How to check transmission fluid on a 2005 Acura TL?

Yes—if your 2005 Acura TL has a traditional transmission dipstick, you can check the ATF level at home; if it uses a sealed, dipstick-free setup, level checks typically require dealership tools and service.

Know your TL’s transmission setup

To know the exact procedure, confirm whether your car has an ATF dipstick. Some 2005 TLs still use a dipstick, while others rely on a sealed transmission that requires professional tools to read the level. Check the owner’s manual, the hood’s label, or ask a dealer if you’re unsure.

Dipstick-equipped models

If your TL has a traditional ATF dipstick, follow these steps to check and, if needed, top off the transmission fluid:

1. Park on a level surface and engage the parking brake. Start the engine and allow it to reach normal operating temperature, approximately 180–200°F (82–93°C).


2. With the engine running and the transmission in Park, locate and pull out the ATF dipstick. Wipe it clean with a lint-free rag or paper towel.


3. Reinsert the dipstick fully, then pull it out again to read the level. Check the fluid against the HOT marks on the dipstick.


4. If the level is below the HOT range, add the correct type of ATF through the dipstick tube using a clean funnel, a small amount at a time (about 1/4 pint or less). Wait a moment for fluid to settle and recheck.


5. Continue adding small amounts as needed until the level sits within the HOT range. Avoid overfilling, which can cause foaming and shifting problems.


6. Inspect for leaks around the transmission pan, seals, and cooler lines. If you notice a leak, address it before driving further.

After completing these steps, drive the car briefly and recheck the fluid level when the engine is at operating temperature to confirm the reading remains within the recommended HOT range.

Sealed transmission without a dipstick

For TLs that do not have an ATF dipstick, checking the fluid level is not straightforward at home. The level is typically monitored via specialized tools and temperature-based procedures used by technicians, and improper DIY attempts can cause damage.

• Verify whether your car truly lacks a dipstick by consulting the owner’s manual or a dealer. Some models may label the transmission as sealed but still provide a dipstick in a tucked location.


• If there is no dipstick, rely on the recommended service intervals and symptoms to guide maintenance. Signs of transmission trouble (slipping, hard shifts, unusual noises, or warning lights) warrant professional inspection.


• Regularly check for external leaks (pan gaskets, sealings, cooler lines) and keep an eye on transmission performance. Do not attempt to remove plugs or open the transmission pan unless you are a trained technician.


• When in doubt, schedule a service appointment with an authorized Acura dealer or a trusted shop that has the equipment to read the fluid level accurately at the correct temperature.

In sealed-transmission scenarios, attempting a DIY top-off or level check can lead to overfill or incomplete readings. Professional service ensures the level and fluid type are correct for the TL’s transmission.

What fluid to use and general maintenance tips

Always use the transmission fluid type specified by Acura for the 2005 TL. The manual or under-hood label will indicate the correct ATF specification (for example, DW-1 or Z1, depending on production lot). Do not mix fluids. If you’re unsure, contact an Acura service center for the exact specification and quantity, especially if you’re topping off after a leak or a fluid change.

Fluid color and smell matter too. Clean, bright red fluid with a slightly sweet odor is normal. Dark, burnt or harried smells, or a gritty texture, indicate contamination or wear and may require a fluid change and inspection of the transmission.

Summary

Key points to remember: determine whether your 2005 TL has a dipstick; if yes, follow a careful, temperature-appropriate check and top-off process using the correct ATF type and avoid overfill. If no dipstick, rely on professional service for accurate level checks and maintenance. Regular checks, leak inspections, and using the proper ATF help maintain smooth shifting and extend the life of the transmission. If you notice shifting issues or unusual noises, consult a qualified technician promptly.

Where is the transmission dipstick on an Acura?

Typically, it's located to the right of the oil dipstick on front-wheel-drive cars. Remove the dipstick and assess the fluid's condition by rubbing the fluid around between your thumb and forefinger. Transmission fluid should be nearly clear with a pink hue.

Do I check my transmission fluid while the engine is running?

