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: If a Warning Light Turns On or Flashes
If any warning light turns on/flashes, take appropriate action for each light. There is no problem if the light turns off, however if the light does not turn off or turns on/flashes again, consult an Authorized Mazda Dealer. The warning contents can be verified on the center display. 1. If the ...

Mazda 6 Service Manual: Engine coolant
ENGINE COOLANT LEVEL INSPECTION Verify that the coolant level in the coolant reservoir is between the F and L marks. If the engine coolant level is below L, remove the radiator cap and add coolant. (See COOLING SYSTEM SERVICE WARNINGS.) ENGINE COOLANT REPLACEMENT Warning Drain the ...