Curious if any other F54 owners have experienced this:

Got into my car this afternoon and started it, and saw a "Right Rear turn signal malfunction" on the dash. The right signals all hyperflash now, but what's odd is that all the signal lamps still appear to work correctly. I flip the turn indicator lever for the right side, and all three right exterior turn signals flash (although, at a very fast pace). I flip the turn indicator lever for a left hand turn, and all three left exterior turn signals flash (at normal speed). Front bulb, side marker, and rear light (the center of the marker on the club door) all light up in both cases. Mine is a 2019 F54-S.

I'll be taking it to the dealer as it should be under warranty, just curious if anybody else has seen this odd behavior on their car. I figure it's probably a CAN signaling error where the bulb is not responding correctly to the body controller. If so, gotta love technology eh?

 

Yes, I had this exact problem. They had to replace the rear light assembly in the bumper. It's apparently a known problem.

 

Wacky. I guess this happened on your 2016? Weird if it's still an issue several years later. Do you happen to remember if it was the right rear signal?

 

Yes, on the '16, and yes, it was the right side. I also had to replace the left side at one point earlier because I noticed that when the barn doors were open, the left side bumper light didn't always have the same brightness as the right.

In neither case was it the bulb ... in both cases it was a defective assembly.

 

I had this but mine was a left signal malfunction. I was told that the fix was that the plug was dirty and nothing needed to get replaced. wish I would have looked at that before I paid $160 for it to get fixed.

 

Finally had time to drop the car off for repair today. Yep, it was the rear tail light assembly. Dealer replaced the whole assembly under warranty. It does of course give me a little bit of pause: once the car is out of warranty I wonder what it would cost to replace the whole tail light assembly because of a bulb communication issue...sigh, gotta love the future.

 

Retail price for the assembly is about $100 per side, depending on vendor. Replacement is a 5-minute DIY.

 

That's a relief. I grabbed the work order and the broken part number was actually 63217352160 (which is the tail light that is seated in the bumper, not the one that mounts in the club door like I thought it would be). And yes you are correct, retail price is $100/side. I'm confused a little bit about the replaced part, since this light doesn't activate when you use the turn signal, at all -- the light for the turn signal is the one in the club door on both sides, on my car...weird that the lower light having a comms issue caused the hyperflashing. Oh, well...

 

It was the same on mine, and I had the same kind of confusion. Pretty sure there's a post here about it. But the deal is that if you open the barn doors and then run your flasher, then those lights in the bumper act as the flasher. It's all a complicated software system that makes it all work, of course, but the software determined that it wouldn't be able to use that backup-flasher-for-when-the-barn-door-is-open, so it lets you know there's an issue.

 

I just dropped mine off this morning for the same thing. Only difference was that I was getting a Brake Lamp Malfunction. Haven't had a brake light on the drivers side for a few weeks now. I wish they had made these LED like every other light on this car. My loaner is a brand new 2020 with the Union Jacks. Makes me jealous. lol

 

I had the same problem and never would have guessed that it was caused by the bumper-mounted brake light assembly if not for this thread. In my case I was able to remove the bumper light assembly and clean the electrical contacts where the bulbs are mounted, which were corroded enough to open the circuit. Also applied a little electrical grease to hopefully reduce future corrosion.
Thank you for saving me from an expensive shop visit!

 

has this problem bought a new bulb didn't fix the problem, dealer said I needed a entire new light assembly.

Spread out contacts on bulb holder fixed the problem

 

Totally just went through this.

First error - Left Rear brake malfunction - Brakes worked fine. Lights work fine. Ignored.
Second Error - Left Rear turn signal malfunction - Turn signal works fine. No burned out bulbs. Nothing but a left turn signal that blinked like a rabid rabbit at traffic lights.

Replace all bulbs. No help.

Cleaned all connections on bulbs. No help.

Replaced the entire bumper-mounted light assembly (one screw, one plug) and UREKA. Fixed. Ordered another one for the right side.

Not sure if everyone knows, but in the bumper-mounted assembly, there is a blinker as well. The outer light is the brake. The inner is the signal. Now, this signal ONLY works when the boot is open...not sure how many of us drive around with the boot open ... but hey, it can happen. I guess in the remote case you have that long load from the Home Depot.

74.00 USD online and the assembly comes with new bulbs and sockets.

Thanks for posting.

 

Where did you get the assembly? I paid that for a used one. My right assy was burning out bulbs.. Amazing they come with the bulbs - at $20/bulb that makes it a steal!

 

See above. On my car the assembly was part number 63217352160 , which can be ordered from any of our favorite MINI parts suppliers (ECSTuning, Outmotoring, etc).

 

This information was very helpful. I have been working on cars for 40years and never heard of this. It also didn’t make complete sense since there is nothing to the light assembly, the same as ever before, plastic, wires and metal tabs. Having this information got me thinking, and sure enough I pulled out the assembly and checked the tabs, they had oxidation on them. With sandpaper I cleaned the tabs on the assembly and the bulb. It immediately fixed the fast blinking, it’s back to normal. It wouldn’t hurt to add bulb grease/ lithium grease to the tabs to help prevent the issue again.
My assumption when those of you who bought a new assembly was that the dealer just said you needed one because they don’t typically fix parts, just replace them. This may or may not be the case with everyone but this should help many of you.

 

That could also be an issue, but in my case I cleaned/greased all connections, and it still had this weird issue.

 

I ended up bending the contacts out a little for a tighter fit, cleaned the contacts and then applied di-electric grease to the contact surfaces. So far, so good....

 

is there a faulted fuse related to this failure that has to be replaced!

 

what about a faulted fuse? I noticed on one tab what appears as arcing, yet no faulted bulbs. I could not id the fuse # to check on our 17 Clubman S All4, do you know the #?

 

This issue seems to be (at least for me) a fault in the light fixture. I replaced mine and all is good.
But here's the fuse list. As you can see it's a bit cryptic and not all the spots are filled. I'm trying to figure out the fuse for the rear power points without success.

 

When ur bumper unit(s) failed, did both left and right fail completely ? No lights at all?
My concern is the apparent arcing I observed with one tab might have faulted a fuse that has to be id and confirmed is ok. I tested and oked the bulbs with a ohm meter. As u noted, the paper diagram provided in the grove box 'fuse box' or the fuse panel (photo) provides no help, coupled with no help from the 17 owners manual, page 233. So which fuse relates to the bumper brake / turn signal lamps?