This ECU FAP EAS300.01 by Magneti Marelli is a dedicated control unit designed to manage DPF-related functions and injection parameters on selected Citroën and Peugeot diesel models. It coordinates particulate filter regeneration requests, monitors soot load signals, and communicates with engine management systems to optimise combustion and reduce emissions. The unit is commonly referenced by OEM part numbers and is often searched for by its product codes—making it an ideal replacement part for professional workshops and experienced DIY mechanics.

The module is compatible with a range of Stellantis diesel vehicles, including Citroën C5 and C8 and Peugeot 307 and 807 (verify fitment by part number). Symptoms of a failing DPF control unit include persistent DPF warning lights, inability to start the forced regeneration, irregular exhaust behaviour, and stored fault codes related to soot sensors or DPF control. Because this component directly affects regeneration logic and injection timing adjustments related to soot management, replacing a faulty unit typically restores correct DPF operation when other related components (sensors, wiring, DPF itself) are functional.

Technical information

• Manufacturer: Magneti Marelli
• Model: ECU FAP EAS300.01
• Product Codes: 9647428280-01, 09733309901
• Other Numbers: 9733309901, 1525CY, EAS300.01
• Applicable Vehicles: Citroën C5, Citroën C8, Peugeot 307, Peugeot 807 (common applications)

Installation recommendations

Before starting work, disconnect the vehicle battery to avoid electrical damage. Locate the DPF control ECU—typically in the engine bay or close to the main engine ECU depending on the model. Remove any protective covers and unplug all connectors carefully, releasing locking tabs to prevent connector damage. Replace the unit using the original mounting hardware and ensure connector pins are clean and fully seated. After installation, clear fault codes with a compatible diagnostic tool and run a system check; perform a forced regeneration or adaptation procedure if required by the vehicle’s service routine. Use anti-seize or dielectric grease on connectors if corrosion was present to improve long-term reliability.

Why this part commonly fails

DPF control units are exposed to thermal cycling, vibration, and potentially contaminated signals from soot sensors. Common causes of failure include connector corrosion, water ingress, thermal stress, and electrical surges. In many cases, the root cause is related to sensor faults or heavy soot/clogging in the DPF system that force the ECU to operate at limits; addressing only the ECU without checking sensors and the DPF itself may result in recurring faults. Regular inspection of wiring, sensor condition, and ensuring the DPF can regenerate properly will reduce premature ECU failures.

Note: This part is frequently searched by its part numbers (e.g., 9647428280-01, 09733309901). Always compare part numbers to confirm fitment before ordering.

This Magneti Marelli ECU (EAS300.01) is designed to manage injection timing and DPF regeneration for a range of Citroën and Peugeot diesel models. Ideal for professional workshops and experienced DIY mechanics, the unit is commonly searched by its product codes (e.g. 9647428280, 09733309901, 1525CY). It restores proper diesel particulate filter control, helps eliminate fault codes related to FAP/DPF systems and ensures reliable communication with engine sensors for correct regeneration cycles. Supplied for vehicles where this ECU is specified, it is a direct-fit electronic control unit intended to replace a failed or malfunctioning injection/DPF controller.

Technical Information

• Manufacturer: Magneti Marelli
• Model: EAS300.01
• Product Codes: 9647428280, 9647428280-01, 09733309901, 9733309901, 1525CY, 09733309901
• Other Numbers: EAS300.01, 1525CY NFP

Applications

Typical vehicle fitments: Citroën C5, Citroën C8, Peugeot 307, Peugeot 807. Verify the unit part number against the original ECU label before installation.

Function and Overview

This control unit manages fuel injection parameters and oversees DPF regeneration logic. It receives inputs from sensors (engine speed, temperature, pressure, differential pressure across the DPF, etc.), calculates regeneration needs and coordinates injector timing and regeneration strategies. When operating correctly it reduces soot accumulation, controls emissions, and prevents limp-home modes caused by uncontrolled DPF conditions.

