It really depends on which dealership you turn it in to.
One dealer might have a problem with something that another will completely overlook or not care about.
If you plan to buy or lease another BMW from them within 6 months(I believe) they will probably let you slide with alot more.
Besides damage, they mainly only care about the wheels and tires.
Make sure they're stock and make sure you have the required tread.
Miles will kill you too. . . keep those under the limit
I returned my loaded 2006 BMW 325i last December with several mods.
Window Tint | Debadged | Kersher Front Lip | ACS Side Skirts | ACS Rear Apron | Mesh Kidney Grille | Blackline Tail Lights |
The only thing i needed to do was slap the stock wheels and tires on. . .
They really don't examine the car all too well. . . Then again I was flirting with the girl that did the inspection pretty well so maybe she gave me a break
Basically keep all your stock parts when leasing.