The towing capacity shown below include the braked and unbraked towing capacity. Unbraked is when the trailer being towed does not have its own braking system. Braked is when the trailer being towed has its own braking system. The braked 2023 Mercedes-Benz GLS towing capacity is between 750 kg (0.75 tonnes) and 3500 kg (3.5 tonnes).
| Variant | Unbraked Capacity | Braked Capacity |
|---|---|---|
| 400D 4Matic X167 MY23 Automatic G-Tronic | 750kg | 3500kg |
| 450 4Matic (hybrid) X167 MY23 Automatic G-Tronic | 750kg | 3500kg |
| 400D 4Matic X167 MY23.5 Automatic G-Tronic | 750kg | 3500kg |
| 450 4Matic (hybrid) X167 MY23.5 Automatic G-Tronic | 750kg | 3500kg |
| 600 4Matic FL (mhev) X167 MY24 Automatic G-Tronic | 750kg | 3500kg |
| 63 4Matic+ FL (mhev) X167 MY24 Auto Torque Clutch | 750kg | 3500kg |
| 450 D 4Matic FL (mhev) X167 MY24 Automatic G-Tronic | 750kg | 3500kg |
| Variant | From Max Torque | From Max Power |
|---|---|---|
| 400D 4Matic X167 MY23 Automatic G-Tronic | nm @ rpm | 243kw @ 3600rpm |
| 400D 4Matic X167 MY23.5 Automatic G-Tronic | nm @ rpm | 243kw @ 3600rpm |
| 450 4Matic (hybrid) X167 MY23 Automatic G-Tronic | 500nm @ 1600rpm | 270kw @ 5500rpm |
| 450 4Matic (hybrid) X167 MY23.5 Automatic G-Tronic | 500nm @ 1600rpm | 270kw @ 5500rpm |
| 450 D 4Matic FL (mhev) X167 MY24 Automatic G-Tronic | nm @ rpm | 270kw @ 3600rpm |
| 63 4Matic+ FL (mhev) X167 MY24 Auto Torque Clutch | 850nm @ 2250rpm | 450kw @ 5750rpm |
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