[Almaretto]

Since vehicle production 11/2016 or after programming with ISTA/P 3.60 / ISTA 4.02.10 (I level F0xx 16-11-501)
or a more recent version, the fanfare sounds an acoustic signal twice when the vehicle is locked with the engine running.
The operating concept was changed to warn the customer when locking the vehicle
that the engine is running.

As of ISTA/P 3.63.0 and/or ISTA 4.08.1x, the conversion "Conversion deactivation for horn when locking while engine is running" is available .

Guess I will have to wait. I only have ISTA+ 4.07.11.20826.