Allright, this is basic for most people probably..The vacuum is just about everything to the servo. This is what multiplies your pedal force into the brake master cylinder. Without vacuum your braking is very much reduced in efficiency. Still works in an emergency but you have to apply a LOT of pedal pressure.
A2 was way ahead of its time!A2 long before "dieselgate"
Well, yes.Still there is a mechanical spring sound, and a little movment in the accelerator pedal, at a certain speed.No change in rpms or speed from time to time.I think at about 12 mph.May just be a system switching mode from low speed / parking to normal driving. Electric power steering does consume a lot of power.
If your LUK pump is fitted with hex head bolts, you will find that you can't use them with a Bosch pump. You will need the equivalent Allen screws or similar.After cleaning and then more than 1000 miles.New dirt is building up.
Looks like the tandem pump has to be replaced..
Does anybody know if the right torque settings for the Bosch pump is mentioned somewhere in this forum, and do I need to replace bolts with new ones?
Thanks for the Nm settings.If your LUK pump is fitted with hex head bolts, you will find that you can't use them with a Bosch pump. You will need the equivalent Allen screws or similar.
Top two screws are 20Nm, bottom two 10Nm.
RAB