04 3.0L isnt turbo.

No N54/55 in the E53.

I've heard from friends that E53s are nearly as big of POSes as W163 MLs but admittedly that's me regurgitating third hand info. I do know both friends who have attempted to "flip" E53s have lost money.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i