Removing rear end mountings (third row) without access hole
Make a cut-out in the seat rail for the seat cushion.
Measure up the cut-out according to the following dimensions.
A=11 mm.
B=25 mm.
C=15 mm.
Push the carpet to one side.
Mill out the access hole. Use a rotary file.
Vacuum up the dust/debris from the milling. Wipe clean the seat rail for the seat cushion.
Fold back the carpet.