depends on which engine.1.0,1.2litre looks like a large black plastic nut with a a smaller nut on top,unscrew anti clockwise,lift off ,take out filter,clean out housing,fit new filter and o ring.do not over tighten it can crack.front left of engine. 1.4,1.6 front left of engine.best reached from underneath car unscrew anti clockwise,can be very tight .lightly oil o ring on new filter and screw on,there are torque settings to tighten.dont forget to drain oil first and refit drain plug.
xs11, February 2010
