BMW Engines Are Gigantic Pieces Of Shit
If you move to more late model stuff, the situation gets a bit more dire. Let’s take the E46 M3, for example.
It featured a 333-horsepower naturally aspirated inline six cylinder
engine that was more unreliable than an AA meeting sponsored by Miller
Lite. These engines were were plagued with connecting rod bearing failures, issues with the variable cam timing (VANOS), crankcase ventilation failures, hard starting, and their cooling systems were made of plastic and sealed, ensuring catastrophic failure
where scalding hot coolant would shoot out of your engine bay,
overheating your engine, at which point your head gasket would blow.
The same goes for every M-branded car that BMW has made in the last
decade, and these problems are well-documented. The E60 M5's V10 will chew through its rod bearings in less than 60,000 miles and has rampant and costly SMG pump failures. The E92 M3 will also devour its rod bearings in short order. The new M3 and M4 engines have crank hub failures that take the engine out of sync and smash the valves into the pistons. They also suffer from oil cooler issues,
in which overheating is a valid concern, especially if you’re the kind
of person that drives your car like the PR reps claim you can around a
track.
(Jalopnik.com)
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