I have a 2013 GLK 350 that has a key lock wheel lugs and the key was lost to remove them from the wheels.. Any suggestions?

Wheel locks, such as McGard, provide stickers with a key code, and suggest pasting one in the car's owners manual. If you can find it, call the wheel lock maker and order a replacement key. Or go to a tire store and ask them to yank the lock bolts. Most shops have bolt extractor tools for this purpose because lost keys are a daily event for them.