[thatonex3]

Hello everyone, I have been having this weird problem with my 2012 BMW X3 xDriver 28i F25, I have been trying to search about it but does not seem to find a similar issue.

It happened the first time about 2 weeks ago, I drove it to campus, went to class, came back and it reversed just fine, but when I tried to accelerate, it would not go over 2k and it felt like the auto-hold was engaging (felt similar to when auto-hold hesitates and some brakes engaging), I gassed it, it let go but a bunch of errors popped up (4x4 chassis stabilization with ABS, ABS lights, traction control, red BRAKE light, and a yellow Park light)

I drove it home, engine and transmission were smooth, braking was just as casual. Did not drive it for a couple of days, then drove it and as soon as I took off all errors got wiped, I thought it was a fluke and it drove normally for a couple of trips. Need to mention that I took it to autozone when I still had the codes to try and scan it, and it came out with a
1. 48068C - Transfer gearbox - Clutch Momentary Not Used, Possibly
2. 480AB4 - Wheel Speed Sensor - Rear Right - Noise Control, 0
3. 480686 - Wheel Speed Sensor - Rear Right - Moving Detection Faulty, 0

Second time, same thing, I was in a drivethrough, put it in Park because it was taking forever, put it in drive and same thing happened. Took it home, did not drive for a couple of days, then same thing happened, drove it again and all codes were cleared.

I thought it might have something to do after switching from P to D, but I was wrong. I was sitting in traffic for a couple of minutes in a dead stop, had my foot on breaks, then when traffic started to move the car did the same thing, felt like the e-brake was engaging and it wouldn't let the car accelerates past 2k while feeling like there is something catching at least some of the wheels. so I had my foot on the gas to the floor for about 1-2 seconds before it let go and car started to drive like normal again with the same lights popping up again.

No weird noises, smell, smoke or any of that kind.

I sincerely apologize for the long post, I have been losing sleep trying to find something similar to my problem but each somewhat similar has different stories. I would highly appreciate any advice or insight on what could be causing this, and how to fix it.

[pungo]

Welcome to the forum...
Get a real scanner that supports BMW specific codes, i.e. ista+

[thatonex3]

Originally Posted by pungo

Welcome to the forum...
Get a real scanner that supports BMW specific codes, i.e. ista+

Thank you,
could you please recommend a good BMW scanner at a good price?
the car is now at a specialized mechanic that I trust, he said the right rear ABS sensor needs to be replaced and then perfrom a couple of tests to know for sure what is causing the issue if it is not the ABS sensor.

[newworldman]

Originally Posted by thatonex3

Hello everyone, I have been having this weird problem with my 2012 BMW X3 xDriver 28i F25, I have been trying to search about it but does not seem to find a similar issue.

It happened the first time about 2 weeks ago, I drove it to campus, went to class, came back and it reversed just fine, but when I tried to accelerate, it would not go over 2k and it felt like the auto-hold was engaging (felt similar to when auto-hold hesitates and some brakes engaging), I gassed it, it let go but a bunch of errors popped up (4x4 chassis stabilization with ABS, ABS lights, traction control, red BRAKE light, and a yellow Park light)

I drove it home, engine and transmission were smooth, braking was just as casual. Did not drive it for a couple of days, then drove it and as soon as I took off all errors got wiped, I thought it was a fluke and it drove normally for a couple of trips. Need to mention that I took it to autozone when I still had the codes to try and scan it, and it came out with a
1. 48068C - Transfer gearbox - Clutch Momentary Not Used, Possibly
2. 480AB4 - Wheel Speed Sensor - Rear Right - Noise Control, 0
3. 480686 - Wheel Speed Sensor - Rear Right - Moving Detection Faulty, 0

Second time, same thing, I was in a drivethrough, put it in Park because it was taking forever, put it in drive and same thing happened. Took it home, did not drive for a couple of days, then same thing happened, drove it again and all codes were cleared.

I thought it might have something to do after switching from P to D, but I was wrong. I was sitting in traffic for a couple of minutes in a dead stop, had my foot on breaks, then when traffic started to move the car did the same thing, felt like the e-brake was engaging and it wouldn't let the car accelerates past 2k while feeling like there is something catching at least some of the wheels. so I had my foot on the gas to the floor for about 1-2 seconds before it let go and car started to drive like normal again with the same lights popping up again.

No weird noises, smell, smoke or any of that kind.

I sincerely apologize for the long post, I have been losing sleep trying to find something similar to my problem but each somewhat similar has different stories. I would highly appreciate any advice or insight on what could be causing this, and how to fix it.

I had a similar issue with my 2011 x3 F25. I was about to send it to the scrap yard due to a sudden braking issue in wet weather at highway speeds.

My trusty BMW mechanic found the issue on the 2nd attempt. He first suspected gunky buildup in my brake hoses and performed a brake flush. That did not resolve the issue. The cure was a replacement of the DSC/DXC Hydraulic Unit. The price to install a new one was going to be over $3,000 which was not going to be an option for me (time to scrap the x3); however, he was able to find a used hydraulic unit for $600 and was able to save me money. I also had him to check the sensors near the front wheels (forgot what they are called). He noticed some grease on them which could've been closing a gap and setting my brakes to automatically engage which he cleaned off (He suspected the grease got there from oozing out of overheated wheel bearings due to the braking from the unit/sensor).

This bmw mechanic shop only works on bmw's and have been in operation for over 40 years and mine is the third case that they've noticed in the F25's.

We've haven't had any more braking issues/malfunctions since the repair and honestly, this F25 has been a mostly reliable tank. I'm glad we didn't scrap it.

I hope this helps you and good luck! Please let us know what the fix is when you figure it out.