MB Vario simply overburdened

Hello, I’ve been driving the Vario for more than three years, among other things, and I have to say that this vehicle doesn’t deserve the star. It breaks what can be broken and also smaller defects (defected light bulbs, loose parts on the dashboard,….) accumulate extremely. This concerns all vehicles of the fleet and not only one. The oil consumption is astronomical and also considerable defects, as leaks in the brake line we had already three times. here and there unfortunately again a problem Only the engine was so far problem-free. Also the air conditioning is far too weak and does not manage to cool the vehicle to the set temperature. At yesterday’s temperatures in the sun it was finally overwhelmed. Even after hours it was still around 30 degrees. Mfg