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 MANUALSACURA20043.5RLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 8 (ENGINE COOLING SYSTEM SPECIFICATIONS)BLEEDING COOLING SYSTEM
2004 Acura 3.5RL
Bleeding Cooling System
2004 Acura 3.5RLSECTION Bleeding Cooling System
WARNING: This page is about a different car, the 2001 Acura MDX, 2001 Acura Integra, 2001 Acura 3.5RL, 2001 Acura 3.2TL, and 2001 Acura 3.2CL. However, it is still accessible from the selected car via links, so may be relevant.
Always bleed air from cooling system after replacing coolant. Bleed cooling system as follows:
- Set heater for maximum heat. Remove radiator cap. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture.
- On 3.5RL, loosen bleed bolt on top of thermostat housing and fill radiator with 50/50 water-coolant mixture to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt to 87 INCH lbs. (9.8 N.m).
- On all other models, fill radiator to base of filler neck with 50/50 water-coolant mixture.
- On all models, with radiator cap removed, start and operate engine to normal operating temperature. Add coolant as necessary. Tightly install radiator cap, run engine again and check for leaks.
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.