2005 4.4i k50mils. Does anyone have any experince of having gas odor after stoping engine. It feels pretty strong on driver's side close to rear wheel. Stays max half on hour and then gone. I checked under the car no visual leaks. I don't like local dealer who is just after my money without serious help.

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X5 4.4i 2005
sport, premium & cold package
328i 2008
premium package