Yes, for automatic transmissions, you should check the transmission fluid with the car running. It's crucial to let the engine warm up first, then shift through all the gears while keeping the brake pressed, and finally check the fluid level while the engine is in park or neutral. Checking while the engine is on ensures the fluid is circulating properly and the torque converter is full, giving a more accurate reading. 
This video demonstrates the importance of checking transmission fluid while the engine is running: 59sOBD InsightsYouTube · Sep 3, 2024
Why check with the engine running

• Accurate reading: The fluid circulates through the transmission, including the torque converter, while the engine is running. This prevents a false high reading that can occur if the fluid has drained back into the pan when the engine is off. 
• Hot fluid: Checking the fluid when the engine is warm gives the most accurate reading because transmission fluid expands as it heats up. Your dipstick often has separate "hot" and "cold" markings. 
• Functionality: The engine needs to be running to activate the transmission and its internal parts, which is necessary for a proper check. 

How to check automatic transmission fluid

1. Make sure the car is on a level surface and set the parking brake. 
2. Start the engine and let it run until it reaches normal operating temperature. 
3. Press the brake pedal and slowly shift the gear selector through all the gears (P, R, N, D, etc.), pausing for a few seconds in each. 
4. Return the gear selector to the park (P) position. 
5. Locate the transmission fluid dipstick, pull it out, and wipe it clean with a rag. 
6. Re-insert the dipstick completely, then pull it out again to check the fluid level against the "hot" marks. 

You can watch this video for a step-by-step guide on checking transmission fluid: 52sJiffy LubeYouTube · Jun 29, 2015
Important considerations

• Consult your owner's manual: The specific procedure can vary between vehicles. Some modern vehicles may not have a dipstick, or some may have different checking procedures. 
• Manual transmissions: The procedure for checking manual transmission fluid is different and typically requires the engine to be off and the vehicle to be on a lift. 
• Safety: Be careful when working around a running engine. Some sources recommend using wheel chocks for added safety. 

How to check transmission fluid level if there is no dipstick?

To check transmission fluid without a dipstick, use the vehicle's transmission fill and check plugs, which are typically on the side and top of the transmission case, respectively. This procedure requires the engine to be running and at operating temperature, and the vehicle to be on a level surface. The fluid level is correct when it begins to trickle out of the inspection plug, or a specialized dipstick can be inserted into the fill plug to measure the level.
 
This video demonstrates how to check transmission fluid level on a vehicle with no dipstick: 53sEricTheCarGuyYouTube · Jan 11, 2019
Using the transmission fill and check plugs 

1. Warm up the vehicle: Drive the car to bring the transmission to its normal operating temperature. 
2. Park on a level surface: Ensure the vehicle is parked on a flat, level surface for an accurate reading. 
3. Locate the plugs: Find the transmission fill plug (usually on top) and the check or inspection plug (on the side of the transmission case). Consult your vehicle's repair manual for the exact locations. 
4. Check the level:
   • With the engine running, slowly loosen and remove the check plug. 
   • If fluid flows out, it indicates the level is correct, so let it flow until it becomes a trickle, and then replace the plug. 
   • If no fluid comes out, the level is low. Add fluid through the fill plug until it starts to flow out of the check plug. 
5. Add fluid (if needed): If the level is low, add the correct type of transmission fluid through the fill plug using a pump until it just begins to trickle from the check plug. 
6. Tighten the plugs: Reinstall both the check and fill plugs securely. 
7. Check for signs of damage: While checking, note the fluid's color and smell. If it looks dark, brown, or has a burnt smell, it may be time for a service. 

Alternative method: Use a specialized dipstick 

1. Purchase a universal dipstick: Buy a flexible, compatible dipstick designed for vehicles without a standard transmission dipstick. 
2. Locate the fill plug: Find the fill plug on the transmission. 
3. Check the level: With the engine running and at operating temperature, remove the fill plug and insert the specialized dipstick until it reaches the bottom of the pan. 
4. Read the fluid level: Pull the dipstick out and check the fluid level against the markings. 
5. Add fluid: If the level is low, add fluid through the fill plug and recheck until the correct level is reached. 

How much transmission fluid does a 2005 Acura TL take?

Or you can simply measure how much you removed from the transmission pan. And I did just as a check and it is three. Quarts. Now the last step is of course checking the fluid.