Has anyone replaced their engine driven vacuum pump with an electric model. This applies to my 1987 Mercedes 300D where I cannot get any vacuum to operate the Central Locking system because I cant get the onboard electric version to work(The pump runs, but will not function because it gets no signal from the door actuators)
I am thinking of installing my own electric vacuum pump or connecting to the Engine Vacuum.
Can anyone recommend an electric vacuum pump model and comment on its lifespan?