07-25-2018, 07:01 PM | #1 |
Registered
2
Rep 2
Posts |
No audio
Hello, i recently bought a 2014 bmw 335i xdrive from a used car dealer ship. I had it for 2 weeks now with out any issues. (except when i drove it off the lot, there was no sound coming from the radio. but after a minute or 2 it started working. I just thought i wasn't using it right) However this week when i turn on my car the radio didn't work. Now it just cuts in and out.
I also get no -door chimes -navigational directions -the time on the head unit doesn't work -Bluetooth audio does not work -Aux audio does not work -cd/dvd audio does not work -SOS might work but i can't hear anything so who knows -parking sensor sound does not work -no directions on my heads up display (but speedometer on heads up display works) I also can't -mute -turn up/down the volume However when the sound comes back everything starts working again. Things i have try -disconnect negative battery terminal -taken my dash apart to check wiring -check all fuses -check amp -the red light on the fiber optic is not always there - try with engine on and off Sometimes i get lucky and everything works perfectly for a few days I know e90 had similar issues and all they had to to do was use a fiber optic jumper. But im not sure where all the modules on the f30 are or if it even uses a similar system |
07-25-2018, 10:13 PM | #2 |
Private
63
Rep 62
Posts |
Could be a number of things... but I suspect the amplifier is dying / almost dead.
Any diagnosis on this forum would be mere speculation (as is mine above). You really need to bring it in to a BMW dealership, and have them plug it in to figure out the problem. Did you get any kind of warranty with the car? ie. do you think the used car dealer will pay to have it fixed? |
Appreciate
1
IK6SPEED4492.00 |
07-28-2018, 02:37 PM | #4 |
Captain
130
Rep 765
Posts |
|
Appreciate
0
|
07-30-2018, 12:39 AM | #7 |
BimmerPost Supporting Vendor
668
Rep 1,980
Posts
Drives: 2020 G20 320i M Sport
Join Date: Apr 2010
Location: Canada & HK
|
Judging by the symptoms, you must have Harman Kardon which feeds the audio through the optical most bus. If the time is not syncing it's quite possible that you have some sort of short on the most bus and it might not necessarily be the amp.
I would have someone with ISTA scan it for faults and go from there as others have suggested.
__________________
CMB Solutions Limited |codemybimmer.ca
Vehicle Diagnostics | CarPlay Solutions | Retrofit & Repair Consulting/Programming steve.ma@cmbsolutionsltd.com | www.codemybimmer.ca Online Store | Remote Coding Package| ID6 Retrofit for almost all F Chassis BMWs |
Appreciate
0
|
07-29-2020, 08:12 PM | #9 |
New Member
2
Rep 9
Posts |
same issue F30 2014 320i Base Hi unit
dimbo617 did you figure out what the issue was? I have the exact same issue. I replaced the main battery after it had completely died. To get to the trunk I had to remove the back seat, but I checked and didn't see any wires pinched. I used ISTA+ and there are no faults. Test comes back clean. The amp doesn't have any signs of water damage or rust. All my fuses are good. No chimes no sounds nothing. Radio still pulls an HD signal.
|
Appreciate
0
|
11-14-2022, 05:50 AM | #11 | |
Registered
0
Rep 1
Posts |
Every thing works but no sound
Quote:
I've owned my f31 for 5 years full bmw history. And last week out of the blue everything works as it should but I have no sound from anything ( H K system) PLEASE HELP |
|
Appreciate
0
|
12-01-2022, 09:03 AM | #12 |
Registered
0
Rep 1
Posts |
F33 2017 435d MSport Xdrive
The amplified is dead and needs replacing but a new one is £500. My uncle's car who is now retired and hasnt got a lot of money to blow anymore.
The car has the Harmon Kardon sound system. Do I have to get the exact part number 9393194? Ideally I just want to buy a unit, for the old loom to be unplugged and the new one in without any tuning or messing around. |
Appreciate
0
|
06-17-2023, 03:00 PM | #13 |
New Member
2
Rep 10
Posts
Drives: BMW 328i GT
Join Date: May 2023
Location: Ocala, Fl
|
Can someone help!?
I got a HU swap from entry to NBT EVO, but before the swap my sound went out and screen got stuck on “bmw” logo and nothing worked, I figured that the speakers just blew out and it wouldn’t make sense to get new speakers and the screen is still stuck so I just swapped the HU and the screen and got a another set of used oem speakers from eBay, apparently to complete the retrofit I had to put the Combox in a loop and connect everything to the HU but now even with the new set of speakers and HeadUnit installed I still don’t get any audio through the car like no chimes, nothing from the radio, no audio from calls, or Bluetooth audio but everything works on screen. I’ve been doing research and checked all the (radio/sound) fuses n they’re fine none blown I need help!! |
Appreciate
0
|
01-08-2024, 11:20 PM | #14 | |
Private
12
Rep 59
Posts |
Quote:
Also before all the sound went out about a month ago dong and sound sounded distorted from the front left tweeter |
|
Appreciate
0
|
03-02-2024, 01:33 PM | #17 |
Enlisted Member
2
Rep 36
Posts |
Interested too
__________________
F31 320D Msport
205 Mi16 on Jenvey throttle bodies Vespa 300 hpe Honda NC30 |
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
no audio door chime |
|
|