In the mean time, you can pull the bulb and often clean up
the contacts. The wires will be burned. Clean it off with
some sandpaper and then use a small screwdriver to kind of
push the bulb contact wires up a bit. That will buy you a
bit more time. The lens assembly is easy to remove once you
know how -- the owners manual has nice drawings on this.

Oh, the left one goes out first because we spend more time
waiting to turn left (so the bulb is on more often). Eventually,
the right bulb would have the same problem.

.