LF, L3
1. Remove the under cover.
2. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.)
3. Remove the oil filter cover, and drain the engine oil into a container. (See OIL FILTER REPLACEMENT.)
4. Remove in the order indicated in the table.
5. Use a clean rag to wipe off the mounting surface on the oil cooler.
6. Install in the reverse order of removal.
7. Inspect the oil level.
8. Start the engine and inspect for oil leakage.


Oil filter
Oil panMazda 6 Service Manual: Idle air control (iac) valve inspection
Note
Perform the following inspection only when directed.
Operation Test
Carry out the Idle Air Control Inspection. (See Idle Air Control System
Inspection.)
If not as specified, perform the further inspection for the IAC valve.
Resistance Inspection
1. Disconnect the negative batt ...
Mazda 6 Service Manual: Engine tune-up
IGNITION TIMING INSPECTION
Note
Ignition timing is not adjustable.
Ignition timing verification requires WDS or equivalent.
1. Turn off the electrical loads.
2. Warm up the engine as follows.
(1) Start the engine.
(2) Maintain the engine speed at approx. 3,000 rpm until the
cooli ...