1. Remove the air filter.
2. Inspect the air filter.
Note

Air filter removal/installation
A/c unit removal/installationMazda 6 Service Manual: Cell Phones
WARNING
Please comply with the legal regulations concerning the use of communication
equipment in vehicles in your country: Use of any electrical devices such
as cell phones, computers, portable radios, vehicle navigation or other devices
by the driver while the vehicle is moving is dangerous ...
Mazda 6 Service Manual: System Canceling
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS)
is turned off, press the Lane-keep Assist System (LAS) & Lane Departure Warning
System (LDWS) OFF switch.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF
indicator light tu ...