The Honda MDSA 8-speed automatic transmission was produced in Japan from 2014 to 2020 and was installed exclusively on the first-generation Acura TLX sedan with a 2.4-liter K24W7 engine. This transmission features a combination of a torque converter and a dual-clutch system.
8DCT family: MDSA, M4JA.
Specifications
| Type | automatic transmission + DCT |
| Number of gears | 8 |
| Type of drive | front |
| Engine volume, l | up to 2.4 |
| Torque output, Nm | up to 250 |
| Recommended oil | Acura ATF-TYPE 2.0 |
| Oil capacity, liter | 4.1 |
| Replacing the oil | every 60 000 km |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
Gear ratios Honda MDSA
Using the 2015 Acura TLX with a 2.4-liter engine as an example:
| Main | 4.57 |
| 1st | 3.08 |
| 2nd | 2.18 |
| 3rd | 1.61 |
| 4th | 1.22 |
| 5th | 0.96 |
| 6th | 0.74 |
| 7th | 0.62 |
| 8th | 0.48 |
| Reverse | 2.22 |
Using
The transmission was installed on:
- Acura TLX 1 (UB1) in 2014 – 2020.
Disadvantages of the Honda MDSA gearbox
- The main complaints are jerky shifting, but firmware updates help;
- The dual clutch clutches need to be replaced at 50% wear or they will burn out;
- The small heat exchanger quickly becomes clogged with dirt, and the transmission begins to overheat.
