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Maybe just open the caps and check the wires. Before its to late apply a fix for it… it seems to be common for 2014 to 2016 cars
I have the 2017 model and the wiring harness design is exposed etc, checked recently.

What I am trying to say, is that BMW should know how to design a bloody wiring harness which doesn't cause this issue - pretty poor of them otherwise don't you think!?
 
Discussion starter · #43 ·
It kinda saddens me that a premium brand such as MINI/BMW would put any owner with this wiring loom issue through so much stress and worry.

I paid a big price for my JCW with all the extras and now I am worried about the long term ownership of it. Will it start to cause issues in the next 5 to 8 years of ownership costing big money to fix? This is why you pay the premium price for innovation and reliability, otherwise, why not go with Kia with its 7 years warranty.

You think with all the experience of BMW/MINI they would not design components as essential and common as a wiring loom to fail in such a basic way - water ingress!

They should at least, repair it under the ' goodwill gesture' banner, this way they don't have to admit that the design is flawed.

I hope you win via the small claims court and claim additional compensation for the stress caused etc. I can see them settling out of court.
I completely agree, it's why I chose a JCW myself, as I assumed a premium brand would be well designed and I'd be well taken care of as a customer. I also paid a lot of money for my JCW and I'm now worried about it costing me more as time goes on, so although the car is now fixed and running perfectly, I've put it up for sale 😕

I'm 34 weeks pregnant now and could really do without the stress of it all - both MINI and the dealership know this but they honestly don't seem to care in the slightest.

When the issue first appeared I stupidly assumed the same as you, that they'd offer to sort it out under goodwill and that I'd just pick up the cost for the diagnostics I'd had done elsewhere, which was still sizeable. Instead it's spiralled into an ongoing nightmare 😕

The branch manager has been awful, his last response was extremely patronising and he deliberately phrased his reply to try to make me look bad, knowing that our previous phone call was unrecorded so he could make out like I've been the one at fault throughout. He knows the court will be reading the correspondence so he's been doing his best to imply that I've done something wrong.
After I called him out on it in my reply he stopped responding entirely, surprise surprise.

Honestly I'm so disheartened with it all but I'm not backing down after all they've put me through, so I really hope the court will sort it out with me or they'll settle.
I'm so pregnant now though it's becoming a total ordeal. Feel like just waddling my fat ass down to the branch and waving the ruined wiring harness around and telling every customer who comes in what they've done, but I know it'll hurt my case 🙈😂
 
This made me so paranoid that i've swapped out my windshield washer fluid to -40F stuff. My MINI is always garaged and I live in the most treeless state in America.

There isn't an automaker out there that doesn't make a turd once in a while. I've owned a few. I still think my 2018 Toyota Tacoma was the biggest piece of junk i've ever owned. I bought it new and the dealer had it so many times in 27 months that I punted it down the road. I use to think my R53 MINI and MK3 VW Jetta were bad, but that Toyota bested them.
 
I completely agree, it's why I chose a JCW myself, as I assumed a premium brand would be well designed and I'd be well taken care of as a customer. I also paid a lot of money for my JCW and I'm now worried about it costing me more as time goes on, so although the car is now fixed and running perfectly, I've put it up for sale 😕

I'm 34 weeks pregnant now and could really do without the stress of it all - both MINI and the dealership know this but they honestly don't seem to care in the slightest.

When the issue first appeared I stupidly assumed the same as you, that they'd offer to sort it out under goodwill and that I'd just pick up the cost for the diagnostics I'd had done elsewhere, which was still sizeable. Instead it's spiralled into an ongoing nightmare 😕

The branch manager has been awful, his last response was extremely patronising and he deliberately phrased his reply to try to make me look bad, knowing that our previous phone call was unrecorded so he could make out like I've been the one at fault throughout. He knows the court will be reading the correspondence so he's been doing his best to imply that I've done something wrong.
After I called him out on it in my reply he stopped responding entirely, surprise surprise.

Honestly I'm so disheartened with it all but I'm not backing down after all they've put me through, so I really hope the court will sort it out with me or they'll settle.
I'm so pregnant now though it's becoming a total ordeal. Feel like just waddling my fat ass down to the branch and waving the ruined wiring harness around and telling every customer who comes in what they've done, but I know it'll hurt my case 🙈😂
Please keep us up to date if you can, any news on the car and your action would be appreciated, news on your impending arrival would be of great interest too.

