Description
Product Overview
High-quality ABS/ESP control unit designed for Citroën Xsara Picasso models. This Bosch-manufactured hydraulic and electronic module integrates the ABS pump, modulator and ECU to manage braking pressure and vehicle stability. Frequently searched by product codes 0265950072 and 4541C8, it is a common replacement part for PSA group vehicles.
Features & Function
The ABS/ESP unit prevents wheel lock-up during braking and supports electronic stability control interventions. It monitors wheel speed sensors and controls hydraulic valves via an electric pump and electronic control logic to modulate brake pressure on individual wheels for safety and stability.
Common Faults And Lifespan
Typical failure causes include electrical faults, corrosion, water ingress, worn pump motor or internal valve faults. Lifespan varies with use and environment; units commonly require replacement after around 10–15 years or sooner if exposed to contamination, collision damage or persistent moisture.
Replacement & Installation
Overview for mechanics and experienced DIYers: diagnose the fault with an OBD/ABS scanner, disconnect the vehicle battery, safely lift the vehicle and remove protective covers to access the unit. Unplug electrical connectors and unbolt the module; remove brake lines carefully to contain fluid. Install the replacement unit, refill and bleed the brake system, and perform ECU coding/initialization with a diagnostic tool. Because this work involves brake hydraulics and electronic coding, professional installation is recommended if you are not experienced.
Compatibility
Direct fit for Citroën Xsara Picasso models within the PSA group that use part numbers 0265950072 / 265950072 and reference 4541C8. Always verify the part number, connector type and ABS module appearance before purchasing to ensure compatibility.
Technical Information
Manufacturer: Bosch
Model: Citroën Xsara Picasso (PSA Group)
Product Codes: 0265950072, 265950072
Additional Numbers: 4541C8
