High-quality Bosch kinetic ESP sensor designed as a direct-fit replacement for specific Citroën and Peugeot models. This sensor feeds the vehicle stability control (ESP/ABS) system with precise motion data so the control unit can detect and correct understeer, oversteer and other dynamic instabilities. Frequently searched by part number (for example 9649400180, 0265005291), the unit is suitable for professional workshops and experienced DIY mechanics who need a reliable, vehicle-specific component to restore correct ESP operation.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C4, Citroën C8 II, Peugeot 307 II, Peugeot 807 II
• Product Codes: 9649400180, 0265005291, 9811627180
• Additional Numbers: 454939, 454926, 0265005714, 265005291, 9663187680

Function

The kinetic ESP sensor measures vehicle motion parameters (longitudinal/lateral acceleration and dynamic movement used by the ESP/ABS systems). The ESC/ESP control unit uses these signals to compare actual vehicle behaviour with driver input and to command selective braking or torque reduction to maintain stability. Accurate sensor readings are essential for predictable electronic stability control performance.

Common Symptoms of Failure

• ESP/ABS warning lamps illuminated on the dashboard.
• Intermittent or permanent loss of traction/stability control interventions.
• Unexpected ABS or ESP activation during normal driving, especially in corners.
• Diagnostic fault codes related to sensor signal or communication errors.

Why This Part Fails Most Often

Typical causes of kinetic sensor failure include moisture ingress and connector corrosion, physical damage from impacts or road debris, wiring harness fatigue or chafing, and long-term exposure to vibration and heat. Electrical faults such as intermittent connectors or internal sensor electronics degradation are also common on higher-mileage vehicles.

Replacement Guide

Intended for mechanics and competent DIYers. Typical replacement steps:

• Safety first: Disconnect the negative battery terminal before starting work to avoid electrical damage or faults.
• Locate the sensor—on Citroën/Peugeot models it is commonly mounted near the ABS/ESP unit or under the dash/center console; consult the vehicle repair manual for exact location.
• Remove any trim or covers to access the sensor, unplug the electrical connector, and unbolt the sensor from its bracket.
• Install the new sensor, secure fasteners to the manufacturer’s recommended tightness, reconnect the wiring and reassemble trim.
• After replacement clear fault codes with a diagnostic tool and perform any required calibration or adaptation of the ESP/ABS system (see next section).
• Perform a road test in safe conditions to verify normal ESP/ABS behavior.

Installation Recommendations

• Use contact cleaner on electrical connectors if corroded and ensure secure, dry connections.
• Inspect the wiring harness and repair any damaged insulation or broken wires before installing the new sensor.
• Do not reuse a damaged sensor mounting bracket; ensure the sensor is mounted solidly to avoid vibration-related faults.
• Clear all related fault codes after installation and follow the vehicle manufacturer’s calibration/adaptation procedure for the ESP/ABS system using a suitable diagnostic tool.

Calibration And Diagnostics

Replacement often requires a diagnostic tool to clear related fault codes and, in many cases, to perform sensor calibration or adaptation so the ESP system accurately interprets the new sensor’s signals. If the vehicle reports persistent errors after replacement, check connector continuity, supply voltages and any related sensors (steering angle sensor, wheel speed sensors) that can influence ESP behaviour.

Compatibility And Part Number Search

This sensor is commonly listed under multiple OEM and supplier numbers—customers often search by the part number to confirm fitment. Main references include 9649400180 and 0265005291; additional cross-reference numbers are provided in the Technical Information above. Fitment applies to specified Citroën C4, Citroën C8 II, Peugeot 307 II and Peugeot 807 II applications.