[thestuarts]

@Dan_80, do you have a cargo mat on the trunk? I have had a few problems with the trunk fully closing when the cargo mat slides and partially covers the latch. I am going to put double-sided velcro on my mat to keep it from sliding.

[BMWGuySweden]

Trunk not closing because something was in the way sounds like a possibility? I had this happen to me and started the car and only realized the hatch was open after I pulled out.

[MechX3M40i]

Originally Posted by thestuarts

@Dan_80, do you have a cargo mat on the trunk? I have had a few problems with the trunk fully closing when the cargo mat slides and partially covers the latch. I am going to put double-sided velcro on my mat to keep it from sliding.

I also experienced having the cargo mat blocking the closing of the trunk. The first time it happened, the trunk lid stayed ajar for a while until I realized it's not fully closed. Took me a while to be able to secure my OEM X3 cargo mat and keep it from sliding around in the trunk.

https://www.bimmerpost.com/forums/sh...php?p=24143674

[Dan_80]

No, I do not have any cargo mat, and I have not used the trunk for a few days before the incident. After some searching in the forum, i found similar incidents in other BMWs. All happened while the car is driving

https://f30.bimmerpost.com/forums/sh...2&postcount=16

https://www.bimmerfest.com/forums/ar.../t-590146.html

Also one reported in this thread
https://x3.xbimmers.com/forums/showp...86&postcount=7

Originally Posted by thestuarts

@Dan_80, do you have a cargo mat on the trunk? I have had a few problems with the trunk fully closing when the cargo mat slides and partially covers the latch. I am going to put double-sided velcro on my mat to keep it from sliding.

[BMWZ4]

Originally Posted by thestuarts

@Dan_80, do you have a cargo mat on the trunk? I have had a few problems with the trunk fully closing when the cargo mat slides and partially covers the latch. I am going to put double-sided velcro on my mat to keep it from sliding.

Definitley a possibility...great example of the hatch "closing" but not actually closed is that mat...hit a bump in the road as I suggested and could very easily pop open.

Just an opinion, but I doubt very much there's something brewing here, with this particular issue. Maybe the other mysterious hatch openings, but not this one. Again, IMO.

[KaedeNR]

This cant be right, when I have my X3 in anything not P, the dashboard will flash a warning saying that "the car must be in P before trunk can be opened". Did they take this away in 2019?

[IXVXI]

Originally Posted by KaedeNR

This cant be right, when I have my X3 in anything not P, the dashboard will flash a warning saying that "the car must be in P before trunk can be opened". Did they take this away in 2019?

Not true, I think your foot just needs to be on the brake pedal.

[BMWZ4]

I'm going to do some more field testing tomorrow. I'll try the brake pedal thing as well...

[Mocon]

It was also my belief that the trunk could not open while the car was moving, but guess what it does, it has and BMW does not believe you.To all the people that has had it happen, we all need to wake up or stop smoking the good stuff-okay

[BMWZ4]

Originally Posted by Mocon

It was also my belief that the trunk could not open while the car was moving, but guess what it does, it has and BMW does not believe you.To all the people that has had it happen, we all need to wake up or stop smoking the good stuff-okay

So this happened to you, in addition to your vibration issue (now fixed I believe)

[Mocon]

No, only the front end seems to be the only repair that has held up-they finally changed out my front right strut and sensors-after replacing the rear axles the vibrations has come back and gets worse as the mileage rolls up-and the trunk which is magical according to the dealership techs-one day when I was bringing it in to be worked on, the trunk open at a traffic light a few blocks from the dealer-had to get out with everybody honking at me as the light had turned green during the morning commute-what pleasure this car has been to own!

[BMWGuySweden]

Why did you get out? You can close the trunk from inside

[Mocon]

Did not know that-I do not believe that was the case with my old 2014 x3-it is funny that you must put it in Park to do it-but the trunk can open at anytime on its own, in any gear-drive and reverse included

[zaitcev]

I have a 2019 G01 and I encountered instances of rear hatch opening by itself or the car locking itself while in the garage. In all cases it was linked to mishandling of the remote. I instituted a protocol that protects the remote better and these instances ceased. Still, inadvertent operation is much too easy. The operation of the hatch with the remote while car is in motion is also a dubious feature.

[Speedbird1]

Originally Posted by Mocon

Did not know that-I do not believe that was the case with my old 2014 x3-it is funny that you must put it in Park to do it-but the trunk can open at anytime on its own, in any gear-drive and reverse included

It was also a feature of 2014 X3's as I had one. Just out of interest, and only because you said you didn't know you had this feature, (i.e. remote switch for tailgate on drivers door switch pack) given the switch to open the rear tailgate is situated just forward of the window switches - could it be possible you activated this switch instead of the window? Just a thought and fully prepared for you to say it definitely wasn't this.

