Wiring problems of the 2014 BMW 328

I was driving my car as usual, made a left hand turn, and a notice came on the dashboard alerting me that the left rear turn signal and left rear brake light were not functioning. As this is very concerning, I immediately took the car to the nearest BMW dealership for analysis. They told me that there was an electrical issue and that the entire wiring harness in the left rear would need to be replaced at a cost of $905. It was at this point that I wanted to get a second opinion, so I had my local mechanic take a look. He told me that there were scorch marks where the ground wire connected into the wiring harness, and that the ground pin that it connected to on the other side was entirely eroded. He suggested the reason behind this was that BMW used an inappropriate gauge connector for the current that was being transmitted, causing erosion over time. He was able to order genuine BMW replacement parts and installed them for a fraction of the price quoted at the dealership. This is very concerning to me because of the risk of a potential electrical fire.

On Feb 20, 2020, I took my car to BMW dealership because I had a left rear signal and brake malfunction. I was given an estimate of approximately 600. 00. Based upon my understanding of this issue, this is a manufacturer issue. The circuit board, connector, and wiring must be replaced. After further research, I found that there have been two recalls for this very same issue, but for older model BMW's. Please reference 13v407000 and 17v6766000. BMW also issued a service bulletin to fix this issue. Please reference sib63-0611. Also reference 11v-438 campaign. It is apparent that BMW's are still being produced with the ground wiring issue. If you visit bimmerfest, you will see how many BMW's from 2010- 2014 are still being effected by this issue. If older models were recalled for this issue, newer ones with the same issue should also be recalled, and fixed free of charge. I am currently driving a vehicle with a faulty left rear brake light, and left rear signal light which is a safety hazard. I am requesting that BMW pay for the repairs as this is a manufacturing problem, not operator error or wear and tear. Please reference the complaint filed on 3. 3. 20 11315965.