Hello,
my mini recently developed a random misfire in cylinders 1,3 and 4. I had both a compression and leakdown test done and these are the results.

cyl 1: 180
cyl 2: 175
cyl 3: 165
cyl 4: 160 (10% leak)

I’m not an expert but that doesn’t look like good compression to me. I’ve already checked the intake valves and they look pretty clean. Also tried replacing spark plugs and coils before I did this test. Anyone have any ideas as to what it could be?