Good luck and put you and your baby first.
Steve
 
Hey there, just messaged you regarding whether you used finance. I rejected a dodgy Porsche back to the Bank/Mclaren using the financial ombudsman, took a while but well worth it if you used finance. If not, I'd still like to help, but it seems youre already on the right track. Just get everything in writing now, youve given them oppertunity, they refused, youve got it fixed, and can prove its a design issue. Slam dunk if you ask me... just keep it profesional, and organised.
Im getting the feeling youre not crazy desperate for the money, so put that to the back of your mind now, and just let the process take its time. I got 8% interest on all the balances that were owed to me (Standard rate the ombudsman applies), so its a pretty good return, no need to rush!
 
So I finally had my wiring loom replaced in March at a cost of over two grand (it did include a broken engine mount replacement too) and then a week later, someone pulled across and into my path probably writing my car off😂 I have to laugh as I’d probably cry after all the time and money spent.
I still can’t get my head around such a poor design and the ignorance of BMW/Mini. They are quite happy to sell you a new, upgraded wiring loom at a ridiculous price!
 
Hey guys,

I currently have a 2015 F56 JCW Mini Cooper S - it's just turned 6 years old and unfortunately recently developed some issues, including errors such as:
  • Reverse Parking Camera failure
  • Headlight vertical aim failure
  • Lighting System - Control lights, turn indicator, dipped beam, fog light, high beam and headlight flasher not functioning
  • Lighting system - Front right cluster failure
I took it down to a MINI specialist and they quickly identified a CAN communications issue. Upon investigation, they discovered that a design flaw with the car has resulted in water running down behind the scuttle, soaking onto the wiring harness and drenching the wires. The wiring is severely swollen and these errors are the start of massive electrical failures. I spoke with BMW parts and they confirmed they're aware of the issue and sell a specially made part which is designed to replace the area of the wiring commonly affected. Additionally, they told me the fault is so common that they sell 70+ of these repair parts per month. The new part has been redesigned to allow water to drain away from the wiring when it gets wet.

However, due to the amount of work required to access the wiring to replace it, the repair is 2-3 days of labour and, even without dealership prices, I've been quoted upwards of £1500+VAT to make the repair. I spoke with MINI regarding the issue and they told me that as the car is out of warranty they won't do anything and quoted me £2584+VAT to repair it at their centre.
I spoke with MINI customer services and their executive complaints team to ask if there's anything they can do to help, as the issue has clearly taken years to develop and there's no way a 6 year old car should have a full wiring failure of this nature, but they've refused to offer any help whatsoever and told me it's my problem, despite it being a well known issue due to the way the car has been designed.

As far as I can tell, this issue can affect any F56 mini from 2014 through to at least 2018 and was only recently rectified, thus the need for this specific replacement part that BMW have created. In some issues, the washer fluid bottle directly above can leak onto the wiring and in other instances it's just a case of rain water slowly leaking down over a sustained period of time, eventually resulting in complete electrical failure. If the issue is left undiagnosed for too long then in some cases it can result in the entire wiring harness requiring replacement. It's still unclear if mine is damaged beyond the scope of the replacement part or if that part will be enough - the garage currently working on the car have left the bill open ended as they're unsure how long it's going to take to fix or if a full wiring harness will be needed.

I've had nothing but trouble since I bought my JCW three years ago, so I've decided that this is the last issue I can handle and once repaired I plan, very reluctantly, to part with the car :(

Additionally, I wanted to make sure anyone with an F56 of this era checks their wiring - don't end up like me with an eye watering repair bill and an undrivable car. If you find you have this issue or you've had this issue previously and didn't know it was a common fault, please feel free to get in touch, as I plan on continuing to pursue BMW UK for the cost of the repairs and hopefully help out other owners who've had to shoulder this cost themselves too. The wiring flaw is so severe it should've resulted in a recall, but because it only causes financial woe for customers and isn't a safety issue, BMW clearly decided not to bother taking any responsibility.

I've attached some photos of my wiring so you know where to look if you need to check yours. Very upset it's come to this as I've had MINIs throughout my driving career and this has left me feeling like I can't trust MINI or BMW anymore :(

View attachment 75582 View attachment 75583 View attachment 75584

I did also find another thread here related to this issue, so I know it's definitely common :/

Hi, this has just happened to me- the technician nonchalantly said “this is a known issue”. How did you get on? I’m absolutely disgusted with Mini.
 
I have also had this issue with my 2015 F55 Cooper D, Luckily I have warranty on the car still, however I am still unaware if they will cover it or not. I was quoted £3500 from one garage, and it turned out they weren't able to do that job, so my warranty organised for it to be taken elsewhere to a private MINI specialist who have dealt with this issue many times. I haven't recieved the quote from them yet, but id imagine it won't be much different as its an engine out, interior out job and will take 2-3 days for the full repair.
 
