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.

2004 Acura TL AutomaticFACTORY OEM SERVICE PROCEDURE

ATF Replacement

NOTE: Keep all foreign particles out of the transmission.

Bring the transmission up to normal operating temperature (the radiator fan comes on).
Park the vehicle on level ground, and turn the engine off.
Remove the drain plug (A), and drain the automatic transmission fluid (ATF).

Fig 1: Identifying Drain Plug (A) And Sealing Washer (B)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reinstall the drain plug with a new sealing washer (B).
Refill transmission with the recommended fluid through the filler hole (A) to the upper mark on the dipstick. Always use Acura ATF-Z1 Automatic Transmission Fluid (ATF). Using a non-Acura ATF can affect shift quality.
Automatic Transmission Fluid Capacity:

3.0 L (3.2 US qt) at change

7.0 L (7.4 US qt) at overhaul

Fig 2: Identifying Filler Hole (A), Filler Bolt (B) And Sealing Washer (C)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the ATF filler bolt (B) with a new sealing washer (C).

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.