • Lifetime Warranty on every completed repair
  • UK-Wide Courier Collection & Return available
  • Repairs completed in-house by trained technicians
  • No Fix, No Fee – only pay collection & return shipping if unrepaired

How It Works

1. Book Your Repair

Get started in one of three ways:

2. Send or Request Collection

You can post your unit directly to us or request a secure UK-wide courier pickup.

3. We Test and Repair

  • If it’s in our catalogue, we test within 24 hours—or your repair is free
  • If it’s not listed, we’ll confirm repair options after inspection
  • If the unit can’t be repaired, you only pay collection & return shipping—no hidden fees

4. Receive and Refit

We return your fully repaired ECU or control unit, tested and backed by our lifetime warranty.

GET IN TOUCH

Book your ECU repair today!

Contact us

FAQs

How much does it cost to fix an ECU?

At ECU Fix, ECU repairs start from £200. The final cost depends on the specific fault and the type of ECU (e.g. engine, ABS, gearbox, etc.). We offer 24-hour testing on catalogue units—or your repair is free. Every successful repair is backed by a lifetime warranty, giving you long-term peace of mind.

Can a damaged ECU be repaired?

Yes, most damaged ECUs can be professionally repaired. Our technicians can resolve issues such as corrupted data, faulty sensors, power loss, and communication failures. Instead of replacing the unit, we restore it to full function using advanced diagnostics and in-house testing—saving you time and money.

Is it worth fixing an ECU?

Absolutely. Repairing an ECU is typically much cheaper and faster than replacing it. New ECUs can cost several hundred pounds and may require dealer programming. Our repair service avoids that cost and hassle. You also benefit from a no fix, no fee policy and lifetime warranty on all successful repairs.

What is the ECU problem with the Citroen C3?

One of the most common ECU-related issues in the Citroen C3 involves the engine ECU (commonly a Bosch ME7.4.4 or Valeo J34). Known problems include:

  • Intermittent starting
  • Random engine cut-outs
  • Faulty injector driver circuits
  • No communication with diagnostics

At ECU Fix, we have extensive experience diagnosing and repairing these faults. In most cases, your Citroen C3 ECU can be repaired within 24 hours if it’s in our catalogue—or the repair is free.