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X3 G01 (2018 - current)
The third generation X3 starts production in August of 2017 and will include the new X3 M40i top of the line performance model.

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Old 01-19-2020, 08:27 AM
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Snow triggering obstacle alert...anyone else?

I live in Minnesota and it snows here a lot. Unfortunately when driving while itís snowing the front right obstacle alert goes crazy when below 5MPH. I am not sure where the sensor is located. Could anyone provide a pic? Iíll have to get the sensor replaced the next time I have my car in the shop but chalk another annoying X3 repair up. Has anyone else ran into this problem? Did they have to replace the sensor?

Overall I do enjoy the vehicle for its handling, shifting, style and over all comfort but at this price point I think the reliability is horrible for $50K. The list of small, medium and large problems Iíve had with the vehicle in just 8 months of ownership is insane. They just keep coming. This isnít my first BMW and I know this is a German made car and problems come with the program but geese....howís everyone else doing on the reliability side of things?
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Last edited by Jen4BMW; 01-19-2020 at 08:40 AM.
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  #2  
Old 01-19-2020, 08:57 AM
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Doug Huffman Doug Huffman is offline
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The ultrasonic sensors are the four nickel sized circles inside a quarter sized circle across the front and rear bumpers, pretty evenly spaced. They are on most cars now-a-days, very reliable.

Before you fix something that may not be broken, try making sure that the gap / crack between the bumper and the decoupler and the decoupler and the sensor are clean and free of sand. I used a vacuum.

Early this season I had intermittent false Park Distance Control PDC alarms. For a while I would clear them by stopping in the driveway, shifting from R (that enables PDC) to D and back to R, this time without the alarm. Now a month or two later it has stopped false alarming and seems to work fine.
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Last edited by Doug Huffman; 01-19-2020 at 09:02 AM.
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Old 01-21-2020, 11:41 AM
mwpepper mwpepper is offline
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I am in Missouri, and have found that ice builds up on the bumper fouling up the sensors. <Just had it happen yesterday> I turn off of the system until it thaws, or I can get it cleaned off. I turn off the system by pressing the little p symbol on the console. It's located to the left of the iDrive controller. I don't think that your system is goofed, just the weather playing with you. I guess that it would be nice if the sensors were heated. Maybe we will see that in future units.

Hang in there.
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Old 01-21-2020, 03:20 PM
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I've had this happen twice and squawked about it to BMWNA; they are very aware of this problem, but don't have a solution yet. Best solution for now > Turn off the sensor button on the center of the dash and the problem goes away.
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Old 01-22-2020, 07:56 AM
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Considering how many X3's live in snowy climates it's surprising the sensors don't come heated. That's actually a good idea! Granted, the fact that 145 and counting people have read my post and only a few have responded makes me wonder if most aren't experiencing this issue. It's odd that it's always the right front sensor. Hum....hopefully someone responds who had a sensor replaced and can share before and after results. In the meantime, I'll have to try Doug's cleaning tip and see if I get lucky.
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Last edited by Jen4BMW; 01-22-2020 at 07:58 AM.
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Old 01-22-2020, 08:01 AM
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Good. And when they do get iced over then just whack the bumper with your hand to crumble the ice and snow away.
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Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
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Old 01-26-2020, 04:51 PM
roc797f roc797f is offline
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Snow triggering obstacle alert...anyone else?

Well - I love my 2019 M40i but - with only 8k miles, I have had the battery die on my key fob, took the vehicle in for a humming sound related to the fan speed (heater), rear hatch will not open beyond halfway in cold weather, and dealt with one recall already. Regarding the sensor/ ice issue. Happened to me once as well. And donít get me started on Apple CarPlay - so frustrating!


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Last edited by roc797f; 01-26-2020 at 04:53 PM.
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Old 01-28-2020, 03:09 PM
GerWil GerWil is offline
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When there is snow on the sensors my X3 brakes when pulling out of my garage and have to clean them to move.
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Old 01-30-2020, 06:13 PM
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I don't want to hear any cracks about my driving but this morning but I was backing out of my garage in a hurry to get my daughter to school and I backed right into my trash bucket at the end of my 20 ft driveway. The rear PDC fired off a quick warning but there was no braking. We have all this fancy auto braking hardware but when we need it nothing happens. I know gripe-gripe-gripe but just saying...
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Old 02-07-2020, 03:39 PM
Rob175 Rob175 is offline
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That's why I won't buy any optional sensor packages. Too many bells and whistles that are unreliable. People used to learn how to turn their heads when changing lanes, adjust their mirrors to cover "blind spots", how to parallel park (a lost art but necessary in my state to get a license) etc etc etc.

We're developing drivers with bad habits, thinking that sensors and technology will save them from themselves. Senors can and do fail for any number of reasons, break, get dirty, get covered by snow.......and can be expensive to replace.

I'm not that old, but I prefer less warnings and sensors, like the "old days"....lol...when just the seat belt warning and door open warnings were it........we all managed quite well! And while I'm at it the regular maintenance lights and warnings are also a PITA. People can't remember to look at their odometers every 5,000 or 10,000 miles?....really!!

I could go on and on and on......especially about distracted drivers from looking at all their electronics!

Last edited by Rob175; 02-07-2020 at 03:42 PM.
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Old 02-07-2020, 05:32 PM
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I recall an option somewhere to enable/disable warnings for curbs and grassy edges on the road. Do you have such an option hidden away in iDrive?
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Old 02-08-2020, 11:21 AM
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Quote:
Originally Posted by DBU View Post
I recall an option somewhere to enable/disable warnings for curbs and grassy edges on the road. Do you have such an option hidden away in iDrive?
The only place I remember seeing that was in the BimmerCode app. I don't think that is an option in the regular BMW iDrive.
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Old 02-08-2020, 06:51 PM
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Yes, that is correct. That feature can be coded (but not readily available in iDrive). Sorry.
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