Re: weird smell
Depending on how "foul" it is, it could be from gear oil if they have to check the differential levels. (not sure how inspections work as we don't have them here)
Also, if they have to check that, the diff dipstick has a notch on some of them so that it rests correctly. If they didn't get the notch in the nothced open spot on the case, it could be coming from there.
Try checking that as well as checking to see if the smell goes away completely when you hit the "circ" button on the climate control. This recirculates the air in the cabin instead of bringing in air from outside the car.
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