beeping

I'm wondering if anyone can tell me how to deactivate the horrendous beeping noise that comes on when you're in reverse gear. I have no idea why anyone at Mercedes thought it would be a good idea to have a loud, distracting beeping sound when you're trying to concentrate on reversing. I, &...

Just wondering if anyone has an idea on this please? It's a 2003 W209 CLK320. I parked up as usual, got out and locked the doors. The car then started beeping - not the alarm siren but a beeping at 1 second intervals. Unlocking the doors, putting key in ignition, even starting the engine did not...