[BB-Driver]

Hi I have a f30 340i that horn 2x very loud when unlocking.
And that’s not the acoustical confirm (alarm)
Anybody know how to solve / code that annoying horn sound?

Thanks

You should not have any horn when unlocking. Only possible horn should be when locking with engine. Are you setting off OBD alarm?

Is car stock or have there been any hardware or software changes?

Car was coded from us to ECE but not from me. I will recode FEM an see what happens.
Where you setting obd alarm
Car is stock only hardware changes are new or used BMW’s parts in front because it has an accident 
A few months ago.

[BB-Driver]

Car has also eps fault that can’t be delete

[benoos]

Hi I have a f30 340i that horn 2x very loud when unlocking.

Did you resolve it? Have the same

F30 BMW two loud horn signals when unlocking

This is not short acoustic unlocking, that are two loud "hoonk hoonk", only while unlocking cars (no matter from key or CA).

And not every time, only after car sleep, 3-4min minimum

Car has alarm SA302, but tried code them out and horn was still there.
Tried coding everything in FEM with "horn", no changes, only works when Horn_bus not active, but there is no horn from steering wheel also
Tried coding in FZD associated with DWA, but not found any special.
Tried coding whole car to default - no changes.

Car is 2016/11, soft 2018-03-530

Any ideas whats that?

[david51]

Hello

Have you tried on the FZD module

FZD_07

3002 DWA, 9 /Akustische Quittierung Entschaerfen/nicht aktiv = 00

[BB-Driver]

Hi I have a f30 340i that horn 2x very loud when unlocking.

Did you resolve it? Have the same

F30 BMW two loud horn signals when unlocking

This is not short acoustic unlocking, that are two loud "hoonk hoonk", only while unlocking cars (no matter from key or CA).

And not every time, only after car sleep, 3-4min minimum

Car has alarm SA302, but tried code them out and horn was still there.
Tried coding everything in FEM with "horn", no changes, only works when Horn_bus not active, but there is no horn from steering wheel also
Tried coding in FZD associated with DWA, but not found any special.
Tried coding whole car to default - no changes.

Car is 2016/11, soft 2018-03-530

Any ideas whats that?

no the guy never come back but would be interesting if you solve it

[__mkw]

Car has also eps fault that can’t be delete

did You resolved this problem with eps ?

[david51]

Hi I have a f30 340i that horn 2x very loud when unlocking.

Did you resolve it? Have the same

F30 BMW two loud horn signals when unlocking

This is not short acoustic unlocking, that are two loud "hoonk hoonk", only while unlocking cars (no matter from key or CA).

And not every time, only after car sleep, 3-4min minimum

Car has alarm SA302, but tried code them out and horn was still there.
Tried coding everything in FEM with "horn", no changes, only works when Horn_bus not active, but there is no horn from steering wheel also
Tried coding in FZD associated with DWA, but not found any special.
Tried coding whole car to default - no changes.

Car is 2016/11, soft 2018-03-530

Any ideas whats that?

no the guy never come back but would be interesting if you solve it

have you tried my solution?

[david51]

Hi I have a f30 340i that horn 2x very loud when unlocking.

Did you resolve it? Have the same

F30 BMW two loud horn signals when unlocking

This is not short acoustic unlocking, that are two loud "hoonk hoonk", only while unlocking cars (no matter from key or CA).

And not every time, only after car sleep, 3-4min minimum

Car has alarm SA302, but tried code them out and horn was still there.
Tried coding everything in FEM with "horn", no changes, only works when Horn_bus not active, but there is no horn from steering wheel also
Tried coding in FZD associated with DWA, but not found any special.
Tried coding whole car to default - no changes.

Car is 2016/11, soft 2018-03-530

Any ideas whats that?

no the guy never come back but would be interesting if you solve it

Before asking if the person has the solution have you already tried my solution?

[benoos]

FZD_07

3002 DWA, 9 /Akustische Quittierung Entschaerfen/nicht aktiv = 00

I checked earlier, it is Nicht active by default. I even code out whole DWA, and the same happened, so probably it is not from DWA.

On the screen you showed Optische Quittierung Entschaerfen, this one is Active, but Optische means Optical. Dont think it is.

IMPORTANT NEWS is that the car honks only after some sleep time (3-5min), when you open it shortly after closing, it is quiet

[tonemoz]

Why not just program and code the whole car with latest ista?