My 2011 GLK 350's climate control unit was dead this morning. When I started the vehicle, no lights came on, and a loud sound (blower?) in the engine compartment kicked in. And continued for about 30 seconds after switching off the vehicle. Assume that a fuse got blown, but where is it in the fuse box? And could there be another issue. Planning on calling the dealer in the morning and would like to rule out something stupid like a fuse. Thanks in advance for help!

you should probably check the manual: http://www.mbusa.com/mercedes/servic...owners_manuals

There is a newer thread for a similar problem in the C-class W204:
https://mbworld.org/forums/c-class-w...start-car.html