CarPlay disconnecting

Hello, Bought a new 2018 BMW 430i and have been having issues from the start with CarPlay using my iPhone X. Continuously disconnects and then reconnects. Usually after about 10 minutes of driving. Has anyone else had this issues and found any resolutions. I’ve been in contact with BMW and they are saying numerous people have been reporting it and it’s an Apple software issue.

iPhone X, iOS 11.2.5

Posted on Feb 17, 2018 8:11 AM

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Posted on Mar 14, 2019 11:21 AM

It appears that in certain BMW cars where Carplay is wireless the connection is poor and carplay disconnects all the time. In some Evo ID5/ID6 units the WiFi antenna is missing. The Wifi antenna connects to the back of the unit which is very easy to take out (requires removal of 6 screws). It should be connected to the WLAN socket (the light blue connection on the right). Since I've connected it life is great and Carplay connection is excellent! WiFi antenna is cheap and can be easily ordered

275 replies

Feb 29, 2020 9:09 AM in response to Kauff29

If you're having issues connecting with CarPlay, remove the Bluetooth connection between your iPhone and vehicle. Restart your iPhone and try to use CarPlay again. ... Go to Settings > General > CarPlay to see if you have any other CarPlay connections with another vehicle. Try deleting these to see if it fixes the problem.



[Link Edited by Moderator]


Feb 29, 2020 5:15 AM in response to Jaldi

You're not removing the profile in the head unit if you're doing it while driving. You can't, or maybe shouldn't be able to do a navigation reset while the car is in motion.


Sounds like your just removing the profiles in your phone.


There's the BT profile in your phone, one in the Navigation/Head Unit. If either of these is corrupt it will cause issues. They both need to be completely removed. That's why when some people rename the phone the issue goes away, some head units pair profiles with phone names. So, if you rename your phone the head unit will create a new profile. The head unit BT controller thinks this is a new device and assigns a fresh, spankin-new profile to the "New" phone.


If you load a new, or get desperate enough to make the mistake of loading a beta OS on your phone, you might think the iOS update fixed it and this probably isn't the case. The BT profile on the phone changed enough to trigger a new BT profile within the car because the new update. Then guess what? Same exact problem and you spin 'round and 'round again when you could have started by resetting the Navigation/Head Unit and reset your phone and you'd be back on the road in 20 minutes.


This is very common in BMW's due to the lack of redundancy checks in the system.

Mar 11, 2019 5:59 PM in response to luigidelgado

There are no official answers from Apple but after reading all replys here and in other posts and even other sites I can see it comes from two things (which BTW makes sense if you know a bit about system development):


  1. It looks like there could be a glitch between the iPhone network module and the car connection (memory overload, internal crash, etc)
  2. It looks like there's a glitch between the iPhone power management and the car interface which makes the connection signal unstable and looses it.


I come to this after reading that is confirmed that Wireless Carplay fails as well as USB Carplay. Others are having this issue when (confirmed) a VPN is configured or the cell signal is low, in this cases the disconnection will come, and lastly that looks for some people that changing the phone name or resetting the network settings has helped. Also because a lot of people say to have found the connection si stable if the battery is 100% full.


There is something that is triggering or crashing the car connection and the only things I can think of is due to a memory overload or an unstable signal.


One IMPORTANT point: I have this issue since I bought an iPhone 8+ in December first in a BMW X3 2016 WITHOUT Carplay, then in a Tiguan 2018. The BMW Connected via USB will just star connecting and disconnecting randomly. In the Tiguan (with Carplay) it started happening just last week.


So my conclusion is that its not about Carplay itself. I think it's about the communication between the iPhone and the car which crashes and it has to be restablished.

Mar 12, 2019 8:51 AM in response to Kauff29

Problem solved!!!!!!

I had the same issue with BMW 330e. The solution is very easy. Since BMW uisbusing a WiFi connection in some models a WiFi antenna is all you need. It costs around 15$. Installation is very easy https://youtu.be/ncqGt_HUspo

After three months is suffering carplay won't disconnect and sound quality improved. This may look frightening to remove the dashboard cover but it is very easy and requires only a screwdriver. I suggest also a double sided tape and to put the antenna near the vent openings for optimal reception


Aug 13, 2019 12:56 AM in response to Jaldi

Short update. After some discussion with the dealer and local distibutor, the issue seems to be an issue zpwith theinduction charger. It overheats the phone. Firstly it disconnects the charging function, then the phone goes in overheat modus and disconnects from the system. They have created a case on it and hope to get a solution soon.

Feb 29, 2020 3:57 AM in response to Jaldi

Jaldi wrote:

My BMW dealer says that Apple continually releases s/w with bugs that they have to deal with. One thing he suggested to try is to hold down the power/volume knob and that will reboot your system in the car. That may help. I haven't had the problem since he told me to do that, so I can't say that I've tried it. My 530e did get better with the latest iOS and a BMW update.


That's just a flat out non-truth. Get rid of the bluetooth profile in the car, not the phone. People with Android Auto are having just as hard a time if not harder. So, I suppose all phone makers are against BMW? Coming from a company that charged subscriptions for CarPlay you think they would do better.

Feb 29, 2020 3:59 AM in response to TargetWebTechnologies

TargetWebTechnologies wrote:

If you're having issues connecting with CarPlay, remove the Bluetooth connection between your iPhone and vehicle. Restart your iPhone and try to use CarPlay again. ... Go to Settings > General > CarPlay to see if you have any other CarPlay connections with another vehicle. Try deleting these to see if it fixes the problem.
Mobile App Development Company

Cut the spamming.

Mar 1, 2020 5:18 AM in response to Carbuncle99




Carbuncle99 wrote:

So in plain speak, after you start car but before you set off, switch off blue tooth on iPhone then reboot your phone then put cable in if CarPlay connects to car display via cable?
in what order is this done I’m asking



No, just turn the bluetooth off before you get in the car. No Phone reboot.


Keep in mind: The cars systems will be active for about 20 minutes AFTER you stop driving and get out of the car. They do this so you don't have to cold boot it if you just do a quick stop.


You can use the quote feature in your posts so other users don't have to hunt for what response you're referring to.


Let us know how it goes.

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CarPlay disconnecting

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