The Bosch EDC16C34 ECU is an engine control unit designed for Citroën and Peugeot cars with a 1.6 HDi diesel engine. This is an original used part from PSA vehicles, suitable especially for professional auto mechanics and experienced home repairers who often search for a unit according to a specific code.

This Bosch EDC16C34 unit is used in models with a 1.6 HDi engine with an output of 80 kW and an automatic transmission, typically in the Citroën C4, but also in other PSA cars with the same equipment and engine. Thanks to the exact number of the unit, it is easy to find a match with the original part in the vehicle.

Technical information:
Manufacturer: Bosch / PSA
Type: Engine Control Unit (ECU) – EDC16C34
Fuel: Diesel (HDi / HDi FAP)
Designed for performance: 1.6 HDi 80 kW (approximate, according to original use)
Gearbox: Automatic (as originally used in Citroën C4)

Model:
Citroën C4 1.6 HDi 80 kW automatic
(use also in other Citroën/Peugeot models with matching engine and software – must follow the unit numbers)

Product codes:
Bosch: 0 281 011 966 (0281011966)
PSA: 9662670780, 9663190880

Other numbers:
PSA: 1942H9, 1942J0
HW: 9653958980

This ECU is suitable as a replacement for a damaged original control unit if the listed codes match. Matching numbers greatly simplify the assembly, coding and customization of the car unit. The use of original Bosch units guarantees correct communication with other electronics in the vehicle (BSI, immobilizer, automatic transmission, on-board network).

Installation recommendations:
– Always disconnect the vehicle battery before installation.
– Check that all numbers on the unit label (both Bosch and PSA codes) match the original part.
– When disassembling the original ECU, be careful when handling the connectors, do not bend the pins and do not handle the unit by the cable bundle.
– Install the unit in a dry, clean environment, making sure that no oil, water or dirt gets into the connectors.
– After physical assembly, software customization (immobilizer, injector coding, car configuration) is required for most PSA cars using diagnostics.
– Installation and subsequent coding should be entrusted to an experienced car mechanic with knowledge of Citroën/Peugeot diagnostics to ensure problem-free engine function, correct starting and correct communication with other control units.

With product numbers 0281011966 and 9663190880, this ECU plays a vital role in managing engine functions, optimizing fuel injection, and improving overall vehicle efficiency. Typically, the ECU may need replacement due to electrical failures or software malfunctions, which can result from wear and tear over time.

Upgrading your ECU can lead to better fuel efficiency, improved vehicle responsiveness, and compliance with emission standards. When replacing the ECU, it’s recommended to consult a professional mechanic to ensure proper installation and compatibility.

Technical Information

• Manufacturer: Bosch
• Model: EDC16C34
• Product Codes: 0281011966, 9663190880
• Additional Numbers: 9662670780, 1942H9, 1942J0, HW 9653958980