2011 C300 4matic
I'm a newbie on this site and hoping someone could help me out.
Just purchased a C300 with parking sensors.
As I aproach an obstacle the light work as I get close to the object but I don't hear any beeping sound .
Is there anything I should be looking at. Someone told me to wash the sensors on the bumpers but still doesn't work.
Also, when I use the Nav. I can barely hear the person talking. Is there a volume preset I should be looking for.
Ant info would be greatly appreciated.
Thanks




