Quote:
Originally Posted by yousefnjr
I say this mostly because there's enough room to live under the Z's hood, engine is completely uncovered. No fan clutch on the front makes getting to the belts etc easy too. E46 engine bay is pretty tight in comparison, although to be fair the rear interference isn't hard to remove. Agreed about aftermarket though 
Z
M3
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It's 4 torx bolts that hold on the cabin air filter housing that's on top of the engine... takes ~30 second to remove.
Or, my car during my most recent valve adjustment (at ~144,000 miles):
