I've just moved house and mislaid my Mercedes owner manual.

However an orange warning light has been flashing in recent days and I'm not
sure what it's telling me-although I suspect it's a braking issue.

To describe it's basically a circle with rounded vertical dashes on either
side.

Also when it flashes intermittently it causes interference to my radio.

The car is due for a service soon, but could someone please enlighten me
while I find the manual.

Thanks for taking such a newbit query!