Overview

High-quality Bosch ABS/ESP hydraulic block and control module compatible with Citroën C4 and Peugeot 307 platforms. Ideal for professional workshops and experienced DIY mechanics searching by OE numbers (9663241680, 0265950636) or alternative references. The unit integrates the ABS pump, hydraulic valves and electronic controller to manage anti-lock braking (ABS), electronic stability control (ESP) and traction interventions. Supplied with a short wiring harness section to simplify replacement and connector alignment.

Key Benefits

• Direct fit for many Citroën C4 and Peugeot 307 applications — reduces diagnostic time when replacing a failed ABS/ESP module.
• Bosch engineering ensures precise hydraulic modulation for stable braking performance and improved safety in emergency maneuvers.
• Searchable by multiple product codes and part numbers commonly used in parts catalogs and workshop databases.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C4, Peugeot 307
• Product Codes: 9663241680, 0265950636
• Other Numbers: 1682607580, 4541Q4, 4541Q5, 265950636, 9653241680

Installation Recommendations

Follow safe workshop procedures and use appropriate tools. Typical installation steps for a competent mechanic:

• Always disconnect the negative battery terminal before starting work to prevent electrical damage and airbag/ECU faults.
• Raise the vehicle and remove wheel(s) or undertray as needed to access the brake master cylinder area where the ABS/ESP unit is mounted.
• Carefully disconnect electrical connectors and label them if necessary. Disconnect brake lines with appropriate line wrenches; expect brake fluid loss.
• Remove mounting bolts and replace the unit as an assembly. If supplied, use the included wiring section to ensure correct connector positioning.
• After mechanical installation, bleed the brake system thoroughly (recommended: pressure or vacuum bleeding) to remove air from the ABS hydraulic circuit and brake lines.
• Clear fault codes and perform ABS/ESP initialization with a compatible diagnostic tool. Using PSA service tools (DiagBox/Lexia/PP2000) or a professional scanner will ensure proper adaptations and fault code removal.

Why This Part Most Often Fails

Common failure causes include:

• Corrosion and moisture ingress into electrical connectors or the hydraulic block, especially on older vehicles or in regions with road salt.
• Contaminated or degraded brake fluid causing internal valve or pump wear and contamination of manifolds.
• Electrical faults such as short circuits, damaged wiring or connector corrosion leading to intermittent operation or total loss of the controller.
• Mechanical wear of the pump motor or solenoid valves after years of service, often following high mileage or lack of maintenance.

Notes For Workshop Use

This unit is typically located next to the brake master cylinder and must be handled with care to avoid damage to brake lines and electrical connectors. After replacement, perform a full brake-test and road-test to verify ABS and ESP functionality under safe conditions. Keep brake fluid clean and follow manufacturer service intervals to prolong the life of the hydraulic block and pump.

Recommended Tools

• Basic metric hand tools and torque wrench
• Brake line wrenches and fluid catch container
• Brake bleeding kit (pressure or vacuum)
• Diagnostic scanner with ABS/ESP functions (DiagBox/PP2000/Lexia recommended for full adaptation)

The Bosch ABS ESP unit is a key part of the braking system of Citroën and Peugeot cars. It ensures the proper functioning of the anti-lock braking system (ABS) and stabilization system (ESP), which significantly increases driving safety, car stability and shortens the braking distance, especially on slippery or uneven surfaces.

This particular part is particularly suitable for Citroën C4 and Peugeot 307 cars and is often searched for by the product numbers listed below. A piece of wiring is also included, which can facilitate assembly and possible repairs to the original installation.

