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After driving the car for few hundred miles, I proved to myself this swap was a success...So, I decided to swap back the N14 on it after rebuilding it...here is some of that work starting at post #18
@MiniToBe Excellent work and very informative. One question on the engine harness adapter. At one point I thought you said all the wires were straight through between the different plugs. I thought another thread had a mention of adding two wires. Which is the correct way to make an adapter? Thanks!
You said you used a matching DME, CAS, and key fob, would I be able to re-use the one that already came with my car? I have a 2009 Clubman S with the n14 and I'm interested in putting an N18 in it. Thanks in advance.
You said you used a matching DME, CAS, and key fob, would I be able to re-use the one that already came with my car? I have a 2009 Clubman S with the n14 and I'm interested in putting an N18 in it. Thanks in advance.
The easy answer is no you cannot because yours is assigned and locked to your car and the donor ECU is locked to the other car.
The complicated answer is yes. You need to use special tools (I recently discovered) to "marry" the donor ECU to the host CAS. since this is N18 ECU, it has a second stage security code that the dealer only has and maybe other (still searching). This code needs to be entered into the ecu to enable the unlock the engine limiter.
Hello I am currently swapping a 2009 clubman s n14 with a 2011 Cooper s n18. I am running into the issue of the not being able to have it start do to the wiring harness not matching up. I have read your hole thread about your swap and was wondering if you still knew what wires you grafted over to make your new harness or if you still happened to have it. Any information about this would be greatly appreciated.
Hey there....I got your email and wanted to reply in the morning, but my direct swap without any wiring modification let me start the car as seen in my first videos. Later on, I realised that there were 3 or 4 wires that needed to be swapped located in the body side connector.
If the engine isn't starting then you have another issue. Did you just swap the ECU only or did you also swap the immobilizer and keyfob?
Hey there....I got your email and wanted to reply in the morning, but my direct swap without any wiring modification let me start the car as seen in my first videos. Later on, I realised that there were 3 or 4 wires that needed to be swapped located in the body side connector.
If the engine isn't starting then you have another issue. Did you just swap the ECU only or did you also swap the immobilizer and keyfob?
I am using a n18 ECU should I be doing anything else. both cars were running before the swap.
Another year and another swap. This time, I swapped the transmission, still from auto to auto, to the one that comes with the LCI models. Having gained more knowledge from my last swap, I will only modify the N18 ECU to work with the original CAS. The car was originally flooded and they seemed to have disconnected the fuel pump. only thing left now is connected the pump and rewiring the body side molex on the ecu.
Hey! Fantastic job getting the car all together & running! I’m about to get started on a swap in a 2008 Mini Cooper S. I’m getting an n18 motor, tranny, engine harness, ecu, CAS, keys & abs module to throw in my 08 from a 2013. Glad to hear there is no issues fitment wise but I am concerned about the wiring issue you had. I’ve gone over the thread a few times and I don’t see which wires needed to be added or moved, I just see you said 3 or 4 wires. Any chance you could shed some light on which ones? Thanks for any help & advice!
Hey! Fantastic job getting the car all together & running! I’m about to get started on a swap in a 2008 Mini Cooper S. I’m getting an n18 motor, tranny, engine harness, ecu, CAS, keys & abs module to throw in my 08 from a 2013. Glad to hear there is no issues fitment wise but I am concerned about the wiring issue you had. I’ve gone over the thread a few times and I don’t see which wires needed to be added or moved, I just see you said 3 or 4 wires. Any chance you could shed some light on which ones? Thanks for any help & advice!
This is where i started. If you can find the body side harness of the N18 and compare the two, that would also be good.
You don't need the ABS module. You also can get away with not needed the donor CAS and keyfob. I can get your ecu unlocked and you should be fine. At the time when i did this, i couldn't find anyone to support me. But I'm glad to have finally was able to do it 😬👍
Apologies for bringing up this old thread. I tried to pm but it isn't allowing me. I'm helping a friend with this same swap, and I know nothing about these cars. The swap has already been in and running (very poorly) and the steering won't unlock. Tried 3 different CAS modules. I believe that these wires may be the solution. Could you help point me in the direction of where this bulk connector is that contains the wires that we need to change? Thanks and sorry again for reviving this old post
Originally Posted by MiniToBe
This is where i started. If you can find the body side harness of the N18 and compare the two, that would also be good.
You don't need the ABS module. You also can get away with not needed the donor CAS and keyfob. I can get your ecu unlocked and you should be fine. At the time when i did this, i couldn't find anyone to support me. But I'm glad to have finally was able to do it 😬👍
Any update on this im doing n n18 swap i have everything but i dont want to change the body harness can i just change the wire location and will it work. i have ecu cas keyfob engine harness from n18. but im wondering if i can use the body harness of the n14. thank you.
Any update on this im doing n n18 swap i have everything but i dont want to change the body harness can i just change the wire location and will it work. i have ecu cas keyfob engine harness from n18. but im wondering if i can use the body harness of the n14. thank you.
You can use the n14 body harness. You need to jumper wire 5 to position 29, not rewire. The others need to be relocated.
I am doing a 2008 n14 to a 2011 n18 I really need som advice
Originally Posted by MiniToBe
I have known MINI for about three years and I cannot say how much she caught me eye. She is small but spacious. She can be fast when you need her to be fast. She can be cranky at times looking for attention. The engine compartment is compacted and tight that almost every space is used. Mini taught me a lot over the years to the point I started fixing other minis. More than 4 engine rebuilds, fully restoring two flooded cars (electrically), and fully restoring a Countryman with electrical issues.
Over the years, I collected various parts and now is the time to make use of them. It has been a while since I drove one with manual transmission. Luckily, what i have will make this dream come true.
In this project, I have an 08 clubman S with a LSD manual transmission which will remain. The N14 engine was used for another rebuild. I have an N18 engine that will be used for this project.
. Minitobe if you are out there anywhere I could sure use your expertese right now. I need the diagram you used for the harness you made for the n18 to the n14 from dme to body.
. Minitobe if you are out there anywhere I could sure use your expertese right now. I need the diagram you used for the harness you made for the n18 to the n14 from dme to body.
Hey, I'm still here but not as active as on FB. The harness modification table can be seen in post #65. Wire 5 is spliced and jumpered, not just relocated.
Passed PA inspection 
