Check The Cylinder Bore

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Using a 50... 100-mm internal vernier gauge, take measurements at 3 positions diagonally in lateral direction -A- and longitudinal direction -B- .
- Max. deviation from nominal measurement: 0.08 mm.
  
  Fig 1: Identifying Cylinder Bore Dimension
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Grinding Dimension In mm	Cylinder Bore Diameter In mm
Basic Dimension	83.006... 83.014
Repair Stage	83.046... 83.054