Mitsubishi ASX Tail Lights: Specs, Fitment & Common Faults

On the ASX, tail light condensation should genuinely dissipate within about one hour of the lights being switched on, per official Mitsubishi campaigns on related models.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident Mitsubishi ASX tail lights part number at the time of writing. Please confirm the correct part via a Mitsubishi dealer or parts specialist using your VIN.

More Wiring Behind There Than Most People Assume

A tail light unit typically bundles several functions into one housing — brake light, indicator, reversing light and rear fog light — which means a single electrical fault can affect more than one function at once, and a "faulty tail light" can mean several genuinely different things.

Before you buy: tail light design and bulb type vary by trim and facelift status. Always confirm against your VIN before ordering.

What It Does

Beyond basic rear visibility, tail light units on the ASX 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

Tail light design changed between generations of the ASX, 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 Mitsubishi ASX 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.

Common Faults

What to Look For

One function out but others working — often a single blown bulb rather than a wiring fault, since multiple bulbs typically share one housing.
Condensation inside the lens — points to a failed seal, which can damage electrics if left untreated.
Flickering brake light — can indicate a failing bulb holder or a wiring connection issue.
Cracked lens from impact — usually straightforward to replace like-for-like, though LED units cost considerably more than halogen equivalents.

DIY Replacement Difficulty

Bulb replacement is usually an easy DIY job, typically accessed from inside the boot without needing tools. Full unit replacement is slightly more involved but still manageable at home on most versions, generally requiring removal of a few boot trim fasteners. Expect 10–20 minutes for a bulb swap, or up to 45 minutes for a full unit.

A Genuinely Useful, Official-Sourced Test Worth Knowing

This is genuinely worth knowing if you're seeing condensation in a tail light: Mitsubishi has run official service campaigns on related models addressing this exact issue, with a clear, objective test worth using yourself first — moisture inside the light should genuinely dissipate within about one hour after the lights have been switched on. If it doesn't clear within roughly that timeframe, this points toward moisture having penetrated the assembly due to a crack or a genuine manufacturing fault.

A genuinely important coverage distinction worth knowing: if the moisture is found to be due to a crack in the housing, replacement typically isn't covered and becomes the owner's responsibility, but if it's genuinely due to a manufacturing fault with the unit itself, replacement can be covered under an applicable campaign — worth asking a dealer directly which category applies.

It's also genuinely worth knowing an honest account worth bearing in mind: documented cases describe moisture returning to a tail light even after a covered replacement, sometimes years later — worth knowing that even a covered replacement doesn't necessarily guarantee the issue won't recur.

OEM vs. Aftermarket

For basic halogen units, reputable aftermarket tail lights are a reliable, cheaper alternative to OEM. For LED units with a distinctive light signature, OEM or high-quality aftermarket replicas are worth the extra cost to avoid a mismatched look between the two rear light clusters.

More Mitsubishi Tail Lights Guides

The same part, covered across other Mitsubishi models.