Mazda 6 Service Manual: Inspection during removal, disassembly
- When removed, each part should be carefully inspected for malfunction,
deformation, damage, and other problems.

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 ident ...
All disassembled parts should be carefully arranged for reassembly.
Be sure to separate or otherwise identify the parts to be replaced from
those that will be reused.
...
Other materials:
Mazda 6 Service Manual: Interior
Front
Rear
...
Mazda 6 Service Manual: Inspecting Coolant Level
WARNING
Do not use a match or live flame in the engine compartment. DO NOT ADD
COOLANT WHEN THE ENGINE IS HOT: A hot engine is dangerous. If the engine has
been running, parts of the engine compartment can become very hot. You could be
burned. Carefully inspect the engine coolant in the coola ...