Technical information:
Manufacturer: Bosch / PSA
Model: ABS/ESP control module and pump (ABS ESP cube) for Citroën C4, Peugeot 307

Product codes (PSA):
9665915780
4541FV
4541FW
9661887180

Other numbers (Bosch / others):
0265950963
0265230291
1682607080

Uses and Functions:
– Ensures brake pressure regulation in the event of wheel lock-up (ABS)
– Participates in stabilizing the car in emergency situations (ESP)
– Contributes to a safer and more secure behavior of the car during braking and evasive maneuvers
– Suitable as a replacement for a faulty unit when ABS/ESP warning lights or error messages on the instrument panel are lit

Installation recommendations:
– Carry out assembly with the battery disconnected to avoid damaging the electronics.
– Before removing the old part, mark and photograph the arrangement of the brake pipes and connectors so that the connection is identical.
– Work in a clean environment, prevent dirt from entering the brake circuits.
– After installation, it is necessary to ventilate the system thoroughly and check the tightness of all connections.
– It is recommended to carry out diagnostics and possible calibration/bleeding of the ABS via a diagnostic tool according to the vehicle manufacturer’s procedure.
– After installation, perform a test drive in safe conditions and verify that the ABS/ESP warning lights are off and the system is working properly.

This part is suitable for auto mechanics and skilled home repairers who are looking for a specific Bosch ABS/ESP unit according to the original codes and want to reliably restore the function of the braking and stabilization system of their car.

This ABS module is specifically engineered for Citroën C4 and Peugeot 307 models, ensuring seamless compatibility and performance. The ABS system plays a crucial role in vehicle safety by preventing wheel lock-up during braking, which enhances driver control and stability on the road. Replacing a faulty or aging ABS control unit with this genuine Bosch part can significantly improve braking efficiency and increase overall driving safety.

Technical Information
Manufacturer: Bosch
Model: Citroën C4, Peugeot 307
Product Codes: 9663345480, 0265800406, 0265231508, 9661886780, 4541Q1, 4541Q2, 1680903280, 1680903380
Additional Numbers: As listed above

The ABS control module and pump are known to wear out over time due to general use and exposure to harsh driving conditions. Common signs of failure include warning lights on the dashboard or reduced braking performance. Timely replacement restores the functionality of the ABS, preventing wheel lock and maintaining safe braking distances under various road conditions.

Designed for professional mechanics and car enthusiasts who perform their own repairs, this Bosch ABS control unit promises durability and precise fit, helping extend the life and safety of your Citroën C4 or Peugeot 307. Invest in quality replacement parts to ensure your braking system operates reliably every time you drive.

Add this indispensable ABS control module and pump to your cart today and secure the safety and longevity of your vehicle with trusted Bosch technology.

This ABS ESP Control Module manufactured by BOSCH is designed specifically for the Peugeot 307, ensuring enhanced braking performance and vehicle stability. The unit integrates both the ABS pump and ESP functionality, working together to prevent wheel lockup and improve traction control under various driving conditions. It comes equipped with a section of wiring harness for easier installation.

Function and Importance

The ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) control module plays a crucial role in automotive safety by regulating braking pressure to maintain traction and prevent skidding. Over time, these modules can fail due to electrical faults, corrosion, or internal wear, which may lead to warning lights on the dashboard or impaired brake performance. Replacing a faulty ABS ESP module is vital to restore proper function and maintain safe driving conditions.

Applicable Models

This part is suitable for various Peugeot 307 models equipped with Bosch ABS/ESP systems. It is commonly found under the product codes 9661740280 and 0265950374, making it easy to locate by part number searches.

Installation Notes

Replacing this module typically involves disconnecting the battery, removing the old ABS ESP unit along with its wiring connectors, and fitting the new unit in place. Professional diagnostic tools may be required to reset the system and clear any fault codes after installation. It is advised to follow specific repair manuals or consult a qualified mechanic during replacement.

Technical Information

• Manufacturer: BOSCH
• Model: Peugeot 307
• Product Codes: 9661740280, 0265950374
• Additional Numbers: 9649988180, 0265234153, 4541J3 NFP

Discover a reliable Bosch ABS and ESP module designed specifically for the Citroën C4. This essential unit, identified by product codes 9657352680, 0265950370, and 4541E4, includes an integrated ABS pump and a piece of wiring harness to facilitate straightforward installation. Ideal for automotive professionals and DIY enthusiasts alike, this module plays a crucial role in maintaining your vehicle’s braking efficiency and stability control.

