Mazda 6 Service Manual: No.18 cooling system concerns-runs cold

No.17 cooling system concerns-overheating

No.19 exhaust smoke

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Mazda 6 Service Manual: Power Window Lock Switch
This feature prevents all power windows from operating, except the driver's power window. Keep this switch in the locked position while children are in the vehicle. Locked position (button depressed): Only the driver's power window can be operated. Unlocked position (button not depressed): All ...

Mazda 6 Service Manual: Nonreturn valve inspection
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.) 2. Siphon the fuel from the fuel tank. Note Nonreturn valve is integrated in the fuel tank. The nonreturn valve is normally closed by the spring force. 3. Verify that the nonreturn valve is closed. If the nonretu ...