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.

Looking for a reliable replacement ECU for your Citroën C5? This Bosch EDC16C34 ECU is fully functional and specifically engineered for Citroën and Peugeot vehicles. It plays a crucial role in the engine management system by controlling fuel injection and other essential engine processes to optimize performance and efficiency.

Customers will appreciate that the Bosch EDC16C34 ECU is fundamental to the proper operation and efficiency of their vehicle, whether driving in urban environments or on long trips. Its reliability makes it an excellent choice for both experienced DIY enthusiasts and professional mechanics seeking to maximize vehicle performance.

Technical Information:

• Manufacturer: Bosch
• Model: Citroën C5 1.6 HDI 80 kW
• Product Codes: 0281011561, 9656840680
• Additional Numbers: 9653958980, 1939E4

If you require technical support or further information about installation and functionality, please contact us. This product boasts high efficiency and reliability, which is especially vital for older vehicle models where every component is valuable.

Thanks to detailed inspection and rigorous evaluation, we guarantee that this used auto part meets all standards for quality and functionality. Secure this key component for your Citroën or Peugeot and ensure your vehicle runs like new again.

This ECU manages the injection system, optimizing fuel combustion efficiency to maximize engine performance and minimize harmful emissions. Proper functioning of this control unit ensures smoother engine operation, contributing significantly to fuel savings and compliance with environmental regulations.

Technical Information:

• Manufacturer: Bosch
• Model: EDC16C34, originally fitted in Peugeot 207 1.6 HDI
• Product Codes: 9663755480, 9653958980, 0281013868
• Additional Numbers: 1942KY, 1942KZ, 1943T5

The specified product codes and variant numbers ensure precise compatibility and easy identification for replacement purposes. Although installation can be complex and requires expert knowledge, professional workshops or experienced DIY mechanics can perform the replacement by following the official service manuals relevant to these vehicle models.

As a dependable automotive part, this Bosch EDC16C34 ECU restores vital engine management functions and ensures consistent vehicle performance. Its robust construction and original design make it a preferable choice for effective engine control restoration.

Take the step towards high-quality repairs by ordering the Bosch EDC16C34 ECU today to maintain uninterrupted vehicle operation. For further assistance or installation guidance, please feel free to contact us.

Our used part comes directly from a Citroën C4 Picasso 1.6 HDI with a power output of 80 kW, ensuring excellent compatibility and reliability. This type of control unit is crucial for the proper functionality of your vehicle’s injection system, and its correct selection can significantly affect overall driving characteristics and fuel consumption.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C4 Picasso 1.6 HDI, Peugeot (compatible models)
• Product Codes: 0281013334, 9666986680, 1943PY, 1943PZ, 1677619180
• Additional Numbers: HW 9653958980

Installing this control unit is a process that typically requires knowledge and experience in automotive electronics, so we recommend having it installed by professionals. Replacing the control unit may be a necessary step in case of failure of the old unit, which can manifest as incorrect engine function, increased fuel consumption, or emission issues.

If you want to ensure your vehicle operates as new again, don’t hesitate to invest in quality used parts like our Bosch ECU. Enhance your ride, reduce consumption, and give your vehicle the best it can get.

The Engine Control Unit (ECU) is a critical component responsible for managing key engine parameters such as fuel injection timing, emission control, and overall performance. Proper ECU function ensures improved fuel efficiency, reduced emissions, and reliable engine response. Bosch’s high manufacturing standards guarantee precise control and long-term durability.

Technical Information:
Manufacturer: Bosch
Model: Citroën C4 Picasso, Peugeot (general models with 1.6 HDI engines)
Product Codes: ECU Bosch EDC16C34
Additional Numbers: 0281014729, 9665674480, 1943PY, 1943PZ, 1677619180, HW 9653958980

This ECU is a reliable choice for professional mechanics and automotive enthusiasts who perform their own maintenance. Its compatibility with a wide range of 1.6 HDI engine models and Bosch’s precision engineering make it a sought-after part that supports efficient engine management and vehicle longevity.

Commonly, the ECU may need replacement due to electrical failures, software corruption, or damage from external factors. It plays a vital role in managing fuel injection, ignition timing, and overall engine performance. Regular diagnostics can prevent premature failures, helping car enthusiasts and mechanics to maintain vehicle reliability.

Replacing the ECU usually involves disconnecting the vehicle’s battery, accessing the unit in the engine compartment, and carefully uninstalling and reinstalling the new unit. It is recommended to reset the vehicle’s computer after installation to ensure all parameters are updated.

Technical Information

• Manufacturer: Bosch
• Model: Citroën, Peugeot
• Product Codes: 0281011634, 9660324180
• Additional Numbers: 1942WF, HW 9653958980

This unit is compatible with the EDC16C34 system, making it an essential part for maintaining your vehicle’s functionality. Addressing issues such as fuel efficiency and engine management, replacing a faulty ECU can restore your vehicle to its ideal performance levels.

