Johnherb

After a 1,400 mile drive, my '11 E550 was covered in salt and frozen slush. I went to a wand wash, which I have used many times before. After cleaning the car and filling up with gas, the fuel door would not close and lock. This was a week ago and it has been bitterly cold since the wash. Thinking something was frozen inside the compartment, I heated the area with a hair dryer, to no avail. The pop up button inside the compartment is not seized.
I am at a loss to figure this out. Any ideas folks?

ejmb2010

I had a similar issue, try cycling the locks using you key fob.

noka

See if it's related to this: https://mbworld.org/forums/e-class-w...-latching.html

Live Oak

Probably is . . .

Raymond Lee

Try hold very beginning of the filler cap rubber cord and drop the cap so it would stretch out the rubber cord and then retry. It should work.

homeofstone

cycle all doors and open fuel door all the way open then close.

Johnherb

Yesterday I joined the site and posted a request for help to try and figure out why my fuel door wouldn't close.
Well, many of you came through for me and the problem was solved. A common thread in the responses was that the tether cord interfered with the closing. So, a few minutes ago in -25C weather I went to the garage and fiddled with the tether for a few seconds and, lo and behold, the door closed. It had never crossed my mind that this was the problem all along.
My thanks to everyone who responded. I can imagine that the dealership might have suggested a whole new compartment, although this thought might be a little unfair as I have not had a reason yet for service help as I only purchased the car 6 months ago.