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]Gauges and meters
In the Subaru Solterra, the gauges and meters are designed to provide
the driver with clear, real-time driving information, helping to maintain awareness
of vehicle performance, battery condition, and overall system status during every
journey.
Meter display
■ Locations of gauges and meter ...
Engine Oil Replacement [Mzr 2.0, Mzr 2.5]
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Wheels
For the Subaru Solterra, any wheel that shows signs of bending, cracking,
or severe corrosion must be replaced immediately. Continuing to use a damaged wheel
can lead to tire separation or a serious loss of vehicle control while driving.
Wheel selection
When selecting replacement wheels for th ...