Mercedes GLB AMG: Which Version Should You Buy?
The Mercedes GLB AMG catalogue contains one mechanical version, GLB AMG 35 2.0 DCT 4Matic, offered in the original first-generation SUV from 2019 and again after the March 2023 restyling. Both entries have the same 306 hp turbocharged Gasoline engine, 400 Nm of torque, 8-speed Robotic gearbox, AWD, 1,755 kg kerb weight, and 5.2-second 0–100 km/h time.
The Mercedes GLB AMG catalogue contains one mechanical version, GLB AMG 35 2.0 DCT 4Matic, offered in the original first-generation SUV from 2019 and again after the March 2023 restyling. Both entries have the same 306 hp turbocharged Gasoline engine, 400 Nm of torque, 8-speed Robotic gearbox, AWD, 1,755 kg kerb weight, and 5.2-second 0–100 km/h time. The meaningful choice is therefore not between different engines or power outputs, but between the original model and its restyled counterpart. Based strictly on the available specifications, the original has the more favorable stated fuel-consumption and CO₂ figures, while the restyled version does not gain power or performance.
Mercedes GLB AMG generations compared
The Mercedes GLB AMG has one generation represented in two catalogue periods. The 1 generation began in 2019 as an SUV 5-doors and includes one version: GLB AMG 35 2.0 DCT 4Matic. Its production stop is not specified.
A restyling of the same generation began in March 2023. The 1 generation, restyling remains an SUV 5-doors and also includes one version named GLB AMG 35 2.0 DCT 4Matic. Its production stop is likewise not specified. Treating the 2023 update as a restyling within the first generation is important because it did not create a separate second generation in the supplied catalogue data.
The recorded engine output, torque, acceleration, top speed, transmission, drive system, weights, clearance, tank capacity, and wheel-size choices are identical before and after the restyling. The numerical changes concern combined fuel consumption and CO₂ emissions, while the rear-brake label also changes.
Mercedes GLB AMG 35 engine and specs
| Catalogue period and exact version | Power | Torque | Displacement | Fuel | Cylinders and layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|
| 2019–present: GLB AMG 35 2.0 DCT 4Matic | 306 hp (225 kW) at 5,800 rpm | 400 Nm at 3,000–4,000 rpm | 1,991 cc | Gasoline, 98 | 4, Inline | Turbo | 8-speed Robotic | AWD |
| March 2023–present restyling: GLB AMG 35 2.0 DCT 4Matic | 306 hp (225 kW) at 5,800 rpm | 400 Nm at 3,000–4,000 rpm | 1,991 cc | Gasoline, 98 | 4, Inline | Turbo | 8-speed Robotic | AWD |
Both versions use a front, transverse engine with Direct injection (direct), 4 valves per cylinder, a compression ratio of 10, and an 83 × 92 cylinder bore and stroke. Because each develops 306 hp from 1,991 cc, both produce approximately 153.7 hp per litre. Neither catalogue period has a power-density advantage.
The engine and drivetrain figures also show that the 2023 restyling did not introduce a higher-output GLB AMG 35 2.0 DCT 4Matic. Both versions have exactly 306 hp and 400 Nm, so the difference in output is 0 hp and 0 Nm.
No GLB AMG 45 version is present in the supplied data. Likewise, no GLB 200, GLB 250, AMG package, or AMG Line specification is included, so these cannot be compared with the GLB AMG 35 2.0 DCT 4Matic here.
Mercedes GLB AMG performance and mpg
| Catalogue period and exact version | 0–100 km/h | Top speed | City consumption | Highway consumption | Combined consumption | CO₂ |
|---|---|---|---|---|---|---|
| 2019–present: GLB AMG 35 2.0 DCT 4Matic | 5.2 seconds | 250 km/h | 9.3 L/100 km | 6.5 L/100 km | 7.6 L/100 km | 173 g/km |
| March 2023–present restyling: GLB AMG 35 2.0 DCT 4Matic | 5.2 seconds | 250 km/h | not measured | not measured | 9.2 L/100 km | 209 g/km |
The original and restyled versions have identical performance: each reaches 100 km/h in 5.2 seconds and has a top speed of 250 km/h. A 0–60 mph figure is not measured in the supplied data, so it should not be substituted for the available 0–100 km/h result.
