You want to confirm not the rings brie you decide to do head job so hopefully you get some pressure even if not great. Changing out a valve or three not bad at all. I had to do 8/32 the last time I did a head overhaul. (broken timing chain whacked 1/3 of the valves)

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)