Unexplained Knocking With Leakage.

[almaff]

Hi, my Grand Voyager (56 Plate) started knocking after I went over one of those nasty speed humps, it seemed to get worse and worse and sounded as if it was coming from the passenger side, It sounded as if it was coming from inside the dash board, when I got out to have a look under the passenger side wheel arch, I noticed fluid dripping on to ball joint. Does anyone have an idea what it could be? Being bank holiday, I won't be able to get it to a garage until Tuesday. Many thanks

[tomada3]

if its red fluid its either gearbox oil or power steering