I've noticed if the shop doesn't match the car lift legs properly to the mercedes lift points, damage may be a result. There is no substitute for mercedes technical experience. If they don't have direct experience working on benz (ASE cert or not), I'm outta there.

I have never had much trouble, other than not being able to find a place that can align any vehicle properly.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200