@optimum, try lifting ur car on neutral, take of the wheel, and check if its really, leaking if it is then u must get it replace before it starts krrrrr, krrr,
this the number of faisal bhai at shair shah.. 0321-2060012
this is mecca corporation i guess at Plaza, 0321-2118711
i bought my cars abs sensor from faisal bhai, as mecca corporation guy said to buy the whole new abs thingy, while faisal bhai is at the shairshah market so he gave me a sensor only, tuk it out from a cutted car in front of my.
i hope it helps