The ABS (Anti-lock Braking System) module prevents wheel lock-up during emergency braking, maintaining traction and steering control. Paired with the ESP (Electronic Stability Program) unit, it helps stabilize the vehicle by correcting oversteer or understeer in critical driving situations. Together, they significantly enhance driving safety by reducing the risk of skidding and improving overall vehicle handling.

This Bosch module is compatible with various model years of the Citroën C4 that support these specifications. Typically, ABS and ESP modules require replacement due to wear over time or damage resulting from normal vehicle operation. Replacing this unit can restore original braking performance and safety features, ensuring your vehicle complies with manufacturer standards.

Installation is straightforward thanks to the included wiring harness section, allowing quicker connection to the existing vehicle systems. Maintain optimal braking safety and vehicle control by fitting this high-quality Bosch ABS and ESP module on your Citroën C4 without delay.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C4
• Product Codes: 9657352680, 0265950370, 4541E4
• Additional Numbers: NFP

This module combines both the ABS pump and electronic control unit, ensuring precise modulation of brake pressure based on real-time wheel speed data. It is typically installed within the engine bay and connected via a wiring harness supplied with the unit, facilitating direct plug-and-play replacement.

ABS components like this Bosch module are prone to wear over time due to continuous exposure to heat, vibration, and moisture, which can cause sensor malfunctions or pump failure. Replacing a faulty ABS module promptly ensures continued reliable braking performance and maintains vehicle safety standards.

Technical Information

• Manufacturer: Bosch
• Model(s): Peugeot 307
• Product Codes: 0265800390, 9651873780
• Additional Numbers: 4541T3, 4541T4

This used ABS/ESP control module and hydraulic pump from Bosch is a direct-fit replacement for Peugeot 307 models and is frequently referenced by part numbers 9649458080 / 0265950368 and factory codes 4541T9, 4541V0. The unit controls anti-lock braking (ABS) and electronic stability program (ESP) functions by modulating brake pressure via the integrated pump and valve block. Ideal for professional workshops and experienced DIY mechanics searching by part number, this module restores ABS/ESP functionality when the original unit shows faults or warning lights.

How It Works

The module integrates an electronic control unit (ECU) with a hydraulic pump and valve block. Wheel speed sensors feed data to the ECU, which modulates hydraulic pressure through the valve block and pump to prevent wheel lockup and to support vehicle stability interventions. When the control electronics or pump fail, the vehicle will often indicate faults through the ABS/ESP warning lamp and may revert to reduced braking assistance.

Replacement Procedure

• Park Vehicle Safely And Secure On A Level Surface; Chock Wheels.
• Disconnect The Negative Battery Terminal Before Any Work To Prevent Short Circuits And Protect Electronics.
• Locate The ABS/ESP Unit (Usually In The Engine Bay Mounted To The Bulkhead Or Inner Wing On Peugeot 307).
• Depressurize The Brake System If Necessary, Then Disconnect Electrical Connectors And Brake Lines From The Module (Use Correct Fittings And Capture Brake Fluid).
• Unbolt The Module From Its Bracket; Transfer Any Required Brackets Or Brake Line Adapters From The Old Unit To The New Unit.
• Install The Replacement Unit, Reconnect Brake Lines And Electrical Connectors, Then Refill And Bleed The Brake System According To Manufacturer Procedure.
• Use A Diagnostic Tool To Clear Fault Codes And Perform Any Required Initialization Or Pump Priming Procedures; Verify That ABS/ESP Warning Lights Remain Off During Road Test.

Installation Recommendations

Always follow safety procedures: disconnect the battery before removal, use correct torque values for hydraulic fittings, and avoid introducing air into the brake system. Replace brake fluid if contaminated and bleed the system thoroughly after installation. Verify electrical connector contacts for corrosion and ensure secure mounting to prevent vibration-related damage. After fitting, perform a full diagnostic scan and a road test to confirm proper ABS/ESP operation.

