Mercedes-Benz 124 four-speed automatic transmission
Model: 722.4
Peculiarities:
* Electronic control
* Torque converter lock-up function
* Adaptive gear shift program
* Snow and winter modes
Gear ratios:
| Transfer | Gear ratio |
|—|—|
| 1 | 3,250 |
| 2 | 2,000 |
| 3 | 1,450 |
| 4 | 1,000 |
| Reverse | 2,840 |
Switching modes:
* D (Drive): Normal mode for most driving conditions.
*C (Economy): Economy mode with higher gears and early upshifts.
* S (Sport): Sport mode with faster downshifts and later upshifts.
* W (Winter): Winter mode that starts in 2nd gear for better traction on slippery surfaces.
* S/W (Sport/Winter): A combination of S and W modes, providing better performance in slippery road conditions.
Torque converter lock:
The torque converter locks in 3rd and 4th gears, significantly improving fuel economy and performance.
Adaptive shift program:
The transmission uses an electronic control unit (ECU) to adapt the gearshift program based on individual driving style.
Overheat protection:
The transmission is equipped with an overheat protection system that switches the transmission to neutral mode when excessive transmission fluid temperature is detected.