Mazda CX-3 Tail Lights: Specs, Fitment & Common Faults
On the CX-3, a genuine Mazda technical bulletin explains light condensation as normal, with newer clear-lens models simply making it more visible.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — tail light (aftermarket) Van Wezel 2791931 / Diederichs 5645091
| Tail lights (aftermarket) | Van Wezel 2791931 (left, without bulb holder, to 2018, right-hand pair 2791932); Van Wezel 2717935 (left, LED, without bulb holder, outer section, right-hand pair 2717936); Diederichs 5645091 (left, without bulb holder, outer section); Diederichs 5645191 (left, LED, without bulb holder, outer section) |
|---|---|
| Genuine (OE) numbers quoted | None quoted in the catalogue listings — the genuine light varies by trim, bulb or LED type and facelift date, so order it against your VIN |
| Fitment notes | Left and right are separate parts; check LED or bulb type, whether the bulb holder is included, body style and facelift date before ordering. |
Confirmed: A Genuine Technical Bulletin Worth Knowing About — Mazda CX-3 Tail Lights
This is genuinely worth knowing if you're seeing light condensation: Mazda has a specific technical service bulletin explaining that condensation inside combination light units is a normal phenomenon, caused by a temperature difference between the inside and outside of the housing. This bulletin specifically notes that newer models fitted with a clear lens can make this normal condensation considerably more visible than on older models with a coloured lens.
It's also genuinely worth knowing that all four light units showing water simultaneously points away from four separate light failures and toward a failed rear window seal or boot weatherstripping instead.
Mazda CX-3 Tail Lights: More Wiring Behind There Than Most People Assume
The Mazda CX-3's tail lights pack brake, indicator, reversing and rear fog functions into a single unit, so a fault in the wiring or housing can affect several of them simultaneously — meaning "the tail light's broken" could describe quite different underlying problems.
Mazda CX-3 Tail Lights: Watch: Replacing It
Mazda CX-3 Tail Lights: What It Does
Beyond basic rear visibility, tail light units on the CX-3 typically integrate brake lights, indicators, reversing lights and rear fog lights into a single housing. Higher trims may use LED units with a distinct light signature, which are not interchangeable with standard halogen units even if the physical mounting looks similar.
Fitment & Compatibility
Mazda CX-3 Tail Lights: Generations & Tail Light Type
| Standard trims | Halogen bulb-based units as standard |
|---|---|
| Higher trims, later model years | LED tail lights become available further up the range, genuinely a different assembly and connector from the halogen units on lower trims |
Tail light design changed between generations of the CX-3, and facelifted versions within the same generation often use a revised light signature that isn't interchangeable with pre-facelift units. Always confirm the exact part for your specific model year before ordering. Whether you're sourcing a replacement tail lights for your Mazda CX-3 from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.
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Mazda CX-3 Tail Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Tail Lights Guide for diagnosing which circuit has failed, how easy this job is to DIY, and aftermarket advice.
More Mazda Tail Lights
The same part, covered across other Mazda models.