Mazda 6 Service Manual: Disassembly
- If the disassembly procedure is complex, requiring many parts to be
disassembled, all parts should be marked in a place that will not affect
their performance or external appearance and identified so that reassembly
can be performed easily and efficiently.

While correcting a problem, also try to determine its cause. Begin work
only after first learning which parts and subassemblies must be removed and
disassembled for replacement or repair. Aft ...
When removed, each part should be carefully inspected for malfunction,
deformation, damage, and other problems.
...