Description
Electronic parking brake mechanism for Citroën C4 Picasso and Grand. Tested functional. Up to 2013.
Description
High-quality electric parking brake (EPB) mechanism compatible with Citroën C4 Picasso and Grand models produced up to 2013. The unit contains the motor-driven actuator and associated mechanical interface that applies and releases the parking brake electronically. Designed for professional workshops and experienced DIYers who perform brake repairs or module replacements. Commonly searched by part numbers 0204080070, 9681131680, 470220 and 470207.
Applications
- Fits: Citroën C4 Picasso (MPV)
- Fits: Citroën C4 Grand Picasso (MPV)
- Model Years: Up To 2013
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 Picasso, Citroën C4 Grand Picasso
- Product Codes: 0204080070, 9681131680, 470220
- Other Numbers: 470207
Function and Operation
The electronic parking brake mechanism converts an electrical signal from the vehicle control unit into a mechanical clamping force at the rear brakes. It replaces the traditional handbrake lever and provides automatic application/release and hill-hold functions where equipped. The EPB unit integrates a small electric motor, gearbox and mechanical linkage that actuates the brake caliper or a dedicated parking brake caliper.
Symptoms of Faulty Unit
- Parking brake warning light illuminated on the dash.
- Intermittent or permanent inability to apply or release the parking brake.
- Unusual noises from the rear axle during EPB activation.
- Self-test errors logged in the vehicle fault memory related to the EPB circuit or motor.
Why This Part Fails Most Often
Common failure causes include motor wear, internal gearbox damage, seized mechanical linkages, corrosion and water ingress at connectors, or electrical faults such as damaged wiring and connector corrosion. Mechanical stress from frequent use in stop-start urban driving and lack of lubrication can accelerate wear. Faults may also appear after hydraulic or suspension work if the unit is disturbed or incorrectly reinstalled.
Replacement Procedure (Overview)
Recommended for qualified technicians or experienced DIYers. Typical replacement steps:
- Park vehicle on a level surface and secure with axle stands where required.
- Disconnect the vehicle battery before starting work to avoid short circuits and electrical damage.
- Remove interior trim/center console pieces necessary to access the EPB actuator (if mounted inside the vehicle) or remove rear wheel / caliper components if the actuator is caliper-mounted.
- Carefully disconnect electrical connectors and detach the unit from its mountings.
- Install the new unit, secure all fasteners to the manufacturer’s torque settings, and reconnect connectors.
- Perform EPB calibration/initialization with an appropriate diagnostic tool to set travel limits and confirm proper operation.
Installation Recommendations
- Always Disconnect The Battery Before Removal/Installation And Follow Manufacturer Procedures To Prevent Damage.
- Inspect Wiring Harness And Connectors For Corrosion Or Damage; Replace Or Repair As Needed.
- After Mechanical Fitment, Use A Diagnostic Tool To Service/Calibrate The EPB System (Retract/Extend Cycle And Teach-In If Required).
- Replace Associated Wear Items If Necessary (Brake Pads, Rotors, Caliper Hardware) To Ensure Reliable Operation.
Notes For Mechanics And DIYers
This unit is frequently sought by part number — include the codes 0204080070, 9681131680, 470220 or 470207 when searching or ordering. Proper calibration after fitment is essential to avoid warning lights and to restore full functionality. If multiple faults are present, check rear caliper condition and the vehicle’s EPB wiring before replacing the unit.
Compatibility And Fitment Tips
Intended for Citroën C4 Picasso and Grand Picasso models up to 2013. Confirm fitment by cross-referencing the part numbers listed above with the vehicle’s parts catalogue. When in doubt, verify year and model variant to ensure correct application.
