5WS40104C-T – Used Parts Vendor https://www.usedpartsvendor.com Citroën Peugeot spare parts Sun, 25 Jan 2026 03:26:43 +0000 en-GB hourly 1 https://wordpress.org/?v=6.9.4 ECU Siemens SID 801A Citroën Peugeot 5WS40104C-T 193951 https://www.usedpartsvendor.com/electro-components/control-units/dir-unit-injection/ecu-siemens-sid-801a-citroen-peugeot-5ws40104c-t-193951-2/ Sat, 01 Feb 2025 03:36:34 +0000 https://www.usedpartsvendor.com/uncategorized/ecu-siemens-sid-801a-citroen-peugeot-5ws40104c-t-193951-2/ The Siemens SID 801A ECU is a crucial component for the proper functionality of 2.0 HDi engines in Citroën and Peugeot vehicles. This engine control unit (ECU) manages various engine parameters to ensure optimal performance, fuel efficiency, and emissions control.

Commonly found in models such as the Peugeot 307, this ECU may need replacement due to various factors, including electrical faults or physical damage over time. Regular monitoring and timely replacement can help maintain vehicle performance and prevent further issues.

Installation of the ECU is straightforward for experienced mechanics. It typically involves disconnecting the vehicle’s battery, removing the old unit, and replacing it with the new one, followed by reprogramming if necessary.

Technical Information:

  • Manufacturer: Siemens
  • Model: SID 801A
  • Product Codes: 9651942480, 9647423380
  • Other Numbers: 5WS40104C-T, 193951
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