fluid leaking on rear passenger wheel not break fluid

hi guys i noticed my rear passenger wheel and tyre is covered in fluid someone said its leaking from a seal as its not breakfluid any ideas

bearing hub has an o ring where it fits on the end of axle tube

could be diff oil

i have just had exactly the same thing on mine....was rear hub oil seal as previously suggested..

i originally thought it was brake fluid but wasnt...it was dripping down from centre of hub onto inside of disk and then onto tyre...

it cost me approx £6 for 2 for a 300tdi for the seals but it wasnt a job i was comfortable fitting being a ham fisted landy numpty!

im ****ting it now lol..abs.. traction light..and hill decline light. all come on could this have anything to do with the leak. im gunna get under and see if can sort it cheers guys