For economy, the original GLB AMG 35 2.0 DCT 4Matic has the stronger catalogue figures. Its stated combined consumption is 7.6 L/100 km, compared with 9.2 L/100 km for the restyled version. That is a difference of 1.6 L/100 km, with the restyled figure approximately 21.1% higher.
The original version also records 173 g/km of CO₂, while the restyled version records 209 g/km. The difference is 36 g/km, or approximately 20.8%. Both are classified as Euro 6.
A complete city-and-highway comparison is not possible. The original records 9.3 L/100 km in the city and 6.5 L/100 km on the highway, whereas both corresponding figures for the restyled version are not measured.
These figures alone do not establish why the restyled model has higher stated combined consumption and CO₂ output. They show only that its recorded values are higher; no test method or explanatory information is provided.
Mercedes GLB AMG dimensions, weight, and wheels
No exterior length, width, height, or wheelbase is supplied for either catalogue period, so those Mercedes GLB AMG dimensions are not measured here. The available size-related specifications are weight, ground clearance, tank capacity, and wheel sizes.
| Catalogue period and exact version | Kerb weight | Gross weight | Ground clearance | Fuel tank | Wheel sizes |
|---|---|---|---|---|---|
| 2019–present: GLB AMG 35 2.0 DCT 4Matic | 1,755 kg | 2,260 kg | 122 mm | 60 L | 235/50 R19; 255/40 R20; 255/35 R21 |
| March 2023–present restyling: GLB AMG 35 2.0 DCT 4Matic | 1,755 kg | 2,260 kg | 122 mm | 60 L | 235/50 R19; 255/40 R20; 255/35 R21 |
The gap between kerb and gross weight is 505 kg for both versions. Each also carries approximately 5.74 kg of kerb weight per horsepower, or about 174.4 hp per tonne based on kerb weight. Since their weights and power outputs match exactly, neither version offers a better power-to-weight ratio.
Both catalogue periods use Independent, spring suspension at the front and rear. The original GLB AMG 35 2.0 DCT 4Matic has Ventilated disc front brakes and Disc ventilated rear brakes. The restyled version retains Ventilated disc front brakes, while its rear brakes are labelled Disc in the data.
Which Mercedes GLB AMG 35 version should you buy?
Choose the original 2019-onward GLB AMG 35 2.0 DCT 4Matic if the decision is based only on the supplied numbers. It matches the restyled model’s 306 hp, 400 Nm, 5.2-second 0–100 km/h time, 250 km/h top speed, AWD system, 8-speed Robotic gearbox, 1,755 kg kerb weight, 122 mm clearance, and 60 L tank. At the same time, its recorded combined consumption is lower by 1.6 L/100 km and its CO₂ output is lower by 36 g/km. It also has measured city and highway figures, making its economy profile more complete.
Choose the March 2023 restyled GLB AMG 35 2.0 DCT 4Matic only if the restyling itself matters more than a numerical specification advantage. Within the supplied data, it delivers no additional horsepower, torque, acceleration, top speed, clearance, tank capacity, or wheel-size choice. Its city and highway consumption are not measured, and its stated combined consumption and CO₂ figures are higher.
No price or MSRP is available, so the question of “what the extra money buys” cannot be answered financially. There are also no reliability, problem, equipment, grille, interior, or for-sale records in the data. Consequently, this comparison cannot claim that either version is more reliable or better equipped. On measurable catalogue specifications alone, the original GLB AMG 35 2.0 DCT 4Matic is the more compelling choice because it preserves the same performance while carrying the better stated economy and emissions figures.