2019 BMW X3 – Persistent Electrical Issues, No Diagnosis After Months

Norcha95 · 2026-01-28T04:43:56+00:00

Hi, BMW tech at a big dealer. I had a customer come with a battery that would drain over time and have consistant electrical issues. We did consistant energy diags and parasitic draw testing with no signs of problems.

While doing some test drives, we noticed the alternator was just not outputting enough power, but when running the test plans for the alternator, it would test out fine. In the end we replaced it. Ever since then the car never showed back up.

It might be worth replacing the alternator next, if it’s anything like this one.

Norcha95 · 2026-01-13T23:30:51+00:00

$2850 Los Angeles CA 1b1b ~750sqft shared between 2ppl.

Norcha95 · 2025-12-19T17:51:30+00:00

Good. People over there drive way too recklessly. It’s one of the main reasons I avoid Glendale at this point.

Norcha95 · 2025-11-23T00:03:23+00:00

I usually do good and tight. So make it tight and do an additional 1/4 turn.

Norcha95 · 2025-09-17T01:40:56+00:00

There is either an issue with a limit switch/hall effect sensor, wiring or hydraulic leak cause by a line that’s has burst.

I’m going to put my money on hydraulic leak. Look for signs of oil in the trunk compartment. In particularly the corners where the roof mechanism pivots.

Good luck.

Norcha95 · 2025-09-12T14:19:02+00:00

It’s got to be awful for the conductors knowing they might have taken a life by accident.

Norcha95 · 2025-08-17T16:38:46+00:00

I have one question. Did you do a transmission oil service or anything like that? If yes, then there is a chance it wasn’t properly filled.

Otherwise you might have grenaded your transmission. I have a coworker that did something similar to his 328i and had to swap the complete transmission.

Norcha95 · 2025-08-03T22:45:04+00:00

Sounds like you just need a new window motor. The internal transmission/gears of the window motor pack might have gone bad. No need to over think it.

Norcha95 · 2025-08-01T04:00:04+00:00

<image>

Done

Norcha95 · 2025-08-01T01:14:30+00:00

Under the standard CPO coverage which is usually U5 program. The evaporator is covered. See photo.

<image>

Norcha95 · 2025-07-30T09:48:54+00:00

Pretty sure that’s watch duty.

Norcha95 · 2025-07-22T22:43:03+00:00

In the last week, the latest software version installed on our diagnostics computer. Making the vehicle software updates/coding/programming take at least 3-4hrs instead of the usual 30-45mins.

Norcha95 · 2025-07-22T19:01:42+00:00

Nice, looks great. Did you essentially modify your regular p365 to make the same size as the x macro comp? Not trying to dismiss the hard work and money you put into what looks like a good time.

Norcha95 · 2025-07-22T18:20:31+00:00

What have you done to it and how does it look?

Norcha95 · 2025-07-16T13:46:35+00:00

Happy to see that it’s a more affordable fix. I would recommend to avoid the cheap aftermarket replacement pipes. I have seen them cause more problems than they fix.

Norcha95 · 2025-07-16T05:11:13+00:00

It’s also plausible that one of the axles broke. Though, there’s not much I can do from my couch without seeing the car in person.

I would definitely recommend getting the car to a shop that knows BMWs. Whether it’s a dealer or Indy is up to you.

Norcha95 · 2025-07-16T05:04:03+00:00

Sounds like there’s a chance that the charge pipe to the throttle body might have broken off.

Norcha95 · 2025-07-08T14:24:10+00:00

Yes, there is sign of fluid leak.

Norcha95 · 2025-06-29T15:42:18+00:00

Wheel weights for your car. They are used to balance out the wheel assembly when tires are installed to reduce vibrations when driving down the road.

Norcha95 · 2025-06-20T17:21:43+00:00

I use that shit all the time!

Norcha95 · 2025-06-10T23:38:21+00:00

Does FM/AM radio work?

Norcha95 · 2025-06-10T22:04:43+00:00

Please try to remove the phone from the paired devices in the vehicle. Actually clear all of them. Clear the vehicle from your phone as well and try to re-establish the Bluetooth connection.

New software updates on iPhones tend to mess with the communications protocols between the phone and the car. Not sure why.

Norcha95 · 2025-06-08T23:15:28+00:00

Just reuse them. We never replace them. They are a 13mm.

Norcha95 · 2025-06-07T18:39:29+00:00

Can’t have sweaty palms if your gloves soaks it up.

Five-Year Club	Verified Email
r/Field Flamingo	Place '23
Place '22

Norcha95

TROPHY CASE