High-quality Valeo COM2003 stalk switch assembly designed for Citroën C5 II and Peugeot 407 vehicles. This multifunction stalk controls essential convenience and safety features — fog lights, onboard computer functions, rear wiper operation, rain sensor activation and the ESP control input. Ideal for professional garages and experienced DIY mechanics who search by part numbers such as 96496662XT, 6242S5 or 6239JQ.

Why Choose This Part

Used Valeo COM2003 stalks are a cost-effective replacement when the original switches show wear or intermittent operation. Because the unit is sourced from a working vehicle, it retains the original connectors and mechanical fitment, ensuring straightforward installation while keeping replacement costs lower than new aftermarket alternatives.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C5 II, Peugeot 407
• Product Codes: 96496662XT, 6242S5, 6239JQ
• Other Numbers: COM2003

Installation Recommendations

Before starting work always disconnect the battery and follow the vehicle manufacturer’s service procedure. Typical replacement steps:

• Disconnect the negative battery terminal to prevent short circuits and airbag deployment.
• Remove the steering wheel airbag module according to the manufacturer’s instructions and store it safely.
• Remove steering column trim panels to access the stalk assembly screws and electrical connectors.
• Unplug the electrical connectors carefully and release any retaining clips — avoid pulling on wires.
• Replace the stalk assembly, reconnect connectors, reassemble trim and reinstall the airbag and steering wheel.
• Reconnect the battery and verify all functions: wipers, fog lights, trip computer inputs, rain sensor response and ESP switching.

Use correct tools and take care with the clock spring (spiral cable) when removing the steering wheel. If unsure, have the replacement performed by a trained technician.

Most Common Failure Causes

• Mechanical Wear: Frequent use of stalk switches causes internal contacts and levers to wear, resulting in loose or intermittent feel.
• Contact Oxidation: Moisture ingress or aging can cause corrosion on electrical contacts, leading to unreliable operation of functions like fog lights or wipers.
• Physical Damage: Impact or forceful handling during previous repairs can break plastic levers or internal components.
• Wiring And Connector Issues: Damaged wiring or poor connector seating can mimic switch failure; always inspect harnesses when diagnosing.

Practical Notes For Mechanics And DIYers

Search and order by OEM codes (96496662XT / 6242S5 / 6239JQ / COM2003) to find the correct unit quickly. Because this is a used assembly, expect some cosmetic wear and slightly reduced stiffness compared with new parts; however, electrical functionality is retained. After installation, verify all controlled systems and ensure the rain sensor and ESP inputs respond as expected.

Compatibility And Fitment

Intended for Citroën C5 II and Peugeot 407 models that use the Valeo COM2003 stalk module. Confirm the part numbers against the existing unit on the vehicle before replacing to ensure correct fitment.

Multifunction steering column stalk (Valeo COM2003) designed for vehicles equipped with electronic stability control (ESP). The module integrates control for exterior fog lights, the on-board trip computer, rear wiper operation, rain sensor input and ESP-related commands. Manufactured by Valeo and commonly fitted on Citroën C5 II and Peugeot 407 platforms, this unit is frequently replaced by workshops and DIY enthusiasts when stalk functions become intermittent or mechanically loose.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C5 II, Peugeot 407
• Product Codes: 96611302XT, 96496662XT, 96592426XT
• Other Numbers: 6242S5, 6239JQ, COM2003

Installation Recommendations

Always disconnect the vehicle battery before starting to avoid short circuits and accidental airbag deployment. Follow the vehicle manufacturer’s procedure for steering wheel and airbag removal. Handle connectors and ribbon cables carefully to avoid damage. After installation, verify all functions (lights, wipers, rain sensor input, trip computer responses and ESP indicators) on the vehicle diagnostic or by direct operation. If the vehicle displays fault codes, clear them and re-check functionality.

Replacement Procedure

1. Disconnect the negative battery terminal and wait at least 10 minutes for residual power to dissipate.
2. Remove the steering wheel airbag following the manufacturer’s safety instructions.
3. Unscrew and remove the steering wheel (mark orientation for correct reassembly).
4. Remove upper and lower steering column covers to access the stalk assembly.
5. Disconnect electrical connectors and release retaining clips securing the stalk module.
6. Install the replacement stalk, reconnect connectors, reassemble covers and steering wheel in reverse order.
7. Reconnect battery and verify all stalk functions and warning lights. Reset any stored faults if necessary.

Common Failure Reasons

• Wear Of Internal Contacts: Frequent use of switches and rotary controls causes contact wear and intermittent signals.
• Moisture And Corrosion: Water ingress or condensation can corrode contacts or connectors, especially in older cars.
• Mechanical Damage: Rough handling during steering wheel/airbag removal or impact damage can break plastic levers or internal mounts.
• Electrical Faults: Short circuits or connector faults can cause partial function loss (e.g., only one wiper speed or fog light command missing).

Lifespan And Maintenance

There is no fixed replacement interval. Failures typically appear after many years of service or at high mileage. Regular inspection and careful handling during steering work extend service life. If controls become sticky, intermittent or mechanically loose, replacement is recommended to restore reliable operation.

Notes For Mechanics And DIYers

The part is often searched by the product codes listed above — entering these numbers in catalogues or search engines increases the chance of finding the correct unit quickly. Because this is a used part, expect minor signs of wear; functionality should be verified immediately after fitment.