Caliper Inspection: Piston

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Piston sliding surface is plated, do not polish with emery paper even if rust of foreign materials are stuck to sliding surface.
Check piston for score, rust, wear, damage or presence of foreign materials. Replace if any of the above conditions are observed.

Check piston surface for corrosion, wear, and damage. If any non-standard condition is detected, replace applicable part.