Just got my C300 last week and since day two there has been this rattle which sounds like its coming from behind the driver and passenger seats and sounds like an empty glass bottle. I checked there is nothing in the car or in the trunk.

Anyone else had any similar rattle. I called my local dealer and he said he will call on Monday to schedule a service and figure out what it is.

I also had an appointment with the delivery specialist and I knew more than she did..haha

I was disappointed to find out that with the Multimedia package the talk button on the steering wheel is useless. She said that connecting the iPhone to the wired usb and saying hey Siri will work, haven't tried that yet though.

How does the Auto climate button work?
And does the car detect the last bluetooth connection and connect automatically for music and phone?

 

Since no one has resounded, I am assuming that no one else had this rattle issue.

 

Haven't had that specific rattle noise but have had others. Are both of your rear seats securely latched in place? Maybe fold them both down and then put them back with a bit of force to ensure a secure latch is made. Or perhaps is the same rattle sound I had on my car but with the back seat belt connectors? I had a loose piece in my passenger seat where the seat belt clicks into.

 

Did u figure out the rattle?

 

i just saw this. I have a C300 and from my experience there are two possible causes. The first is if you have glasses in the overhead glass storage compartment. The second could be your seatbelt buckle In your case it may be the former.

 

Is your problem solved? I have the same problem with my car and I couldn't find the source of the rattle coming from my w205's back seat area.