Quote:
Originally Posted by Alan Smithee
...and up until the twin-turbo 3.0 N54, they only built one other turbocharged gasoline model (the 745i, in very limited numbers, in the early 1980s). A new concept? No. Has BMW proven long-term reliability with gasoline-powered turbos? Hardly.
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Fair enough. How about the early '80s BMW turbo diesel? Turbos are a pretty simple concept, and they aren't different between gasoline and diesel engines. Do you see the turbo as the failure point, or the resulting specific power output of the engine?
I just don't think the turbos are a reliability or durability issue. Sure they have only been around for four years. So has the E70 platform, so it isn't any more proven. How about the new 8 speed ZF transmissions? One year now. The modified x-drive? Since 2010. All more prone to failure than a turbocharger.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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