Description
Brake pipe to ABS-ESP module for Citroën and Peugeot vehicles.
This high-quality brake pipe is designed to connect the ABS/ESP hydraulic module to the wheel brake circuits on select Citroën and Peugeot models. It provides a direct replacement for worn or damaged original lines, restoring safe braking performance and proper ABS/ESP function. Technically accurate fitment and OEM-style connections make this part suitable for professional workshops and DIY mechanics who need a reliable solution quickly. Customers frequently search by product codes 4887T0 and 4887T1 when looking for this component.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4, Peugeot 307 (select variants equipped with ABS/ESP module)
- Product Codes: 4887T0, 4887T1
- Other Numbers: NFP
Replacement Procedure
- Raise and safely support the vehicle on stands. Work only on a stable, level surface.
- Remove the wheel and any necessary covers to access the ABS/ESP module and the affected brake line.
- Clamp off or isolate the brake circuit if required to limit fluid loss, then loosen the hydraulic fittings at both ends of the pipe. Have a suitable container ready to catch brake fluid.
- Remove any retaining clips or brackets and extract the old pipe. Compare new and old parts for identical routing and fittings before installation.
- Install the new pipe, secure all clips and brackets, and tighten fittings to the manufacturer’s torque specification.
- Bleed the brake system thoroughly to remove air from the circuit. Use the manufacturer-specified bleeding sequence and brake fluid type.
- Check for leaks at all connections under pressure and perform a road test at low speed to verify ABS/ESP operation and braking performance.
Installation Recommendations
- Use New Sealing Components: Replace copper crush washers or seals at flare unions where applicable.
- Brake Fluid: Use manufacturer-specified brake fluid (many PSA vehicles use DOT4); avoid mixing incompatible fluids.
- Torque And Routing: Tighten fittings to the OEM torque values and follow original routing to prevent chafing and vibration.
- Clean Work Area: Keep contaminants away from the hydraulic system; cap open lines to prevent dirt ingress.
- Final Check: After installation and bleeding, inspect for leaks and proper ABS/ESP warning lamp behavior.
Why This Part Fails Most Often
- Corrosion From Road Salt: External corrosion on metal lines and fittings is the most common cause of failure, especially in regions with salted roads.
- Mechanical Damage: Impact from debris, curbs, or improper lifting can dent or kink pipes, leading to leaks or restricted flow.
- Vibration And Fatigue: Repeated movement at mounting points or poor routing can cause cracking at bends or near fittings.
- Leaking Connections: Worn or damaged flare fittings, seals, or crushed washers at unions can cause slow leaks that degrade braking performance.
This replacement brake pipe is intended for technicians and experienced DIY mechanics who need a direct-fit solution to restore hydraulic integrity to the ABS/ESP circuit on supported Citroën and Peugeot models. Always follow vehicle manufacturer service procedures and safety practices when performing brake system repairs.
