I bought a BMW 540i Touring recently, this car came with a hydraulic trunk (hydraulic open and closed via the key) Now the problem is that the hydraulic system was empty for a long time. When I opened the trunk i heared the hydro pump buzzing. Now I've filled up the system with hydraulic fluid and got the trunk working ish... The trunk opened half and closed half when I've pushed the Button on my key. But during testing the hydro pump started to make a More and more noice, and the trunk does not automatically open or close anymore. And when operated by hand the trunk is realy havy (complains from my wife ). Now I've disconnected the electricity from the hydro pump in case of breaking it more...
Does anyone know that this feature will work again.
Thanks for your help