Product Overview

This ABS/ESP control module with integrated hydraulic block is the electronic brain and actuator for the vehicle’s anti-lock braking and stability systems. The unit houses solenoid valves, the hydraulic pump and the control electronics that modulate brake pressure during ABS and ESP interventions. It is supplied with a short piece of wiring harness to connect to the vehicle loom and sensors.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Peugeot 407 (2008) 1.6 HDi, Engine Code 9HZ. May also be found on other Stellantis models using the same part codes.
• Product Codes: 9665736080, 0265950659, 265950659, 41682607380
• Additional Numbers: 4541HE, 4541HF, 541HE

Compatibility And Search Tips

This module is often searched by its product numbers (for example 9665736080 or 0265950659). Primary fitment is Peugeot 407 (2008) 1.6 HDi. Other Citroën/Peugeot models that share ABS/ESP systems with these codes may be compatible — check the listed part numbers when searching.

Recommended Installation

Replacement should be performed by a professional mechanic or a competent DIYer with suitable tools and diagnostic equipment. Typical replacement steps:

• Park on level ground, secure vehicle and disconnect the negative battery terminal.
• Depressurize the brake system if required and remove trim or components to access the ABS unit.
• Disconnect electrical connectors and brake lines from the ABS hydraulic block (prepare to capture brake fluid).
• Unbolt and remove the old unit; fit the replacement, connect wiring harness and brake pipes, and torque bolts to manufacturer specification.
• Refill the brake reservoir with the recommended fluid (usually DOT4) and perform a full brake bleeding procedure to remove air from the system.
• Use a diagnostic tool (e.g., Peugeot/Citroën compatible scanner) to clear fault codes, run ABS pump priming procedures and, if required, code or initialize the new control unit.

Always follow safety procedures when working with the brake system. If you are unsure about coding or initialization, use a professional diagnostic tool to complete the final steps.

Why The Part Most Often Fails

ABS/ESP modules typically fail due to a combination of electrical and hydraulic causes. Common reasons include corrosion and moisture ingress in connectors, failure of the internal pump motor, valve block wear or leakage, and electronic component failure caused by voltage spikes or prolonged exposure to heat. Age and mileage are strong factors—vehicles over 10 years or 100–150k km are more likely to experience faults. Symptoms include ABS or ESP warning lights, loss of ABS functionality, noisy pump operation, and brake fluid leaks around the hydraulic block.

Practical Notes For Mechanics and DIYers

When sourcing a replacement, cross-check the part numbers listed above. After installation, verify that wheel-speed sensors and wiring are intact and free of corrosion, because sensor faults often trigger module errors that can be mistaken for a failed ABS unit. Proper bleeding and diagnostic initialization are essential to restore full braking and stability functionality.

Complete ABS/ESP module (hydraulic “cube” with pump and control unit) for Citroën/Peugeot. The unit is particularly suitable for the Peugeot 308 and bears the production designation Bosch 0 265 800 884. Thanks to the exact pairing according to the part numbers (PSA 9666093180, 9660107180, 4541LF, 4541LG)

The

part is dismantled, tested and fully functional. It also includes a piece of cabling for easier assembly or repair of the original volume. This is an original solution that maintains the proper function of ABS and the stabilization system ESP – ie safety features that ensure the stability of the car during braking and avoiding maneuvers.

Typical symptoms of defects of the original unit are the lights of ABS/ESP, error messages on the on -board computer, non -functional pump or intermittent contact in the control part. The replacement of the complete block is a quick and proven solution if the hydraulic part or control electronics are damaged. Before assembly, we recommend comparing the numbers on the label with your original work – avoiding compatibility problems.

Installation usually includes the removal of the holder, disconnecting the brake pipes and the connector, installing a replacement block and subsequent venting of the brake system (ideally with the replacement of the Dot 4 brake fluid). For PSA cars, there is usually basic settings via diagnostics (diagnosis/lexia): telecoding of parameters and calibration of the steering wheel sensor, or pump and valve test. The procedure may vary according to the car equipment.

Technical information

• Manufacturer: Bosch
• Model: Peugeot 308 (T7)
• Product codes: 9666093180, 0265800884 (Bosch 0 265 800 884), 9660107180
• Other numbers: 4541LF, 4541lg

For the correct selection, we recommend that you follow the numbers of the unit (above) and the shape of the connector. If you are unsure of compatibility, check it according to VIN or compare the label of your original episode. This ABS/ESP module is an ideal replacement in the case of an electrical or mechanical failure of the original “cube”.

