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.
2009 Acura CSX Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Cooling System
COOLING SYSTEM SPECIFICATION
| Item | Measurement | Qualification | Standard or New |
|---|---|---|---|
| Radiator | Coolant capacities (including engine, heater, hoses, and reservoir) Use Acura Long Life Antifreeze/ Coolant Type 2 (K20Z2) | M/T: engine overhaul | 6.6 L (1.74 US gal) |
| M/T: coolant change | 4.3 L (1.14 US gal) | ||
| A/T: engine overhaul | 6.5 L (1.72 US gal) | ||
| A/T: coolant change | 4.2 L (1.11 US gal) | ||
| Coolant capacities (includes engine, heater, hoses, and reservoir) Use Honda Long Life Antifreeze/ Coolant Type 2 (K20Z3) | Engine overhaul | 6.8 L (1.80 US gal) | |
| Coolant change | 4.5 L (1.19 US gal) | ||
| Coolant reservoir | Coolant capacity | 0.4 L (0.11 US gal, 0.09 Imp gal) | |
| Radiator cap | Opening pressure | 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi) | |
| Thermostat | Opening temperature | Begins to open | 76-80°C (169-176°F) |
| Fully open | 90°C (194°F) | ||
| Valve lift at fully open | 8.0 mm (0.31 in.) |
Factory Service Tools
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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.