Hello every one! I’m glad to share BMW i3 repair techniques

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Hello Alohart,I come from China.
In the past few years, we have repaired many HEV,PHEV and BEVs from BMW, Mercedes-Benz, and Audi. For most high-voltage components (such as BMW's EME, Mercedes-Benz's battery, and Audi's starter-generator etc), we have been disassembling and repairing them to avoid costly repair expenses.
Perhaps China's advantage is that we have a large number of hybrid and electric vehicles, giving us the opportunity to work on many of these cars. However, many of the techniques we use have been developed through a great deal of time and financial investment. Some of them we are happy to share freely, while others we hope to collaborate on. I hope no one has a different opinion of me just because I'm Chinese. I've been to the U.S. and Europe many times, and I really like those places and the people there. I've also been to Hawaii once. In my memory, it's the only place where you can see a rainbow from both directions.
 
Please - feel free to share. It's rare for people in your position to be willing to make information freely available. Most companies want to hide it rather than to share it!
 
I also understand their approach because, like us, they have gained these skills through some failures, as well as the loss of time and money, so they deserve to make money from it. Actually, we share the same thinking. I'm willing to share some knowledge, like when I shared with a friend from Sweden on YouTube last time. However, for very specific operations, we prefer not to offer them for free. We would rather find repair shop partners in each country to work together in serving customers.
 
This is my first EV. My last car was a VW Jetta TDI I had for 18 years. Good car on which I did much work.
Now I have many good tools that may never work again.
For an EV I see no drivetrain work. Chassis work, tires/wheels, brakes, bulbs, interior misc.
Now excuse me, I have to go check the windshield washer fluid.
 
This is my first EV. My last car was a VW Jetta TDI I had for 18 years. Good car on which I did much work.
Now I have many good tools that may never work again.
For an EV I see no drivetrain work. Chassis work, tires/wheels, brakes, bulbs, interior misc.
Now excuse me, I have to go check the windshield washer fluid.
Hey Chucki3 Same for my wife and me. We still have our 2004 VW Jetta TDI wagon. Soon to be sold, I hope. I purchased a 2021 i4 REX to replace it.
 
Hey Chucki3 Same for my wife and me. We still have our 2004 VW Jetta TDI wagon. Soon to be sold, I hope. I purchased a 2021 i4 REX to replace it.
I had my faithful TDI shredded. In California I was paid to do so. Being 20 years old its resale value was a couple thousand. I was paid $1500 to have it taken out of service.
I think that ups my standing as a 'smug elite' (term of RFK Jr. in regards to those who affect change) liberal out to save the planet!
 
Hi LEO,
Welcome! I appreciate your willingness to share your expertise! I am thinking you might be the person who can give me some insight on an issue I have on my 2017 i3 REX w/44k miles. I have a permanently stored "222A0C EME: Internal Fault" with no symptoms whatsoever. The car drives and charges as it should and displays no errors of any kind and has no other faults. Code lookup suggests only that the EME has a faulty internal sensor, without any additional information. BMW diagnosed the EME as faulty, requiring replacement at my expense for $16k+ (well more than the car is worth). BMW dealer and corporate "genius team" has been unable to explain what the problem is (i.e., what exactly has failed, what triggers the fault, what parameter is being sensed, what can be expected if I do not replace it, etc.). I contacted 2 firms that advertise i3 EME rebuild services and neither could help me. Replacement of the EME is not feasible, but I sure would like to know if I should be concerned, what my other options are, and whether I can safely continue to drive the car as is. Do you have any insights?
 
Interesting I have the the same vehicle and have odd error codes which I clear only for them to reappear on investigation I find nothing actually wrong I use a Autophix designated for BMW code reader and purchased a dongle to generally investigate the electrical system. In the past I have had vehicles producing error codes but never ever got to the actual problem and suspected it was a glitch in the system .. I can post the information I got from the dongle for you to compare.
 
I will get the General information sheet if you think it would help
 

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As you may be aware the electrical system is Can Bus which is complicated in its operation but works well generally.
But the slightest malfunction in what ever can throw up a fault code ,if you can’t see any actual unusual readings the chances are it is a minor issue simply de plugging a component and re plugging may solve a issue, Slight corrosion between terminals can be the issue.
 
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