Im being told by my dealer, that the low pitched buzzing/humming noise coming from my Bolero headunit is normal, and is the same noise made by every headunit with such a large screen.

It can be heard when the volume is either low down or muted, so I assume it is coming from the screen,

Is this normal, or are they feeding me a load of bull, like they have done many times before??

A load of bull....

I have a brand new car with a Bolero.......it's silent.

I have a brand new car with a Bolero.......it's silent.

To be fair, mine does start off quiet, but after about 20min starts making the noise.

I havent' noticed any buzzing sound coming from the Bolero screen, yet the truth is that the screen gets warm after some time of operation. I suppose the external cover of your Bolero is a bit slackened somewhere so it starts buzzing when things start to warm up. They should check it and fix it properly.

Edited 19 May, 201016 yr by GiannisB

Never notice a buzzing from mine... But it's rarely on low volume either