Ændringer fra Ond en lille hissing sound from brake pedal sidde Picket skal
My brakes is making a hissing sound (like air coming free) when I brake but it isn't affecting the brakes, what could it be? Could it be a leak maybe? : r/Cartalk
Back of brake pedal leaking and making a hissing noise, whats the fix? (Mk5 GTI) : r/GolfGTI
Hissing sound when brake pedal is depressed! | Mercedes-Benz Forum