BMW X3 Tail Lights: Specs, Fitment & Common Faults

On the X3, an official BMW bulletin covering related models genuinely confirms taillights use waterproof membrane technology allowing natural condensation to escape.

Generation covered: this guide is for the third-generation X3 (G01, 2018–present), with particular focus on 2018–2023 registered examples now old enough for parts to be a common search. Check your logbook or VIN if you're unsure which generation you have.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident BMW X3 tail lights part number at the time of writing. Please confirm the correct part via a BMW 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 X3 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 X3, 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 BMW X3 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.

A Genuinely Useful Piece of Context Worth Knowing About Condensation — BMW X3 Tail Lights

If condensation has appeared inside a tail light, this is genuinely worth knowing: an official BMW service bulletin covering related models confirms these tail lights use waterproof membrane technology, deliberately allowing naturally occurring condensation and air to escape without letting excess water or dirt enter.

A genuinely useful diagnostic clue worth knowing: light condensation is genuinely fine if it disappears after using the light for around 30 minutes. Actual water droplets that don't clear this way are not normal.

It's also genuinely worth knowing that confirmed recalls exist covering related BMW models from earlier eras addressing corrosion-related electrical faults affecting the rear lighting circuits, worth checking your specific VIN against the official recall register.

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 BMW Tail Lights

The same part, covered across other BMW models.

BMW X3 Tail Lights: Specs, Fitment & Common Faults

OEM Part Numbers

Shop for This Part on eBay

A Genuinely Useful Piece of Context Worth Knowing About Condensation — BMW X3 Tail Lights