Mazda 6 Service Manual: No.15 emission compliance

No.14 poor fuel economy

No.16 high oil consumption/leakage

Other materials:

Mazda 6 Service Manual: Intermittent concern troubleshooting
  Vibration Method 1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below. Note There are several reasons vehicle or engine vibration could cause an electrical malfunction. Some of the things to check for are: ...

Mazda 6 Service Manual: Locking, Unlocking with Door- Lock Switch
All doors lock automatically when the lock side is pressed. They unlock when the unlock side is pressed. Driver's door Front passenger's door To lock all the doors from an open front door, press the lock side of the door lock switch and then close the door. NOTE When locking the doors t ...