Hi everyone, my wiring harness failed too. North Oxford Mini were incompetent, unhelpful and unethical. In the end I asked to speak to the manager and he admitted that Mini are aware of this fault.
I am going to contact the ombudsman because, clearly, Mini should be paying for these repairs without question.
I have had mine paid for by them, after they made me beg.
I recorded the meeting I had where the manager openly admits Mini know of the issue.
If anybody else would like to complain to the ombudsman with me, please contact me on here.
 
Hi all, just to add my experience on this issue. Had the same problem as OP with headlight, DRL and vertical alignment all failing on my 2015 F56 JCW. Car was due for service and took it to Group 1 BMW explaining the faults. They finished the service and told me that the problem with the lights was due to a wiring harness issue. They said that this was a common problem and that they had contacted BMW/Mini for a goodwill gesture. He asked to see all service records (had head unit replaced so not showing in service history) which was all main dealer, 5 services. Just heard from them that BMW/Mini willing to pay 100% of the parts and 70% of the labour. The cost estimate for labour is 10-11 hours @ £250+VAT. I guess having full Mini dealer service history made a difference on the goodwill. Still not happy to pay around £1,000 including the diagnostic fee for something that should not have gone wrong.
 
Hello folks, question for you. Is there a concensus on when they made the switch over to the fabric type?

I thought 2017 but saw someone on here saying their 2017 had to have new wiring. Do we know what month in 2017 it changed?

Thankfully the approved used site tells you the month + year of registration, handy as dealers don't seem interested in helping me out. Enquired about one car, was told only technicians can remove the plastic master cylinder cover, asked if they could get a technician to do it, no reply after multiple emails!
 
I was chasing a misfire on my daughters 2014 f56 cooper - seems to have been caused by some
Oil weeping from oil cap onto injector harness causing a short - new cap , clean up and seems to be solved - was looking at changing the injector wiring loom based on some posts here - but when I had done the strip down - connector to DME was incorrect ( seems to have been upgraded from the early ones) so just did the clean up of wires and connectors and did a check on wires
 
Hello folks, question for you. Is there a concensus on when they made the switch over to the fabric type?

I thought 2017 but saw someone on here saying their 2017 had to have new wiring. Do we know what month in 2017 it changed?

Thankfully the approved used site tells you the month + year of registration, handy as dealers don't seem interested in helping me out. Enquired about one car, was told only technicians can remove the plastic master cylinder cover, asked if they could get a technician to do it, no reply after multiple emails!
I'm not sure the fabric loom cover being discussed here will stop this from happening. If it can still get in there, it seems likely that the water can still cause problems. The design should have changed to prevent water getting onto the wiring loom in the first place. It may just take longer to cause the same end result, but it would be likely to do so over time. So more recent cars, will not yet be likely to have developed the same issues, but given time they most likely will have a number of these issues. Failing that the design should have changed to allow really simple changing of the wiring loom part affected. But that would not make Mini a fortune in repair bills.
 
Hey guys,

I currently have a 2015 F56 JCW Mini Cooper S - it's just turned 6 years old and unfortunately recently developed some issues, including errors such as:
  • Reverse Parking Camera failure
  • Headlight vertical aim failure
  • Lighting System - Control lights, turn indicator, dipped beam, fog light, high beam and headlight flasher not functioning
  • Lighting system - Front right cluster failure

Out of curiosity did all these warnings happen at the same time, or did you get this trickling in so to speak, with maybe intermittent issues with one or more warnings that resolved spontaneously, then returned... or happened only when it rains, or you went through a car wash?
 
Ours is just about to go in for a 1hr diagnosis at BMW to confirm it’s said fault. The lady on reception confirmed it’s a known fault and have had loads back with the same issue.
She said as we had a trading history with them she will do all she can to get it done under warranty but I’m doubtful to say the least.
 
Ours is just about to go in for a 1hr diagnosis at BMW to confirm it’s said fault. The lady on reception confirmed it’s a known fault and have had loads back with the same issue.
She said as we had a trading history with them she will do all she can to get it done under warranty but I’m doubtful to say the least.
Yeah, this problem is not a tempting one. I got home from a long EU trip and was considering changing the Coop S for a JCW and test drove a couple of 2020 cars. Noticed while looking at them that the wiring loom is exactly the same location and design as the one in my car was (late 2018 no plastic wrapping on wires but some looser fabric stuff), and as such can have water pour over it in a deluge of rain. This plus the fact that the JCW didn't blow my socks off after having driven the Coop S for 18 months, pushed me back into a BMW, M240i to be precise which was the same price as the JCW Minis i was considering, and same sort of mileage and age.... would've been mad to buy a mini when i could get that much more car for the same outlay, and no wiring loom problems either :cool: WIll miss the Mini though, they drive really nice on back roads :cool:
 
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