Mazda 6 Quiz
Cooling system

Thermostat

In this manual: Cooling system
General information — 42Engine — 23Lubrication system — 10Cooling system — 9Fuel and emission control systems — 161Engine electrical system — 17Clutch — 21Manual transaxle — 10Automatic transaxle — 110Front and rear axles — 20Steering system — 15Braking system — 104Suspension — 34Body — 201Body electrical system — 287Heater and air conditioner systems — 89Technical data — 1Special tools — 1
~1min read
THERMOSTAT REMOVAL/INSTALLATION

1. Remove the plug hole plate.

2. Disconnect the negative battery cable.

3. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)

4. Remove the drive belt. (See DRIVE BELT REPLACEMENT.)

5. Remove the washer tank.

6. Remove the P/S oil pump.

Note
  • Remove the P/S oil pump with hoses and pipe still connected.

7. Remove in the order indicated in the table.

8. Install in the reverse order of removal.

9. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT.)

10. Inspect the engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION.)



THERMOSTAT INSPECTION

Inspect the thermostat for the following.

  • Closed valve in room temperature
  • Opening temperature and lift of the valve

- If not as specified, replace the thermostat.

Test yourself

A quick Mazda 6 quiz: every answer comes with an explanation and a link to the manual page.