Mazda 6 Service Manual: No.5 engine stalls-after start/at idle

No.4 hard to start/long crank/erratic start/erratic crank

No.6 cranks normally but will not start

Other materials:

Mazda 6 Service Manual: Oil cooler
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 m ...

Mazda 6 Service Manual: Manually Shifting Down
You can shift gears down by operating the selector lever or the steering shift switches (some models). M6 → M5 → M4 → M3 → M2→ M1 Using selector lever To shift down to a lower gear, tap the selector lever forward (-) once. Using steering shift switch (Some model ...