You can't see them in those pictures, if you pull off the grey plastic covers with BMW written on them (they are just held on with a clip/dowel in a rubber grommet.
They are right at the back, can't miss them, the inlet sensor is right next to the eccentric shaft sensor. (Connector is round on the eccentric shaft)
The exhaust sensor is lower down, you should be able to follow the 8mm diameter conduit to the sensors.
In fact on the second photo you can see the two small pieces of conduit, each one goes to each sensor. You can't mix them up, the wires aren't long enough.
Yours looks like LHD as you main engine harness routes across to the left if looking from the front, the sensors are basically just under there, try the sensors on the right bank first so you can see better what your doing.
Hope that helps!
Last edited by stuartjohn24; 01-04-2013 at 01:58 PM.