Car in sig, 16k currently, mods since 9k miles. Had to have the front differential seal replaced at 15k. Other than that no issues. Weird though as I had an 08 328xi that had a leaking front diff as well at about the same mileage. Must be a poorly designed gasket. Keep an eye on it if you have an xdrive car!
--2011 335i xDrive coupe-6MT
--Premium/Sport/Cold Weather/Nav/Comfort Access/Harmon Kardon
--JB4 Stage 2 : BMS intake : Active Autowerke exhaust : ER charge pipe : cdv delete : M Sport shift knob : 12% tint : clear bra