Acura TL Type S Auto to Manual Conversion

The Acura TL Type S automatic to manual transmission conversion involves replacing the factory automatic transmission with a manual gearbox, typically from a compatible Honda/Acura model. This comprehensive guide covers the conversion process, required parts, installation steps, programming considerations, and performance benefits for transforming your automatic TL Type S into a manual transmission vehicle.

1. Conversion Overview 2. Required Parts List 3. Tools and Equipment 4. Step-by-Step Installation 5. ECU Programming 6. Clutch System Setup 7. Drivetrain Modifications 8. Testing and Calibration 9. Performance Benefits 10. Common Issues 11. Maintenance Considerations

Conversion Overview

The auto to manual conversion transforms your Acura TL Type S from an automatic transmission to a manual gearbox, enhancing driving engagement and performance. Compatible manual transmissions include the 6-speed from TL manual models or similar Honda transmissions.

ComponentDescription
Manual Transmission6-speed gearbox from compatible Acura/Honda model
Clutch AssemblyComplete clutch kit including pressure plate and disc
FlywheelManual transmission compatible flywheel
Shifter AssemblyComplete shifter mechanism and cables
Pedal AssemblyManual clutch pedal and brake pedal modification
ECUManual transmission compatible ECU or reprogramming
DriveshaftManual transmission specific driveshaft
MountsTransmission mounts and brackets
Hydraulic SystemClutch master cylinder and slave cylinder
Wiring HarnessModified wiring for manual transmission operation

Required Parts List

Complete parts inventory needed for successful conversion.

  1. Manual transmission (6-speed from 2007-2008 TL Type S manual)
  2. Clutch kit: pressure plate, clutch disc, release bearing
  3. Flywheel (manual specific)
  4. Clutch pedal assembly and master cylinder
  5. Shifter assembly with cables and linkage
  6. Manual transmission ECU or K-tuner for programming
  7. Transmission mounts and brackets
  8. Driveshaft (manual transmission length)
  9. Starter motor (manual transmission compatible)
  10. Various bolts, clips, and hardware specific to manual conversion

WARNING! Ensure all parts are from compatible models to avoid fitment issues.

Tools and Equipment

Essential tools for the conversion process.

  1. Transmission jack and engine support bar
  2. Complete socket set (metric)
  3. Torque wrench (capable of 100+ ft-lbs)
  4. Clutch alignment tool
  5. Bleeding kit for hydraulic system
  6. ECU programming software (Honda HDS or K-tuner)
  7. Hydraulic line flaring tool if custom lines needed
  8. Various pry bars and specialty transmission tools

CAUTION! Use proper safety equipment and transmission jack for heavy components.

Step-by-Step Installation

ECU Programming

ECU must be programmed for manual transmission operation to prevent error codes and ensure proper function.

Options: Manual transmission ECU swap, K-tuner reprogramming, or professional ECU flashing.

Programming steps: Disable automatic transmission codes, configure manual transmission parameters, set rev matching if desired, program reverse light operation, calibrate speed sensor for manual gear ratios.

Clutch System Setup

Hydraulic clutch system installation and bleeding procedure.

  1. Install clutch pedal assembly and master cylinder
  2. Route hydraulic line to transmission slave cylinder
  3. Bleed system using proper bleeding procedure
  4. Adjust clutch pedal free play (10-15mm typical)
  5. Test clutch engagement and disengagement

Tip: Use DOT 4 brake fluid and ensure no air in system for proper clutch operation.

Drivetrain Modifications

Required drivetrain changes for manual conversion.

  1. Manual transmission specific driveshaft installation
  2. Differential compatibility check (typically same unit)
  3. Axle shaft inspection and replacement if needed
  4. Transmission mount modification or replacement
  5. Exhaust clearance verification with manual transmission

WARNING! Ensure proper driveshaft length and universal joint compatibility.

Testing and Calibration

Post-installation testing procedures to ensure proper operation.

  1. Initial start-up: Check for abnormal noises, verify clutch operation
  2. Gear engagement test: Test all gears including reverse
  3. Road test: Test acceleration, shifting smoothness, clutch engagement
  4. ECU diagnostics: Scan for error codes, monitor transmission parameters
  5. Final adjustments: Clutch pedal adjustment, shifter cable adjustment

CAUTION! Perform initial testing in safe, controlled environment.

Performance Benefits

Manual transmission conversion advantages for Acura TL Type S.

BenefitDescription
Improved AccelerationBetter power transfer and reduced drivetrain loss
Enhanced ControlDirect gear selection and engine braking
Weight ReductionManual transmission typically lighter than automatic
Driver EngagementMore connected driving experience
Maintenance SimplicityEasier clutch replacement vs automatic rebuild
Resale ValueManual TL Type S models often command premium prices

Common Issues

Potential problems and solutions during conversion.

IssuePossible CauseCorrective Action
Gear grindingClutch not disengaging fullyBleed hydraulic system, adjust pedal
ECU error codesAutomatic transmission codes activeReprogram ECU for manual operation
VibrationDriveshaft angle or balanceCheck transmission mounts, driveshaft balance
Reverse lights not workingWiring not connectedConnect reverse light switch wiring
Clutch slippageImproper installation or wearInspect clutch assembly, adjust pedal

Reset: Clear ECU codes after conversion completion.

Maintenance Considerations

Post-conversion maintenance requirements.

Regular clutch system inspection, transmission fluid changes every 30,000 miles, shifter cable adjustment as needed, clutch hydraulic fluid replacement every 2 years.

Service: Consult professional mechanics for complex issues; specialized Acura/Honda transmission shops recommended.

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