High-quality Valeo steering column stalk assembly designed for Citroën C4 first generation and C4 Picasso/Grand Picasso models. This multifunction stalk unit operates fog lights, front and rear wipers, the rain/wiper sensor and the on-board computer functions. Ideal for professional workshops and skilled DIYers seeking a direct replacement using OEM-equivalent part numbers. Commonly searched by product codes, the listing increases findability for mechanics and car owners repairing electrical controls behind the steering wheel.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C4 I; Citroën C4 Picasso; Citroën C4 Grand Picasso
• Product Codes: 96644965XT, 6242HL, 624348
• Additional Numbers: NFP

Function

This multifunction stalk controls the vehicle’s fog lights, front and rear windscreen wipers, interfaces with the rain/wiper sensor and cycles information on the on-board computer. It replaces the left/right stalk assembly that houses the switches and electrical contacts used for these functions.

Compatibility

Designed for Citroën C4 (first generation) and both C4 Picasso and C4 Grand Picasso models that use the Valeo-style steering column stalk assembly. Always verify the part numbers listed in the Technical Information against the unit removed from the vehicle to ensure correct fitment.

Replacement Procedure

• Disconnect the battery before starting work to avoid short circuits and airbag deployment.
• Remove the steering wheel trim and airbag (follow manufacturer safety steps) if necessary to access the column shrouds.
• Unscrew and remove the upper and lower steering column covers to expose the stalk assembly.
• Disconnect electrical connectors from the stalk unit and remove any retaining screws or clips.
• Install the new stalk, secure fasteners, reconnect connectors and reassemble the column covers and steering wheel components.
• Reconnect the battery and verify all functions: fog lights, front/rear wipers, rain sensor input and on-board computer controls.

Installation Recommendations

• Inspect connector pins and harness for corrosion or damaged insulation; repair as required before installation.
• Use appropriate torque and follow airbag handling procedures when removing/reinstalling the steering wheel or airbag module.
• Test all functions with the ignition on and run through wiper cycles and fog light activation to confirm proper operation.
• If intermittent faults persist after replacement, check related fuses, grounds and wiring continuity with a multimeter.

Most Common Failure Causes

• Wear of internal contacts from frequent use leading to intermittent or non-functioning switches.
• Moisture ingress or corrosion affecting connectors and printed circuit traces inside the stalk.
• Mechanical damage to plastic levers or retaining clips during operation or removal.
• Faulty wiper sensor signals or connector problems that mimic stalk failures.

Notes for Mechanics and DIYers

This part is suitable for professional fitment or experienced DIY technicians familiar with steering column disassembly. Diagnostics should include checking fuses, connector condition and wiring continuity before replacing the stalk assembly to avoid unnecessary part changes. Searching by the listed product codes (96644965XT, 6242HL, 624348) will help locate the correct replacement quickly.

This used Valeo steering column stalk assembly is a direct-fit control unit for multiple Citroën C4 family models and is frequently sought by part numbers 96621668XT, 6242HL and 624348. Designed for mechanics and experienced DIYers, the switch provides reliable control of lighting and wiper functions from the steering column. Listing the OE codes in the product title increases visibility in searches and helps quickly match the correct replacement part for routine repairs or restorations.

Technical Information

• Manufacturer: Valeo (Stellantis Citroën/Peugeot Applications)
• Model: Citroën C4, Citroën C4 Picasso, Citroën C4 Grand Picasso
• Product Codes: 96621668XT, 6242HL
• Other Numbers: 624348, NFP

Function And Fitment

The stalk switches mount on the steering column and control multiple vehicle functions: front and rear windscreen wipers, intermittent and continuous wipe settings, rain/wiper sensor input, front and rear fog lights, and inputs to the onboard trip/computer. Fitment is specific to the C4 range listed above; many customers search directly using OE codes when looking for this part.

Installation

Recommended For: Experienced Mechanics And Competent DIYers.