For the record, I've had my 2019 X3 for 2 months now and except for 3 times when the tailgate opened just after I got the car, due to my having the unprotected fob in my pocket, since I purchased a cover for the fob, it has never happened since.

Hope you get this resolved soon.

[titomi]

From what I read on this forum, I think we are talking about (possibly) three different problems:
1. open at stationary due to unintentional button press on remote (there is a solution for this - key fob cover or dealer can code it so it open only when the car is unlocked)
2. open at stationary due to sensitive sensor (car must be equipped with comfort access in this case; there is a solution for this - sensor replacement)
3. open while moving - no solution yet

It is possible, that numbers 2 and 3 are the same problem. Best (and I believe the only) way to resolve it is to take it to the dealer. If nothing else, at least it will be noted there, that someone had this issue.

For what it's worth - I don't have comfort access on mine. I did experienced only option number 1 - bought a silicone fob cover (I know, there are better solutions). I don't have cargo mat. If I remember correctly, there is a warning in the instrument cluster when the tailgate/boot/trunk/hatch is opened.

[Mocon]

It is not the key fob-the dealer made what he called a two step move that I must also press the button on the door to open-the trunk has opened with the car moving in gear-I did not push the latch thinking I was opening the window because I think the last time I drove with the windows open was the first year I move to Florida-it was 88 here yesterday-end of february and 88-most people drive with A/C on

[MechX3M40i]

Originally Posted by titomi

From what I read on this forum, I think we are talking about (possibly) three different problems:
1. open at stationary due to unintentional button press on remote (there is a solution for this - key fob cover or dealer can code it so it open only when the car is unlocked)
2. open at stationary due to sensitive sensor (car must be equipped with comfort access in this case; there is a solution for this - sensor replacement)
3. open while moving - no solution yet

It is possible, that numbers 2 and 3 are the same problem. Best (and I believe the only) way to resolve it is to take it to the dealer. If nothing else, at least it will be noted there, that someone had this issue.

For what it's worth - I don't have comfort access on mine. I did experienced only option number 1 - bought a silicone fob cover (I know, there are better solutions). I don't have cargo mat. If I remember correctly, there is a warning in the instrument cluster when the tailgate/boot/trunk/hatch is opened.

Great summary. I think if all members posting their problem here could also include critical details in their posts (sample questions below), it would be quite helpful to the forum. We have plenty of helpful members here who are willing to test out our cars accordingly.

1) do they have the Comfort access options?
2) do they use a key fob protector? Trunk mat?
3) did they see any warnings on the dash, or hearing chimes when the trunk opened? Was the car moving, or stationary? Gear shift in Park, or in Drive?

[BMWZ4]

Originally Posted by MechX3M40i

Great summary. I think if all members posting their problem here could also include critical details in their posts (sample questions below), it would be quite helpful to the forum. We have plenty of helpful members here who are willing to test out our cars accordingly.

1) do they have the Comfort access options?
2) do they use a key fob protector? Trunk mat?
3) did they see any warnings on the dash, or hearing chimes when the trunk opened? Was the car moving, or stationary? Gear shift in Park, or in Drive?

Maybe also MY and build date? Maybe this is an early model issue?

Still not convinced about the hatch opening while in motion though, so far somewhat anecdotal. I haven't been out to test a few more things yet.

[allen3ybq]

Originally Posted by IXVXI

Not true, I think your foot just needs to be on the brake pedal.

What if you are braking at 100mph and hit the trunk opening button

[nogren]

I think we all can agree that there are intended blocks of opening mechanisms while in motion, so there must be something wrong with that SW, or even HW handling the hatch opener itself.

The gentleman reporting about opening at speed did not have Comfort Access, so it can't be connected to the lock sensor.

I also believe that the drivers door buttons, fob buttons, and hatch button(s) all can be programmed through coding, and that the default varies depending on the market.

[Dan_80]

Great summary,
1) I have the comfort access (convenience package)
2) No key fob protector, no trunk mat
3) No warning, no chimes. Car moving at 60 MPH.

Originally Posted by MechX3M40i

Great summary. I think if all members posting their problem here could also include critical details in their posts (sample questions below), it would be quite helpful to the forum. We have plenty of helpful members here who are willing to test out our cars accordingly.

1) do they have the Comfort access options?
2) do they use a key fob protector? Trunk mat?
3) did they see any warnings on the dash, or hearing chimes when the trunk opened? Was the car moving, or stationary? Gear shift in Park, or in Drive?