I’ve only just learned about and got my head around this. It’s the best idea I’ve received.
There’s two systems.
HydroBOOST and HydroMAX. They work the same but HydroMAX has the electric back up pump.
My system is the HudroBOOST so no pump. However, I am convinced the sound is a bit of air in the system. I thought that could be the case before o learned about the brake assist but now I know it make sense.
The brake assist is at the highest point and pretty much where the sound is coming from.
If it doesn’t clear itself in the colder weather I’ll drain the system.
GPappy I you certainly in the right ball park.
Thanks
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