Most Common Failure Reasons

ABS/ESP modules on Peugeot 307 commonly fail due to moisture ingress and corrosion of electrical connectors or internal valve block components, electrical faults from wiring harness damage, or wear of the pump motor. Contaminated brake fluid and long-term exposure to road salt accelerate hydraulic block degradation. Symptoms include illuminated ABS/ESP warning lamp, intermittent faults, reduced braking assistance, or activation of traction control faults.

Technical Information

• Manufacturer: Bosch
• Model: Peugeot 307
• Product Codes: 9649458080, 0265950368
• Other Numbers: 4541T9, 4541V0, 265950368

Notes For Professionals And DIYers

Part numbers 9649458080 and 0265950368 are commonly used to identify this ABS/ESP module — searching by these codes or Bosch reference improves findability. Because ABS systems interact with brake hydraulics and vehicle safety systems, installation is recommended for technicians or experienced DIYers familiar with brake-bleeding procedures and diagnostic tools. After replacement, perform a full diagnostic check and road test to ensure system integrity and fault clearance.

This ABS Bosch Control Module is designed specifically for Citroën C4 and Peugeot 307 vehicles, providing precise management of the anti-lock braking system. It includes the control unit and pump, along with a cable harness segment to facilitate installation. This module ensures the ABS system operates efficiently, maintaining vehicle stability and safety during braking, especially on slippery surfaces.

The control module plays a critical role in monitoring wheel speed sensors and modulating brake pressure to prevent wheel lock-up. Over time, the module may fail due to electrical faults, corrosion, or internal component wear, leading to ABS warning lights and compromised braking performance.

Professional mechanics and experienced DIYers will find this module a reliable replacement for restoring full ABS functionality. Installation typically involves removing the faulty unit, disconnecting electrical connectors and hydraulic lines, then fitting the new module with associated wiring. It is recommended to perform a diagnostic check and possibly bleed the brake system after replacement to ensure proper operation.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C4, Peugeot 307
• Product Codes: 9659457180, 0265800395, 4541J1
• Additional Numbers: 9649988280, 0265231486

This Bosch ABS/ESP control unit and pump is designed for Peugeot 307 CC models and is supplied with part of the wiring harness to simplify replacement. Frequently searched under product numbers, this unit combines the hydraulic pump, valve block and electronic controller for the Anti-Lock Braking System and Electronic Stability Program, making it a direct-fit solution for workshops and experienced DIYers who service Peugeot braking systems.

Technical Information

• Manufacturer: Bosch
• Model: Peugeot 307 CC (Compatibility With Other 307 Variants Possible)
• Product Codes: 0265950093
• Other Numbers: 4541W5, 4541W6, 265950093, NFP

Compatibility And Fitment

Primarily Intended For Peugeot 307 CC. May Fit Other Peugeot 307 Variants Equipped With ESP/ABS When Matching Product Codes. Many Customers Search By Product Number (0265950093, 4541W5, 4541W6), So Verify Code Match Before Installation.

Function And What The Part Does

The Unit Controls The Anti‑Lock Braking System And The Electronic Stability Program. It Monitors Wheel Speed Sensors And Modulates Brake Pressure Via The Hydraulic Pump And Valve Block To Prevent Wheel Lock Up During Braking And To Improve Vehicle Stability In Slip Conditions. The Electronic Controller Interprets Sensor Signals And Operates The Pump And Solenoids As Required.

Replacement And Installation

General Replacement Steps (For Experienced Technicians And Competent DIYers):

• Park Vehicle Securely On A Level Surface And Isolate The Battery Before Starting Work.
• Record Existing Fault Codes And System Status With A Diagnostic Tool.
• Disconnect Electrical Connectors And Remove Any Retaining Brackets Or Covers.
• Carefully Disconnect Brake Lines From The Hydraulic Unit—Prepare To Catch Fluid And Avoid Contamination.
• Remove Old Unit And Install Replacement; Reconnect Brake Lines And Wiring Harness.
• Refill Brake Fluid And Perform A Thorough Brake Bleeding Procedure To Remove Air From The System.
• Use A Manufacturer‑Compatible Diagnostic Tool To Clear Codes, Run Brake Bleed Procedures, And Perform Any Required Coding/Matching Of The New Module To The Vehicle (e.g., PSA/Diagbox Or Equivalent).

