FYI, we returned our 2014 Smart EV in Jun-2017. It probably wasn't necessary, but I cleaned it up really well before returning. The dealer was impressed. But he doesn't do the inspections because it is contracted to a third party company. So we got charged as follows:
$252 for excess wear and tear on the tires
$138 for misc taxes or taxable charges
$430 for vehicle turn-in fee
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$820 total
Arranged for a lease end pre-inspection of our MY15 ED with MBFS. Scheduled for about a month before the actual turn in and yesterday was my appointment. You have the choice of dealer, home or office for the inspection BUT the appointment "window" is 5 hours. I chose home and fortunately the inspector made me one of his first of the day.
No special cleaning/detailing, not even a quick car wash.
The third party company contracted by MBFS was AutoVin. The inspector was very pleasant and suggested it should take about a half hour - I joked because it is only half a car?
Equipped with a tablet and camera he went to work. Pretty thorough to include taking pix of items such as key fobs and owner's manual. To no surprise, he found nothing of concern.
The full report is uploaded to their website a day or two later complete with all details and pictures.
Apparently tires are "chargeable" if they show less than 4/32" - all four came in at 5/32".
Summary of report . . .
Wear & Tear $0.00
Excess Wear & Tear $0.00