MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo
1. Remove the vacuum hose..
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the intake manifold side, and that air cannot be blown in the opposite direction.

If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.
SKYACTIV-G 2.0
1. Remove the vacuum hose..
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the vacuum pump side, and that air cannot be blown in the opposite direction.

If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.
Vacuum Hose Removal/Installation [Skyactiv G 2.0]
Vacuum Pump Inspection [Skyactiv G 2.0]After Service Precaution [Mzr 2.0, Mzr 2.5]
WARNING:
Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious
injuries or death and damage. When installing the fuel hose, perform “Fuel Leakage
Inspection” described below.
A person charged with static electricity could cause a fire or explosion,
...
Emergency Driving Stop System
In the Subaru Solterra, the Emergency Driving Stop System is engineered
to automatically slow down and bring the vehicle to a controlled stop within its
lane if the driver becomes unable to continue driving, such as in the case of a
sudden medical emergency or loss of responsiveness.
While ...
Using LATCH Lower Anchor
Your Mazda is equipped with LATCH lower anchors for attachment of specially
designed
LATCH child-restraint systems in the rear seats. Both anchors must be used,
otherwise the
seat will bounce around and put the child in danger. Most LATCH child-restraint
systems
must also be used in conjunc ...