Commonly, the ECU may fail due to various factors, including electrical issues, overheating, or software malfunctions. Regular diagnostics and prompt replacement can prevent further engine complications. Make sure your vehicle is equipped with a high-quality ECU to ensure long-lasting service.

Technical Information

• Manufacturer: Bosch
• Model: Peugeot 307 1.6 HDI
• Product Codes: 9660324180, 1942WF, 1942WG, 0281011634
• Other Numbers: 9653958980

Are you looking for a reliable and efficiently functioning ECU for your Citroën or Peugeot? Introducing the used Bosch EDC16C34 ECU, which has been meticulously prepared and is in like-new condition. This product is the ideal choice for those who prioritize performance and reliability.

This unit is ready for immediate installation in your vehicle, with no further software or hardware flashing required—only the coding for integration into the specific vehicle is necessary. This process is quick and simple, saving you time and potential costs for additional modifications.

Technical Information:
– Manufacturer: Bosch
– Model: Citroën C4 Grand Picasso 1.6 HDI 80kw
– Product Codes: 0281012980, 9663476180, 1677624280, 1942J1, 1942J2
– Other Numbers: HW 9653958980

This ECU is specifically designed for Citroën C4 Grand Picasso models, ensuring compatibility and flawless operation of your vehicle. With prior thorough inspection and preparation, this unit is capable of responding immediately to all your requirements, enhancing the performance of your car’s engine. It not only improves overall performance but also contributes to more efficient fuel consumption and reduced emissions.

With this product, you gain not only functionality but also the assurance that you have invested in quality that lasts. May your journeys with the enhanced Citroën C4 Grand Picasso be safe and comfortable!

High-quality Bosch EDC16C34 engine control unit designed for PSA Group 1.6 HDi diesel engines (80 kW). This ECU is a direct-fit replacement for many Citroën and Peugeot applications and is commonly searched by part numbers such as 0281013872 and 9664843780. Built with OEM-level electronics, the unit manages fuel injection timing, boost control, EGR interaction and engine diagnostics — making it an essential component for correct engine operation. Ideal For Professional Workshops And Experienced DIY Mechanics Who Need A Reliable Replacement ECU That Supports Cloning Or Reinitialization.

Technical Information

• Manufacturer: Bosch
• Model: EDC16C34
• Product Codes: 0281013872, 281013872
• Additional Numbers: 9664843780, 1677633280, 1943K7, 1943K8, 1943V5, 9653958980, 1942WE, 1942WF, HW 9653958980, NFP
• Application: Citroën And Peugeot Vehicles With 1.6 HDi 80 kW Engine
• Known Model Example: Citroën C4 Picasso

Installation And Coding – Important

• The Unit Is Used And Is Paired With The Original Vehicle (VIN/PIN/Keys).
• Commissioning Options:
1. Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
2. Virginization And Subsequent Initialization/Telecoding Via DiagBox (Possibly Online) + Key Adaptation.
• It Is Recommended To Be Performed By A Technician With PSA Service Equipment (DiagBox/Lexia/PP2000).
• Always Disconnect The Battery Before Removal/Installation And Follow The Manufacturer’s Procedure To Avoid Damaging The Unit.

Fitment And Application

This Bosch EDC16C34 ECU Is Intended For 1.6 HDi Diesel Engines Producing 80 kW Found Across Various Citroën And Peugeot Models. The Unit Is Frequently Fitted To Vehicles Such As The Citroën C4 Picasso And Other PSA Models Using The Same Engine Management Platform. Confirmed Compatibility Can Be Determined From The Listed Part Numbers During Parts Lookup.

Function And Common Failure Causes

The ECU Controls Fuel Injection, Turbocharger Management, EGR Interaction, Engine Safety Strategies And Fault Reporting Via OBD. Common Causes Of Failure Include Connector Corrosion Or Water Ingress, Damaged Power Supply Or Grounding Circuits, Solder Joint Fatigue On The PCB (Thermal Cycling), And Corrupted EEPROM/Flash Data. Electrical Surges Or Poorly Performed Repairs Can Also Lead To Malfunctions.

Installation Recommendations

• Disconnect The Battery And Wait Several Minutes Before Starting Work.
• Observe ESD Precautions When Handling The ECU; Avoid Touching Pins And Circuitry.
• Inspect Wiring Harness And Connectors For Corrosion Or Damage; Repair Faulty Wiring Before Installing The New Unit.
• Fit The Unit Securely In Its Mounting Location And Ensure Proper Ground Connections.
• After Mechanical Installation, Perform Either Cloning Or Virginization And Proper Coding/Key Adaptation As Described Above.
• Verify Proper Operation By Reading Live Parameters And Checking For Stored Fault Codes After Commissioning.

