Quote:
Originally Posted by Skip MacLean
I'm in too; but grumpy right now, as my X5 6MT just ate its engine. Ever heard of a bend piston ring and broken crown? 10 psi compression on #1... Absolutely no idea how. Wife and son were driving along on I5 to Bay Area, minding their own business when the engine suddenly lost power and started running rough. Trouble codes indicated misfire #1, #3. I got a pair of coils and set of plugs and set off in pursuit. Replaced those, no better. Compression test indicated above result and boroscope revealed tip of piston ring sticking above piston crown. Looks like engine replacement is in the near future. :-(.
Regarding 6MT. I like the car and the character but the gear spacing is not great, especially on 1st and 2nd gears; 1st is too low and 2nd is probably also a little low for good normal driving. Also, shifter on all BMW MT's is sloppier and less precise than I think it should for BMW's pedigree and their excellence in other driving characteristics.
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Are you the original owner? So sorry to hear about engine troubles, the M54 is usually a pretty stout motor! Any good BMW engine rebuilders out by you?
The 6MT is a rare find (some would say more rare than pre-facelift with 5-speed), and although the ratios are short especially 1st and 2nd, just be glad you have that 6th for the highway, at 80 mph I'm screaming at about 4k rpm's in 5th!