1. Disconnect the negative battery cable.
2. Remove the front bumper. (See FRONT BUMPER REMOVAL/INSTALLATION.)
3. Remove the headlight. (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
4. Suport the radiator and the condenser using the wire.
5. Remove the bolt.
6. Remove the bumper reinforcement.

7. Install in the reverse order of removal.
Front bumper disassembly/assembly
Rear bumper removal/installationMazda 6 Service Manual: Knock sensor inspection
Note
Perform the following test only when directed.
Resistance Inspection
1. Turn the ignition switch to LOCK.
2. Disconnect the knock sensor connector.
3. Measure the resistance between the knock sensor terminals A and B using an
ohmmeter.
If not as specified, replace the knock sens ...
Mazda 6 Service Manual: Water pump
1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.) (See
ENGINE COOLANT REPLACEMENT.)
3. Loosen the water pump pulley bolt to remove the drive belt. (See DRIVE
BELT REPLACEMENT.)
4. Remove in the order indicated in the table.
5. Insta ...