If you are specifically looking for ABS unit/pump for dog labeled 9666093180, 0265800884, 9660107180 or PSA 4541LF/4541LG, this part is the right choice for professional repair and home service.

This used ABS/ESP control module and hydraulic pump is designed for Peugeot 308 applications and replaces the vehicle’s original ABS block. It controls anti-lock braking (ABS) and electronic stability program (ESP) functions by managing hydraulic pressure and pump operation during braking events. For mechanics and DIY enthusiasts, this unit offers a reliable replacement option when the original module fails or develops hydraulic/electrical faults. Supplied with a length of wiring to ease installation and connection.

Function And Symptoms

The ABS/ESP module monitors wheel speed sensors and modulates brake pressure to prevent wheel lockup and maintain vehicle stability. Typical symptoms of a failing unit include ABS and ESP warning lights on the dashboard, a pulsating or soft brake pedal, audible pump noise when ABS activates, loss of ABS/ESP intervention and stored fault codes related to pump motor, valves or electrical communication.

Technical Information

• Manufacturer: Bosch / ATE (As Marked)
• Model: Peugeot 308
• Product Codes: 0265951870, 9677013480
• Other Numbers: 1680902180, 1680902080, 1607126280, 1607126180, 265951870

Replacement And Installation Recommendations

• Always Disconnect The Battery Before Starting Work To Protect The Module And Avoid Short Circuits.
• Support The Vehicle Securely And Remove The Necessary Trim/Wheel To Access The ABS Unit.
• Before Disconnecting Brake Lines, Relieve System Pressure And Be Prepared To Cap Lines To Prevent Contamination.
• Label And Photograph Electrical Connectors To Ensure Correct Reconnection. Handle Connectors Carefully To Avoid Bent Pins Or Corrosion Damage.
• After Mechanical Installation, Perform A Full Brake Bleed Procedure To Remove Air From The System. Use A Pressure Bleeder Or A Diagnostic Tool Assisted Bleed If Available.
• Clear Any Fault Codes And Verify System Operation. Some vehicles Require Module Coding/Initialization Or Cloning Of EEPROM/Flash Data To Restore Full Functionality.
• Where Coding Is Required, It Is Recommended To Use PSA Diagnostic Tools (DiagBox/Lexia/PP2000) Or Equivalent Equipment To Ensure Proper Initialization.

Why This Part Most Commonly Fails

• Hydraulic Corrosion Or Internal Valve Block Failure Caused By Moisture Or Contaminated Brake Fluid.
• Pump Motor Wear Or Seizure After Prolonged Use, Especially If The Unit Frequently Activates.
• Electrical Connector Corrosion Or Wiring Damage Leading To Intermittent Communication Errors.
• Electronic Control Faults Within The Module Due To Age, Thermal Stress Or Water Ingress.
• Associated Wheel Speed Sensor Failures That Cause Excessive Load Or Error States On The ABS Unit.

Notes For Workshop Use

As A Workshop Technician, Inspect Brake Fluid Condition And The Entire Brake Circuit When Replacing The Unit. Replace Corroded Pipes Or Fasteners And Ensure All Connections Are Clean And Tight. After Installation, Verify That ABS And ESP Lights Are Extinguished And That No Related Diagnostic Trouble Codes Remain.

Are you looking for a reliable replacement for your Citroën C5 X7 ABS ESP module? Our selection of quality used auto parts includes an efficient ABS ESP module sourced from a Citroën C5 X7 1.6 HDI model. This component is crucial for the proper functioning and stability of the brake system, which is why choosing the right one should not be underestimated.

The ABS ESP module ensures effective operation of the anti-lock braking system and electronic stability program, which are critical for your driving safety. With this part, your vehicle will perform better on slippery or unstable surfaces, minimizing the risk of accidents due to loss of control.

Technical Information

• Manufacturer: PSA CITROEN PEUGEOT
• Model: Citroën C5 X7 1.6 HDI
• Product Codes: 9663887780 0265950657 4541GE, 4541GF, 4541KL

This ABS ESP module has been carefully dismantled and checked to ensure its functionality. Its installation is straightforward and can be handled by any experienced mechanic or car repair enthusiast. Regarding failure frequency or replacement, this specific part is considered relatively reliable when properly maintained and regularly inspected as part of the vehicle’s routine upkeep.

We highly recommend this module for anyone seeking an effective solution for repairing or restoring the braking system of Citroën C5 vehicles. Its use is optimal for the mentioned model, but if you have any questions about compatibility with other models, please do not hesitate to contact us.

Choose our quality used parts and ensure a safe and reliable repair at a fraction of the cost of a new part. Save money without compromising on quality and performance!