Have s320 cdi, yesterday was changing FM stations and static appeared. it is on almost every channel apart from radio 2 or 4

It still finds new stations as I drive along the motorway, but they are just static

all other frequencies are fine AM MW and SW

is there a fuse that cover the fm antenna, or any other fix to try, I checked all fuses in rear SAM and they are fine

 

Not sure wether there would be a fuse but you can do a test with Xentry: go into the sub-menu 'tuner' and check how your antenna performs.

 

I had this once. Here is what fixed it for me: A total reboot of the COMAND system. Press and hold the "eject button" on the CD/DVD changer until the system reboots. When mine finished rebooting, the static was gone completely. Hope this works for you as well.

 

thanks for the response, will try xentry tomorrow, have already tried command reboot, made no difference

 

For me, the static was in every source: FM, SAT, iPod, etc. Sorry that didn't work. What is Xentry?