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 MANUALSMAZDA1999626 ES, 2.5 D, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 100 (SPECIFICATIONS & DRIVE BELT ROUTING)COOLING SYSTEM SPECIFICATIONS2003
1999 Mazda 626 ES, 2.5 D, Standard
Cooling System Specifications: 2003
1999 Mazda 626 ES, 2.5 D, StandardSECTION 2003
WARNING: This page is about a different car, the 2004 Mazda 6 and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
COOLING SYSTEM SPECIFICATIONS (2003)
| Application | Specification | ||||
|---|---|---|---|---|---|
| Coolant Replacement Interval | (1) 105,000 Miles Or 60 Months | ||||
| Coolant Capacity | |||||
| 2.3L | 7.9 Qts. (7.5 L) | ||||
| 3.0L | 10.8 Qts. (10.2 L) | ||||
| Pressure Cap | |||||
| 2.3L | 16-20 psi | ||||
| 3.0L | 14-18 psi | ||||
| Thermostat Opens | |||||
| 2.3L | |||||
| Starts To Open | 176-183°F (80-84°C) | ||||
| Fully Open | 206°F (97°C) | ||||
| 3.0L | |||||
| Starts To Open | 184-190°F (84-88°C) | ||||
| Fully Open | 210°F (99°C) | ||||
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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.