How Replacement Is Performed

Replacement should be performed by a qualified technician or an experienced DIY mechanic with basic electrical knowledge. General procedure:

• Disconnect the negative battery terminal before any work.
• Access the ECU location (engine bay or cabin mounting depends on model) and remove any protective covers.
• Carefully unplug electrical connectors and remove mounting fasteners.
• Fit the replacement unit, secure fasteners and reconnect all connectors.
• Perform required initialization/coding as described below to restore full functionality.

Installation Recommendations

Always follow manufacturer removal and installation procedures. Avoid excessive force when disconnecting connectors and protect the unit from moisture and contamination during installation. If possible, perform coding and final checks using PSA diagnostic equipment to ensure proper integration with vehicle systems.

Installation and Coding – Important

• The unit is used and is paired with the original vehicle (VIN/PIN/keys).
• Options to activate the unit:
  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 performed by a specialist 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.

Why This Part Fails Most Often

Common causes of ECU failure include water ingress or corrosion at connectors, thermal stress from prolonged exposure to high underhood temperatures, electrical surges or poor battery/charging system condition, and damage from improper handling. Secondary factors can be repeated DPF regeneration faults or faulty sensors that place extra load on the control unit. Regular inspection of wiring, connector integrity and the charging system can reduce the risk of premature ECU failure.

Notes for Buyers

Search the unit by listed product codes (9647428280, 09733309901, 1525CY, EAS300.01) for quick identification. Compatible with the vehicle models listed above when the OEM part number matches. Proper post-installation coding or cloning is essential for full functionality.

This Magneti Marelli ECU is designed to manage injection-related functions linked to the Diesel Particulate Filter (FAP/DPF) on selected Citroën and Peugeot models. Ideal for professional workshops and competent DIY mechanics, the unit restores proper DPF regeneration control and injector/timing-related management when the original control module is faulty. Supplied with multiple common part numbers, it fits a range of models where the EAS300.01 / 9647428280 family is specified.

Key Benefits

– Restores reliable DPF regeneration and related injection control logic
– Compatible with known PSA electrical/engine management architectures using EAS300.01 hardware
– Useful replacement for fault codes related to DPF control, excessive soot accumulation, or ECU electronic failure

How It Works

The ECU monitors sensors (engine speed, temperature, differential pressure across the DPF, lambda/O2 signals and other engine sensors) and controls injection timing and post-injection events required for forced or passive DPF regeneration. By adjusting injection parameters and communicating with the vehicle network, the unit helps clear soot from the filter when required and manages related engine functions.

Compatibility And Application

Frequently fitted to Citroën and Peugeot diesel models using Magneti Marelli EAS300.01 control hardware. Known compatible vehicle examples (verify against part numbers): Citroën C5, Peugeot 307. Always match the part numbers below to the vehicle’s original ECU marking before installation.

Technical Information

• Manufacturer: Magneti Marelli
• Model: EAS300.01 (Control Unit). Compatible Vehicle Models: Citroën C5; Peugeot 307
• Product Codes: 9647428280, 9647428280-01
• Other Numbers: 9733309901, 09733309901, 1525CY, 09733309901, EAS300.01

Installation Recommendations

– Always disconnect the battery before removal and installation to prevent damage to the electronics.
– Observe anti-static precautions and avoid touching exposed board components or pins.
– Ensure all connectors and pins are clean and corrosion-free; secure the ECU in its mounting bracket in the original orientation.
– After mechanical fitment, perform required software initialization/coding where applicable so the unit communicates correctly with other vehicle systems.

Installation and Coding – Important

• The unit is used and is “paired” with the original vehicle (VIN/PIN/keys).
• Options to put the unit into service:
  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 performed by a technician with PSA service equipment (DiagBox/Lexia/PP2000).
• Always disconnect the battery before disassembly/assembly and follow the manufacturer procedure to avoid damaging the unit.

Why This Part Fails Most Often

Common causes of ECU failure include water ingress or moisture in the connector area, thermal stress from prolonged high under-hood temperatures, connector corrosion, or internal electronic component faults. Secondary effects such as a severely blocked DPF, repeated failed regeneration cycles, or faults in sensors/actuators (differential pressure sensor, EGR, injectors) can increase load on the ECU and contribute to failure.

