Acura TL Manual Transmission Fill Bolt

The Acura TL manual transmission fill bolt is a critical component for proper transmission maintenance and fluid changes. This bolt provides access to the transmission fluid fill port and must be properly installed and torqued to prevent leaks and ensure optimal transmission performance. Below are key sections for identification, location, specifications, removal, installation, and maintenance procedures.

Identification and Location

The manual transmission fill bolt is typically located on the driver's side of the transmission case, positioned above the drain bolt for easy access during fluid changes.

Technical Specifications

• Thread Pitch: M12 x 1.5 mm
• Bolt Length: 20-25 mm
• Head Size: 17 mm hex
• Torque Specification: 33-40 ft-lbs (45-54 Nm)
• Seal Type: Integrated crush washer
• Material Composition: Carbon steel with zinc plating
• Temperature Rating: -40°F to 300°F (-40°C to 149°C)

Removal Procedure

Proper removal of the fill bolt requires specific tools and safety precautions to prevent damage to the transmission.

1. Park vehicle on level surface and engage parking brake.
2. Locate fill bolt on driver's side transmission case.
3. Clean area around fill bolt to prevent contamination.
4. Use 17mm socket and ratchet to loosen bolt.
5. Turn counterclockwise until bolt releases.
6. Inspect bolt threads and washer for damage.

WARNING! Never remove fill bolt when transmission is hot. Allow to cool to prevent burns and fluid overflow.

Installation Procedure

Correct installation ensures proper sealing and prevents fluid leaks.

1. Clean bolt threads and transmission threads with brake cleaner.
2. Inspect crush washer; replace if damaged or worn.
3. Apply light coat of transmission fluid to bolt threads.
4. Hand-tighten bolt to ensure proper thread engagement.
5. Torque to specification using torque wrench.
6. Verify no leaks after installation.

CAUTION! Do not overtighten as this may damage transmission case threads.

Fluid Requirements

Use only Acura-approved manual transmission fluid for optimal performance.

Torque Specifications

Proper torque application is critical for leak prevention and thread integrity.

• Standard Torque: 36 ft-lbs (49 Nm)
• Minimum Torque: 33 ft-lbs (45 Nm)
• Maximum Torque: 40 ft-lbs (54 Nm)
• Crush Washer Replacement: Required with each removal
• Thread Lubrication: Light transmission fluid only

Common Issues

Several common problems can occur with the transmission fill bolt.

Maintenance Schedule

Regular inspection and maintenance ensures long-term reliability.

1. Inspect fill bolt during every oil change
2. Check for leaks around bolt head
3. Replace crush washer every fluid change
4. Verify torque specification annually
5. Clean threads during each service

Recommended Service Interval: Every 30,000 miles or 2 years

Safety Precautions

Always follow safety procedures when working with transmission components.

• Wear safety glasses during removal/installation
• Use jack stands when working under vehicle
• Allow transmission to cool before service
• Use proper torque wrench for installation
• Dispose of used transmission fluid properly

WARNING! Transmission fluid is slippery and can cause falls. Clean spills immediately.

Troubleshooting

Professional Service: Recommended for stripped threads or severe damage

Acura Support: Contact local Acura dealership for genuine parts