this is weird, the brake light works (the top and bottom bulbs), the turn signal works (center bulb) and reverse works (bottom most bulb), but the running lights dont (the top and bottom bulbs), is not the bulbs because they work for brake (just turns on bighter).....the driver side is all good, but the problem is on the passenger side.....I dont see a fuse specific for this, what could be the problem? the wiring assembly and connector look fine, nothing burnt or damaged.....

 

Presuming an F series Cooper, since this is an F55/F56 forum section: LED or non-LED tail assemblies? On the stock LED tail lamp assembly of that vintage, the brake, turn, and reverse lights are (halogen) bulbs, but the running lamps are LED...

Also, any history of water intrusion on that side?

 

+1 thats what i was going to ask or maybe the footwell module is acting up. The FRM aka footwell module controls the lighting.

Does you lights look like this?

https://www.ecstuning.com/Search/Sit...h/63217255914/

 

@imrj you tagged your post as R56 but identified the vehicle as a 2015 Cooper S and posted in the F55/F56 forum. A 2015 Cooper S hardtop would indeed be an F55 or F56 rather than an R56. Sooooo... which one is it you've got?

If the taillights shown in @ECSTuning 's post above match, you have an R56 and an FRM as ECSTuning said, and your Cooper is not an F series.

If you have an F series, you do not have an FRM, you have a BDC, and the likelihood of specific scenarios changes (mainly because FRM scenarios get messy in specific ways really fast).

 

I have the same issue as above, all bulbs work however the passenger side tail light doesn't work. Did anyone find the solution?

 

If the issue is the same as @imrj described (brake works but running light, same bulb, does not), check to see whether the installed bulb is dual-filament. If it is, one filament (running light for example) can burn out while the other (brake for example) is still functional.

On the F56 the bulb spec is P21W, but that seems to get translated into both single and dual-filament product options out there, so figuring out whether the misbehaving bulb is single or dual-filament is probably a mandatory troubleshooting step (unless you installed the bulb yourself way back whenever and know exactly which one it is).

EDITED TO ADD: If you have a F series MINI and factory LED tail lamps, the running lights are LED, not bulbs, and are attached to the circuit board (though the brake lights are LED). One of the LEDs being out would be a different problem.

Hope this helps.