My X5 has had starting trouble that has gotten progressively worse over the last 6 months. Here recently I had to jump start the car every morning. The battery and electrical system were checked out and everything was fine. The battery is less than two years old.

I have already replaced the FSR and was not sure what the culprit could be. I have spent hour here trying to figure out the problem. Now, I think I have my solution. I disconnected the TCU after reading that it may cause the drain. I am please to report that the car started right up this morning. I do not have bluetooth or bmw assist, but the remote entry is now dead. Looks like I will have to buy a new one.

I hope this helps you forum members with future parasitic drain issues because it has been driving me nuts for months.

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2004 BMW X5 3.0i - Mine
2011 BMW 328i xDrive - Hers
2002 BMW 325xi - waiting for a new owner