The 8-speed robotic gearbox 724.1 or Mercedes 8G-DCT has been produced since 2019 and is installed on front-wheel drive and all-wheel drive models of the MFA2 platform such as GLA-Class and GLB-Class. This preselective robotic gearbox with two wet clutches is produced at a plant in Romania.
This series includes: 7G-DCT, AMG SpeedShift DCT, 8G-DCT.
Specifications
| Production years | since 2019 |
| Type | robotic transmission |
| Number of gears | 8 |
| Type of drive | front / all wheel |
| Engine volume, l | up to 2.0 |
| Torque output, Nm | up to 520 |
| Recommended oil | MB 236.22 |
| Oil capacity, liter | 8.0 |
| Replacing the oil | every 60,000 km |
| Replacing the filter | every 60,000 km |
| Gearbox lifespan, km | ~300 000 |
| Weight, kg | 83 |
Gear ratios Mercedes 8G-DCT
Using the example of a Mercedes GLB-Class 2020 with a 2.0 liter diesel engine:
| Main | n/a |
| 1st | 4.257 |
| 2nd | 2.987 |
| 3rd | 1.961 |
| 4th | 1.375 |
| 5th | 1.000 |
| 6th | 0.776 |
| 7th | 0.604 |
| 8th | 0.480 |
| Reverse | 3.575 |
The transmission was installed on:
- Mercedes A-Class W177 since 2019;
- Mercedes B-Class W247 since 2019;
- Mercedes CLA-Class C118 since 2019;
- Mercedes GLA-Class H247 since 2019;
- Mercedes GLB-Class X247 since 2019.
Disadvantages of the Mercedes 724.1 gearbox
- This is a completely new gearbox and there are no large statistics on its malfunctions yet.
- On specialized forums they complain about various glitches when driving in traffic jams or starting up a hill.
- A number of new firmwares have been released and most software problems have been fixed.
- As before, with overly active driving you can burn out clutches even up to 100,000 km.
- And don’t forget to renew the lubricant in the gearbox or the mechatronics will become clogged with wear products.
