1. Disconnect the negative battery cable.
2. Drain the ATF into a container. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.)
3. Remove the radiator. (See RADIATOR REMOVAL/INSTALLATION.)
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Add ATF to the specified level. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT.)
7. Connect the negative battery cable.
8. Inspect for oil leakage from the oil pipes and oil hoses.
9. Inspect for coolant from the hoses.
10. Inspect the ATF level and condition. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION.)
11. Carry out the line pressure test. (See MECHANICAL SYSTEM TEST.)
12. Carry out the road test. (See ROAD TEST.)
WITH OIL COOLER


WITHOUT OIL COOLER


Radiator (In Tank Oil Cooler) Installation Note
1. The automatic transaxle oil cooler flushing must be performed whenever a transaxle is removed for service because the existing fluid may be contaminated, and to prevent contamination of new fluid.
Note
2. Follow the instructions in the manufacturers publication for flushing operation.
Oil Pipe, Hose Clamp, Oil Hose Installation Note
1. Apply compressed air to cooler-side opening, and blow any remaining grime and foreign material from the cooler pipes. Compressed air should be applied for no less than one minute.

2. Align the marks, and slide the oil hose onto the oil pipe until it is fully seated as shown.
Note

3. Install the new hose clamp onto the hose.
4. Verify that the hose clamp does not interfere with any other components.
Oil cooler flushing
Oil cooler disassembly/assemblyMazda 6 Service Manual: Disconnection of the negative battery cable
Before beginning any work, turn the ignition switch to LOCK position,
then disconnect the negative battery cable and wait for more than 1 minute
to allow the backup power supply of the SAS unit to deplete its stored
power. Disconnecting the battery cable will delete the memories of the
...
Mazda 6 Service Manual: Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle inspections
at the indicated intervals to ensure safe and dependable operation.
Bring any problem to the attention of an Authorized Mazda Dealer or qualified
service technician as soon as possible.
At Least Twice a Year (For ...