Used Citroen C4 ECU

All used Citroen C4 ECU listed on Breakeryard.com are tested, original (OEM) manufacturer parts and come with a 14 day money back guarantee. Breakeryard.com listed used car parts for Citroen C4 are from premium breaker yards from across the UK, saving you up to 80% compared to main dealer prices.

About ECU

What is the ECU/what does it do?

The term ECU (Electronic Control Unit) is a universal name given to a variety of electronic control systems found in a car. Collectively they make up the car's computer or brain which controls and regulates key components of the vehicle.

Getting into the details of the ECU

ECU’s are located within the dashboard or engine bay. It is often possible to ‘read’ or interrogate your car's various ECU’s using a laptop computer with relevant software and cable or a dedicated reader via a connection port which is usually located in the dashboard. This method is used by mechanics for diagnosis of certain vehicle faults.

An ECU controls or governs aspects of a car's systems including, but not limited to, the engine, ABS, suspension, automatic gearbox and power steering.

What if something goes wrong with the ECU?

Like any electronic component an ECU can fail for a number of reasons including short circuits, dry solder joints, water damage or age. Diagnosis is generally much easier with the correct reader which can be used to obtain error codes from ECU.

Citroen trivia

  • If you went into a Citroën showroom in the 20s, there's a good chance that you would have been given a letter that was personally handwritten by Andre Citroën himself, proclaiming the benefits of the car models. This one act of marketing genius is credited with being responsible for thousands of closed sales.
  • In 2019, the Citroën DS was voted in the UK as the 'coolest car ever', with writers and marketers calling it the Brigitte Bardot of cars. In second place was the E-Type Jag…
  • French president Charles de Gaulle's life was saved by Citroën not once, but twice. In 1961 a Citroën DS managed to stay intact despite there being a bomb made of plastic explosive, dynamite, oil, and nails. It even managed to drive away from the scene. In 1962, de Gaulle was attacked again, this time with machine guns, but the Citroën again managed to get away from the would-be assassins.
  • John Lennon appeared in an advert for the Citroën DS3, many years after his death. The advert caused quite a lot of public criticism for Yoko Ono, who agreed to the musician's likeness being used.
  • Thanks to Citroën, the French driver Sebastien Loeb is the single most successful driver in the entire history of the World Rallying Championship. Nine consecutive driver's titles were won by Loeb in the time between 2004 and 2012, driving cars such as the Xsara, the C4, and the DS3.