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Used Citroen ECU Transmission Control Units

All used Citroen ECU Transmission Control Units listed on Breakeryard.com are tested, original (OEM) manufacturer parts and come with a 14 day money back guarantee. Breakeryard.com list cheap new OES or aftermarket car parts at discounted prices and used OEM car parts up to 80% cheaper than main dealer prices for Citroen from premium breaker yards from across the UK.

About ECU Transmission Control Units

The Citroen ECU transmission control unit is an on-board computer which electronically controls the transmission of the vehicle. TCUs can be separate from, or in this case, attached to the ECU. The Citroen ECU Transmission Control unit contacts sensors that are placed around the vehicle to receive data in order to accurately calculate when to change gears and which gear to use as well as improve fuel economy and drive quality.

These sensors include the vehicle speed sensor, the wheel speed sensor, the throttle position sensor, the turbine speed sensor and the transmission fluid sensor. The TCU also uses data sent from the ECU. This controls and maintains the efficient running of the engine as well as scanning for any abnormalities in its function.

If a Citroen ECU transmission control unit begins to fail, you may notice a loss of power, error message or difficulty in changing gears. This problem can be intermittent at first, and can sometimes be rectified temporarily by turning off your car and turning it back on again after a short while. Ultimately though, any damage to a Citroen ECU transmission control unit will need to be repaired to correct the fault.

Citroen trivia

  • 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.
  • In 1968, Citroën bought control of the Italian car firm Maserati. That purchase led to the design of the Citroën GT, which came with hydro-pneumatic suspension and a V6 engine. It did well in terms of sales, but production of the last version, the DS23 Pallas Electronique, was stopped in 1975 after the '73 oil crisis.
  • Buying Maserati was definitely a mistake for Citroën. The SM model didn't sell well, and that led to financial difficulties that meant the car company was eventually acquired by Peugeot.
  • After WWII, Michelin owned Citroën and wanted to make a car for the people. The Citroën 2CV was designed for driving on French roads, so it was incredibly sturdy, and tests were carried out by driving through ploughed fields with trays of eggs on the seats. Although changes in design happened, some version of the Citroën 2CV was in production from 1949 all the way through to 1990.
  • The Citroën 2CV Safari had some crazy extra features. It was a four-wheel-drive vehicle, and Citroën decided that four-wheel drive meant that it would be better to have two engines...one at the front and one at the back. The fuel cap sticks out of the driver's door, and the tank was right under the driver's seat!