Why This Unit Fails Most Often

Failures Typically Stem From Environmental Exposure (Moisture, Road Salt), Electrical Issues (Voltage Spikes, Poor Grounding), Or Internal Component Stress Due To Heat Cycling. In Many Cases, Symptoms Appear As Intermittent Engine Stalling, Loss Of Power, Erratic Fuel Trim Or Persistent Engine Fault Codes. Addressing The Underlying Cause (Damaged Connectors, Faulty Alternator, Or Short Circuits) Is Essential To Prevent Repeat Failures.

Why Choose This ECU

This Bosch EDC16C34 Unit Carries Recognized OEM Part Numbers And Is Suited For Professional Repair Operations. For Mechanics And Experienced DIY Enthusiasts Seeking A Direct Replacement With Full Support For Cloning Or Diagnostic Reprogramming, This Unit Offers A Cost-Effective Route To Restore Engine Management Functionality.

Product Description

This Bosch EDC16C34 engine control unit (ECU) with reference 0281013332 is designed for 1.6 HDi diesel engines used on many Citroën and Peugeot models. The unit manages fuel injection, turbocharging control, and emission systems to ensure optimal engine performance and fuel economy. Ideal for professional workshops and experienced DIY mechanics searching by part number (0281013332, 9664257580), this ECU is compatible with popular models such as Citroën C4 and Peugeot 307 / 407 fitted with 1.6 HDi engines.

Technical Information

• Manufacturer: Bosch
• Model: EDC16C34
• Product Codes: 0281013332, 9664257580, 9653958980, 1677624580
• Additional Numbers: 1942NZ, 1942PF, 1942NX, 1942NY, 1939AL, 1943NW

Compatibility

Commonly fitted to vehicles equipped with 1.6 HDi diesel engines. Typical compatible models include:

• Citroën C4
• Peugeot 307
• Peugeot 407

Function And Typical Failure Modes

The ECU (Electronic Control Unit) is the central processor that controls injection timing, quantity, turbocharger control, EGR management and related emission controls. When functioning correctly it optimizes power delivery and fuel consumption and manages fault diagnostics (DTCs).

Most Common Causes Of Failure:

• Electrical Stress: Voltage spikes, poor grounding or intermittent power can damage internal electronics.
• Moisture And Corrosion: Water ingress or corrosion on connectors causes intermittent faults or permanent failure.
• Thermal Cycling: Repeated heating and cooling over many years can degrade solder joints and components.
• External Component Failure: Faulty injectors, glow plugs, sensors or short circuits can overload the ECU.
• Physical Damage: Impact or incorrect handling during removal/installation.

Replacement Procedure

Only fit the unit if you have the appropriate mechanical skills and diagnostic tools. Typical replacement steps:

1. Ensure The Vehicle Is Secure And Parked On A Level Surface.
2. Disconnect The Battery Negative Terminal And Wait A Few Minutes To Avoid Short Circuits.
3. Locate The ECU (Refer To Vehicle Repair Manual For Exact Location).
4. Disconnect All Electrical Connectors Carefully, Releasing Any Retaining Clips.
5. Remove Mounting Bolts And Extract The Old Unit.
6. Fit The Replacement Unit, Secure Mounting Bolts And Reconnect All Connectors Firmly.
7. Perform Cloning Or Coding As Required (See Installation And Coding Section Below).
8. Reconnect The Battery And Verify Proper Operation Using A Diagnostic Tool.

Installation And Coding – Important

• The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
• Options For Commissioning:
• 1) Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
• 2) Virginization And Subsequent Initialization/Telecoding Via DiagBox (Or Online) + Key Adaptation.
• Recommended To Be Carried Out By A Professional With PSA Service Equipment (DiagBox/Lexia/PP2000).
• Always Disconnect The Battery Before Removal/Installation And Follow Manufacturer Procedures To Avoid Damaging The Unit.

Installation Recommendations

• Check Connector Pins For Corrosion Or Bent Pins Before Fitting.
• Replace Any Damaged Seals Or Mounting Hardware To Prevent Moisture Ingress.
• Use A Quality Diagnostic Tool To Clear Fault Codes And Verify Sensor Signals After Installation.
• When Possible, Clone EEPROM/Flash From The Original Unit To Preserve Immobilizer And Adaptation Data.

Why This Part Is Often Replaced

ECUs are frequently replaced when persistent engine management errors occur, such as refusal to start, loss of power, engine stalling, or multiple emission-related fault codes that cannot be resolved by replacing sensors alone. Many failures are secondary to electrical problems (bad battery, poor grounding) or water damage; addressing these root causes helps prevent repeat failures.

Keywords For Search

ECU Bosch EDC16C34, 0281013332, 9664257580, 1.6 HDi ECU, Citroën ECU, Peugeot ECU, Engine Control Unit, Diesel ECU, Cloning, DiagBox