Citroen C4 Cactus Headlights: Specs, Fitment & Common Faults

Bulb type, unit part numbers, and the faults that actually cause that flickering or dim light you've noticed.

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OEM Part Number: confirm via VIN — aftermarket LH Valeo 450558 / RH Valeo 450559

Accuracy note: Covers the Citroen C4 Cactus (2014-2020) as listed in the UK aftermarket catalogues. Headlights are sold by side (passenger / nearside = LH, driver's / offside = RH on a UK car) and by lamp type — halogen, xenon (D1S / D3S) and LED or full-LED units are not interchangeable, and DRL, cornering and levelling options change the part number again. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; genuine numbers are shown only where a listing quotes one. Check the lamp type and traffic side (UK right-hand-traffic units, not LHD) against your VIN, and expect xenon / LED and adaptive units to need levelling adjustment or coding after fitting.

Passenger side (LH / nearside) headlight — aftermarket	Valeo 450558 (halogen H7, LED functions listed, electric levelling); Van Wezel 0984961V (halogen H1/H7, electric levelling motor); Van Wezel 0959961V (halogen H7/H1); TYC 20-11256-05-2 (halogen H7/H1, orange indicator lens, electric levelling); Alkar 2741853 (halogen H7/H1, electric levelling motor); Magneti Marelli 712471901129 (halogen H7/H7)
Driver's side (RH / offside) headlight — aftermarket	Valeo 450559 (halogen H7 with PY21W, no DRL, electric levelling); Van Wezel 0984962V (halogen H1/H7, electric levelling motor); TYC 20-12943-05-2 (halogen H7/H1, with DRL and position light, electric levelling); Alkar 2742853 (halogen H7/H1, electric levelling motor); Magneti Marelli 712472201129 (halogen H7/H7); Abakus 552-1125RMLD-EM (halogen H7/H1, yellow indicator lens, electric levelling)
Bulb types	dipped H7, main beam H1, indicator PY21W, sidelight W5W, position light P21/5W
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine units against your VIN
Fitment notes	Every unit is halogen with electric levelling; the lower-mounted LED daytime running lights are a separate fitting, so the main headlight comes with or without a DRL function depending on the version; match the DRL and indicator lens version before ordering.

A Genuinely Important UK Rule Worth Knowing Before You Buy — Citroen C4 Cactus Headlights

If your C4 Cactus has factory-fitted halogen headlamp housings, converting them to fit LED bulbs is treated as a definite MOT failure under the current inspection manual — this isn't a grey area or a minor advisory, since a housing designed for halogen doesn't distribute an LED bulb's light output correctly, which can genuinely dazzle oncoming drivers. If you want a genuine LED upgrade, the correct route is a complete headlight unit designed for LED from the factory, not a bulb swap into an existing halogen housing.

Before you buy: matrix LED, adaptive, and cornering headlight systems often require electronic coding to the car after a unit swap, even for a genuine like-for-like replacement — a headlight that isn't recognised by the car's electronics can trigger warning lights or fail to auto-level correctly. Check whether your specific trim has one of these systems before assuming a straightforward bulb-in, bulb-out job.

Citroen C4 Cactus Headlights: Watch: Replacing It

🎬 Watch: Citroen C4 Cactus LED bulbs replacement

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Also Ht263dM_bhQ (Spanish, Cactus H7 dipped beam)

Citroen C4 Cactus Headlights reference plate

Citroen C4 Cactus Headlights: What It Does

On the Citroen C4 Cactus, the main and dipped beams, whether conventional bulbs or LED/matrix modules on higher trims, sit inside the headlight unit at an angle calculated to illuminate the road without dazzling other drivers. Many modern units also combine the daytime running light and indicator into that same housing, adding a layer of complexity to both part numbers and repairs.

Citroen C4 Cactus Headlights: Generations & Headlight Type

Standard trims	Halogen as standard, with LED daytime running lights and full LED options available on higher trims and more recent model years

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Citroen C4 Cactus Headlights: Common Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Headlights Guide for the four bulb technologies and how they differ, UK law on aim and modifications, common faults to check for, how difficult this job is to DIY, and confirming fitment against your VIN.

More Citroen Headlights

The same part, covered across other Citroen models.