Airflow Inspection
1. Remove the vacuum hose..
2. Blow air into the vacuum hose using your mouth from the vacuum pump side and verify that the air flows to the intake manifold side, then blow air from the intake manifold side and verify that the air does not flow to the vacuum pump side.

If there is any malfunction in the check valve, replace it with the vacuum hose as a single unit..
Air Bypass Valve Inspection [Mzr 2.3 Disi Turbo]
Compression Inspection [Mzr 2.0, Mzr 2.5]Drive Belt Inspection [Mzr 2.0, Mzr 2.5]
MZR 2.0
A/C drive belt
NOTE:
Drive belt deflection/tension inspection is not necessary because of the
use of the maintenance-free type A/C drive belt.
Replace the drive belt if it is found to be damaged during visual inspection,
or if there is a malfunction or noise in th ...
Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle
inspections at the
indicated intervals to ensure safe and dependable operation.
Bring any problem to the attention of an Authorized Mazda Dealer or qualified
service
technician as soon as possible.
When Refueling
Bra ...
Clutch Cover Inspection [C66 M R]
1. Remove the clutch cover..
2. Perform the following procedures to inspect the clutch cover.
If it exceeds the maximum specification, replace the clutch cover..
a. Measure the wear of the diaphragm spring fingers.
Clutch cover diaphragm spring fingers maximum depth
0.6 ...