1. Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Remove the knock sensor attachment bolt to remove the knock sensor.

3. Install in the reverse order of removal.
Tightening torque 16.2-23.8 N·m
{1.66-2.42 kgf·m, 12.0-17.5 ft·lbf}
Knock sensor inspection
Heated oxygen sensor (ho2s) inspectionMazda 6 Service Manual: Door lock timer unit removal/installation
1. Disconnect the negative battery cable.
2. Remove the glove compartment. (L.H.D.)
3. Remove the bolt.
4. While inclining the door lock timer unit along the body panel in the
direction indicated by the arrow, disengage the bracket hook from the hole in
the body panel.
5. Disconnect the do ...
Mazda 6 Service Manual: Key Battery Replacement
If the buttons on the transmitter are inoperable and the operation indicator
light does not flash, the battery may be dead.
Replace with a new battery before the transmitter becomes unusable.
CAUTION
Make sure the battery is installed correctly. Battery leakage could occur
if it is not in ...