Installation Recommendations

• Use Proper Tools And A Suitable Diagnostic Interface Capable Of Performing Module Coding And ESP Calibration.
• Inspect Electrical Connectors And Wiring For Corrosion Or Damage; Repair Or Replace As Needed.
• Replace Brake Fluid After Service And Follow The Manufacturer‑Recommended Bleeding Sequence.
• Protect The Unit From Moisture During Installation And Ensure Tight, Leak‑Free Brake Line Connections.
• Verify System Operation With A Road Test And Diagnostic Scan To Confirm No Active Faults Remain.

Why The Part Most Often Fails

Common Failure Causes Include Corrosion And Moisture Ingress Affecting The Hydraulic Block Or Electronics, Pump Motor Wear, Valve Or Solenoid Malfunctions, And Electrical Problems Such As Damaged Connectors Or Wiring Harness Issues. Heat Cycling And Age Can Also Degrade Internal Electronic Components Over Time.

Additional Notes

This Part Is Frequently Searched By Product Number, So Use The Codes Listed In The Technical Information To Match Fitment. Proper Coding And Bleeding Are Critical After Replacement To Restore Full ABS/ESP Functionality.

Professional Bosch ABS/ESP control module supplied with a section of wiring harness, suitable for PSA models Citroën C4 and Peugeot 307. This unit houses the hydraulic pump and electronic control that manage anti-lock braking and electronic stability functions. Customers frequently search by the original product numbers for fast identification and correct fitment.

Key Features

• Complete Bosch ABS/ESP control module combined with a piece of wiring harness for direct connection.
• Direct fit for specified Citroën and Peugeot models; replacement part for vehicles using the listed part numbers.
• Preserves ABS and ESP functionality including wheel speed sensing, pump activation and modulator control.

Compatibility

Fits: Citroën C4, Peugeot 307. Commonly referenced by product codes and OEM numbers listed below for correct matching.

Function And Common Symptoms

The ABS/ESP control module monitors wheel speed sensors and modulates hydraulic pressure via the integrated pump and valves to prevent wheel lock and to support vehicle stability control. Typical failure symptoms include illuminated ABS/ESP warning lights, audible pump running continuously, reduced braking performance under lock-prone conditions, intermittent loss of traction control or fault codes stored in the vehicle diagnostics.

Replacement And Installation Notes

Installation should be performed by a qualified mechanic or an experienced DIYer comfortable with vehicle safety and brake systems. General steps:

• Disconnect the vehicle battery before starting to avoid electrical damage.
• Access the ABS unit (typically located in the engine bay near the brake master cylinder) and disconnect electrical connectors carefully.
• If hydraulic lines are disconnected during removal, prepare for controlled fluid drainage and ensure correct reconnection to avoid air ingress.
• After fitting, bleed the brake system according to manufacturer procedures and clear stored fault codes with an appropriate diagnostic tool.
• Note: The replacement unit may require diagnostic re-learning or coding to the vehicle's ECU to restore full ABS/ESP functionality. Confirm compatibility and programming requirements before installation.

Failure Causes And Service Life

Failures are commonly caused by corrosion, water ingress, electrical connector faults, or wear of the pump motor and internal valves. Environmental exposure and lack of maintenance accelerate deterioration. Service life varies with vehicle use and conditions; inspect connectors and wiring regularly to reduce premature failures.

Technical Information

Manufacturer: Bosch

Model: Citroën C4; Peugeot 307

Product Codes: 9663617980, 0265234396

Additional Numbers: 9649988180, 0265950517, 4541R3, 4541R4, 1682608180

Included: Section Of Wiring Harness (as pictured/described)

If you are unsure about fitment or programming needs, consult a workshop manual or a professional diagnostic service before purchase. Identification by product number ensures the best match for Citroën and Peugeot PSA vehicles.