Replacement And Practical Tips

When replacing the ECU, confirm the external part numbers match and inspect the DPF system and related sensors. If the DPF is heavily clogged, address the filter and sensor faults before installing the replacement ECU to avoid reoccurrence of error codes or premature failure. After installation follow the coding/initialization steps to ensure full functionality.

Notes For Mechanics

Keep the ECU’s part numbers handy during diagnostics and parts ordering: technicians often search by the item number (9647428280 / 9647428280-01 / 9733309901 / 1525CY). Proper diagnosis of DPF-related faults typically includes scanning for stored fault codes, checking sensor signals, and verifying regeneration events.

FAP (ECU) MAGNETI MAGNETI MAGNETI for Citroën C -Crosser and Peugeot 4007. The unit controls the dosing additive (EOLYS) into fuel to facilitate the regeneration of the particulate filter. Suitable as a replacement for the original part with the same codes 9663094180, 1860ab003, 1525.NP.

Unit function: When refueling, it determines the correct dose of additive to the fuel tank based on information from the vehicle network (CAN). The additive reduces the soot burning temperature, speeds up FAP regeneration and protects the filter from premature clogging. In practice, defective ECU additive is manifested by FAP error messages, non -functional additives, engine light or emergency mode.

Installation and commissioning: The unit is usually located in the rear of the car near the additive tank. When replacing, we recommend disconnecting the battery, check the condition of the connector and cabling (the humidity/corrosion damage) and after installation to make telekoding and basic settings via diagnostics (Diabox/Lexia/PP2000). It is necessary to choose the correct type of additive and initialize the filling of the additive tank and the FAP system.

Compatibility: Designed for diesel versions with FAP. You can get the highest certainty of compatibility by comparing the part number from the label of the original unit with the codes. In the case of confusion of code, configuration (telecoding) may be required according to the equipment of the car.

technical information

• Manufacturer: Magneti Marelli
• Model: Citroën C -Crosser (2.2 HDI FAP), Peugeot 4007 (2.2 HDI FAP)
• product codes: dog 1525.NP; Dog/Continental ref. 9663094180; Mitsubishi 1860ab003
• Other numbers: Not specified

Practice Tip: This unit suffers from water and salt due to the chassis. When mounting, we recommend treating the connector contacts and check the tightness of the covers. After replacement, always perform a complete additive test (pump activation, flow control and reset of counters in the control system).

Looking for a reliable solution to restore the function of your diesel particulate filter (FAP) control unit in your Citroën or Peugeot? This quality used Magneti Marelli control unit, originally intended for Citroën and Peugeot models, is a perfect choice for professional mechanics and DIY enthusiasts who want to maintain their vehicles in optimal condition without the high cost of new parts.

The FAP ECU plays a crucial role in reducing particulate emissions from diesel engines by regulating the combustion process and ensuring efficient filtration. Common causes of failure include prolonged operation under demanding conditions, resulting in wear of electronic components or software degradation. Replacing this unit is essential to maintain environmental compliance and proper vehicle function.

Technical Information:

Manufacturer: Magneti Marelli
Model: Citroën, Peugeot
Product Codes: 9647428280-00, 09733309900
Additional Codes: 1525CY

Obtain this quality used control unit and ensure that your Citroën or Peugeot receives the best care at a fraction of the price of new parts. Reference to product numbers guarantees compatibility with your specific vehicle model. Do not miss the opportunity to acquire this essential automotive component!

Compatible models include a range from the PSA Citroën and Peugeot lineup, making it a versatile choice for automotive mechanics and DIY car enthusiasts. The specific part numbers, including 9645029780 and 09733009902, ensure compatibility with multiple vehicle systems and applications.

This control unit plays a crucial role in maintaining efficient emissions control and optimizing diesel performance. Regular monitoring and replacements are advised as ECU failures can lead to poor engine performance and increased emissions.

Technical Information

• Manufacturer: Magneti Marelli
• Model: ECU FAP EAS100.01
• Product Codes: 9645029780, 09733009902
• Additional Numbers: 1525AZ

Installing this ECU in your vehicle restores optimal performance and combustion efficiency, resulting in improved vehicle performance, reduced fuel consumption, and lower emissions. It is suitable for Peugeot models 406, 607, 807, and Citroën C8 with a 2.2 HDI engine producing 94 kW or 98 kW, highlighting its versatility and wide application.

