The part number C2D6172 has been superseded to C2D51033. This is the water in fuel sensor for a diesel powered Jaguar XJ or XF.
For Jaguar XF (X250) 2008-2015 Rear Brake Caliper Set Left and Right
Coolant Expansion Tank C2Z11668 for Jaguar XF X250 Daimler XJ X351 2.7 D & 3.0 D
MASS AIR FLOW METER SENSOR FOR JAGUAR XF X250 XJ X350 X351 4R8Q12B579AC 2008-15
TPMS Tyre Pressure Sensor for Jaguar XF (X250) (08-15) - PRE-CODED
For Jaguar XF (X250) 2008-2015 Rear Right Brake Caliper