1. Remove the front door unit.
2. Remove the cover, then remove the bolt.

3. For protector-equipped vehicles, pull out the protector tab from the latch and remove the protector.

4. Disconnect the rod.
5. Remove the front outer handle.
6. Turn the key cylinder in the direction indicated by the arrow (1) and move the hook to the notch.

7. Pull the key cylinder towards you (2) to remove it.
8. Install in the reverse order of removal.
Rear door latch and lock actuator removal/installation
Front outer handle removal/installationMazda 6 Service Manual: Intake air temperature (iat) sensor inspection
Resistance Inspection
Note
Perform the following inspection only when directed.
1. Disconnect MAF/IAT sensor.
2. Measure the resistance between the MAF/IAT sensor terminals D and E using
an ohmmeter.
If not as specified, replace the MAF/IAT sensor.
If the MAF/IAT sensor is okay, but ...
Mazda 6 Service Manual: Cylinder head gasket
CYLINDER HEAD GASKET REPLACEMENT
Warning
Fuel vapor is hazardous. It can very easily ignite, causing
serious injury and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death and damage. Fuel ...