Description
Product Overview
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.
