Hello, I bought a lifting platform from Areso Link: https://www.areso-automotive.de/en/lift-it-2040basic-m-380v1 Technical data: Load capacity: 4000 kg Max. lifting height: 1.960 mm Height: 2.935 mm Width: 3.455 mm Through width: 2.600 mm Length of the short arms: 580 – 1.070 mm Length of the long arms: 920 – 1.400 mm Lifting time: approx.35 sec. Lowering time: approx.35 sec. Override plate: 20 mm I have the following problem now. I have today for the first time my father His Mercedes Gl 420 CDI Year of construction 2007 versu No success the lift shaft does not lift the vehicle up. Vehicle curb weight about 2600kg loaded about 2900kg So almost 3 tons there I still have air according to manufacturer because the lift 4 tons shaft in theory Unfortunately not in practice. I have already lifted up all possible only with this vehicle there are problems: e.g.: Peugeot 207, Opel Corsa, Vw Golf, Seat alhambra, Renault Kadjar, Audi A3, VW Touran,Opel Vektra, VW T4, Mercedes SLK etc. I would like to ask for Hil Page 6