Technical Information

• Manufacturer: MAGNETI MARELLI
• Model: Citroën C8, Peugeot 406, Peugeot 607, Peugeot 807
• Product Codes: 9648282380-01, 09733009904, 1525AZ
• Additional Numbers: EAS100.01

If you are a mechanic or perform repairs yourself, you will appreciate that installing this ECU is straightforward and uncomplicated using standard tools and procedures. With proper installation and the integrity of other system components, you can expect stable and long-lasting functionality.

Keep in mind that this is a used component that has been thoroughly tested to ensure flawless functionality in your vehicle. Investing in a used part is not only economically advantageous but also an ecological choice that contributes to reducing waste and utilizing already manufactured resources.

By choosing this ECU, you gain a key element for your vehicle’s proper functioning, while also contributing to environmental protection. Let your car operate efficiently with the confidence that this is a quality and verified part!

Are you searching for a reliable and high-quality used auto part for your Citroën or Peugeot vehicle? We present the Magneti Marelli Control Unit designed specifically to manage the additive injection for the FAP (Diesel Particulate Filter) system. This component is essential for the optimal operation of the particulate filter and contributes to improved environmental performance by reducing harmful emissions.

This unit has been carefully removed from a vehicle and is ready for installation. Using this part ensures your car will continue effectively removing pollutants from exhaust gases, which is crucial for meeting emission standards and prolonging engine life.

Technical Information:

Manufacturer: Magneti Marelli
Model: Citroën C8, Citroën Xsara Picasso, Peugeot 807
Product Codes: 9651212180, 9651212180-01, 1525CZ
Additional Numbers: NFP

This control unit is suitable for Citroën C8, Citroën Xsara Picasso, and Peugeot 807 models, as confirmed by the product labels. Installation is typically performed by a professional auto mechanic; if you are new to automotive repairs, it is recommended to consult your local installation specialist.

Regarding functionality, FAP systems commonly require replacement after a certain mileage due to sensor failure or clogging. Replacing this control unit can help restore your vehicle’s original performance and ensure compliance with emission regulations.

Purchase this genuine used part to keep your car in excellent condition while saving costs compared to buying new components. This product is available immediately and ready for dispatch, so do not hesitate to take a step towards enhancing your vehicle’s performance and environmental responsibility.

Commonly sought by automotive technicians and DIY enthusiasts, this ECU plays a pivotal role in maintaining the diesel particulate filter (DPF) functionality. Its primary purpose is to manage the injection of additives that help in the regeneration of the DPF, ultimately leading to improved fuel efficiency and reduced emissions.

The ECU FAP EAS100.01 replaces parts with product numbers such as 9646216380, 09733009903, 1525AS, and 1525AZ. It is recommended to check the compatibility with your vehicle’s specific model to ensure optimal performance.

When replacing the ECU, ensure that the vehicle is turned off and follow the manufacturer’s guidelines for installation. Regular checks are advised, particularly in high mileage vehicles, as this component may degrade over time due to engine vibrations and environmental factors.

Technical Information

• Manufacturer: MAGNETI MARELLI
• Model: FAP Control Unit
• Product Codes: 9646216380, 09733009903, 1525AS
• Additional Numbers: 1525AZ

This product is compatible with several models, including those using the product codes 96433600280, 09733009901, 1525AS, and 1525AZ, providing broad applicability across multiple vehicles.

Replacing the ECU FAP is essential if you’re experiencing issues with emissions or if your check engine light is activated. Typically, these units can last several years; however, factors like driving conditions and maintenance practices may lead to premature failure.

Technical Information:

• Manufacturer: MAGNETI MARELLI
• Model: ECU FAP EAS100.02
• Product Codes: 96433600280, 09733009901
• Other Numbers: 1525AS, 1525AZ

Ensure that you consider the compatibility of this control unit with your Citroën or Peugeot model to maintain optimal performance and adhere to emission regulations.