Got a bmw x5 e53 been super reliable for me drives great idles rough haven’t been able to track down the problem. Have done camshaft position sensors valve cover gasket, coolant hoses , icv, dmtl pump, headlights, spark plugs and ignition coils new brakes roaders and suspension, as long as a maf sensor and a bunch of other stuff I’m forgetting. AWD tires are brand new have used them only for a couple months. CAR IS A AUTOMATIC NOT MANUAL. Car has done me great just ready to get a truck now car smokes sometimes it just started happening comes from the front thinking maybe a hose? Price dropped for that reason shoild be an easy fix .