• Safety First: Disconnect the vehicle battery and wait a few minutes before starting work to avoid accidental airbag deployment or electrical damage.
• Remove Steering Column Trim: Remove the upper and lower steering column covers to access the stalk assembly. This usually requires removing several retaining screws and gently unclipping the halves.
• Unplug Electrical Connectors: Carefully release the wiring connectors from the stalk unit. Inspect connectors and terminals for corrosion or damage.
• Replace The Stalk: Remove mounting screws or clips, fit the replacement stalk, reconnect the electrical connectors, and reassemble the column trim.
• Function Check: Reconnect the battery and verify all functions (wipers, intermittent settings, rain sensor response, fog lights, trip computer inputs) before final road test.

Installation Recommendations

Work Around The Airbag: Be aware of the proximity to the steering wheel airbag. If removal of the steering wheel or airbag is required for access, follow manufacturer procedures or have the job carried out by a qualified technician. When reassembling, ensure connectors are seated and clips are secure to avoid rattles or intermittent faults.

Why This Part Typically Fails

• Mechanical Wear: Frequent use causes internal switch contacts and detents to wear, leading to intermittent or non‑functional positions.
• Moisture And Corrosion: Water ingress or humidity can corrode internal contacts and connector pins, especially in older vehicles.
• Physical Damage: Broken stalk lever or cracked plastic from impact or rough handling.
• Electrical Contact Faults: Dirty or oxidised contacts inside the unit produce flickering or total loss of function for wipers, lights or sensor signals.

Tips For Service

• Always verify the OE codes (96621668XT / 6242HL / 624348) when sourcing a replacement to ensure compatibility.
• Inspect Wiring And Grounds: Check the column wiring harness and grounds for corrosion or loose connections when diagnosing intermittent faults.
• Keep Spare Fasteners: Retain small screws and clips during disassembly to ensure correct reassembly of the column trim.
• Test All Functions Before Driving: Confirm wiper park, intermittent settings, rain sensor activation and fog light operation after installation.

Part numbers in this listing are commonly used search terms—entering 96621668XT, 6242HL or 624348 will help you find the correct steering column stalk for Citroën C4, C4 Picasso and C4 Grand Picasso models.

Product Overview

This steering column stalk assembly from Valeo is designed for Citroën C4 models and provides reliable control of exterior lighting and wiper functions. It is a direct-fit component commonly referenced by part numbers and used by professional workshops and DIY mechanics for quick replacement of worn or faulty stalks.

Key Functions

• Control of front and rear windscreen wipers and intermittent wipe functions.
• Activation and switching of front fog lights (where fitted).
• Integration with rain/wiper sensor for automatic wiping (on equipped vehicles).
• Controls and toggles for the vehicle onboard computer / multifunction display.

Technical Information

• Manufacturer: Valeo / Stellantis (Citroën / Peugeot)
• Model: Citroën C4 I, C4 Picasso, C4 Grand Picasso
• Product Codes: 96656018XT, 6242HL, 624348
• Additional Numbers: NFP

Installation Recommendations

Recommended for installation by a qualified mechanic or experienced DIYer. Typical replacement steps:

• Disconnect the negative battery terminal before starting work to avoid short circuits and accidental airbag deployment.
• Remove the steering column lower and upper trim panels to access the stalk assembly.
• Unplug the electrical connector(s) with the locking tab released and remove the retaining screws/clips holding the stalk in place.
• Fit the new stalk, secure fasteners to the original positions and reconnect the electrical connector ensuring a positive lock.
• Reassemble trims, reconnect the battery and verify all functions (wipers, fog lights, rain sensor, onboard computer controls).

Allow 30–90 minutes for replacement depending on experience and vehicle trim level. Use manufacturer-recommended tools and take care with airbag-related components and steering position.

Why It Fails Most Often

• Wear of internal electrical contacts from frequent use (intermittent connections, erratic functions).
• Ingress of moisture or corrosion affecting connectors and switch contacts.
• Mechanical damage from impact or excessive force (broken lever or mounting clips).
• Electrical faults such as short circuits or wiring harness damage causing loss of function.

Compatibility And Fitment

Fits first-generation Citroën C4 variants and the C4 Picasso / Grand Picasso models as indicated. Always verify the listed product codes (96656018XT, 6242HL, 624348) against the vehicle’s existing part to confirm fitment.