Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 20 (ENGINE COOLING SYSTEM - (EXCEPT HYBRID))SPECIFICATIONSGENERAL SPECIFICATIONS
2010 Mercury Mariner Hybrid, AWD
General Specifications
2010 Mercury Mariner Hybrid, AWDSECTION General Specifications
WARNING: This page is about a different variant/trim than selected.
GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Pressure Tests | |
| Complete cooling system maximum pressure | 150 kPa (21.7 psi) |
| Pressure relief cap | 120 kPa (17.4 psi) to 150 kPa (21.7 psi) |
| Radiator (out of vehicle) | 138 kPa (20 psi) |
| Thermostat Opening Temperatures | |
| Thermostat fully open (2.5L) | 106°C (223°F) |
| Thermostat fully open (3.0L 4V) | 98.9°C (210°F) |
| Thermostat starts to open (2.5L) | 90°C (194°F) |
| Thermostat starts to open (3.0L 4V) | 84°C-88°C (183°F-190°F) |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.