Obviously do not yank on handle…it will break.

Once you get door latch to release, you can pry the door open with your fingers - or try to.
Spray silicone on rubber door seals to reduce this in future.

Also spray brake cleaner into side latch as well as thru gaps in handle - preferable when it’s above freezing.. Then spray silicone in the same areas to reduce the chance of latches freezing up…nothing’s worse when it’s 10 degrees or colder and you can't get the E53 door to latch close…happened to me last night.