Mercedes-Benz GL X166 GL 400 (333 Hp) 4MATIC G-TRONIC


Overall Rating

8.5 / 10
Safety N/A / 5
Not Rated
Engine 4.8 / 5
Value 3.8 / 5
Performance 4.5 / 5
Comfort 4.7 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz GL:

The Mercedes-Benz GLS, formerly Mercedes-Benz GL-Class, is a full-size luxury crossover SUV produced by Mercedes-Benz since 2006. In each of its generations it is a three-row, seven-passenger vehicle positioned above the GLE. The GLS is considered the flagship of the marque's SUV lineup, although the body-on-frame G-Class is more expensive and has been in production longer....(Read more on Wikipedia)

X166 Overview:

Mercedes-Benz GL (X166). With 480 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~11.75 l/100km). At around 2360 kg, it’s on the heavier side. All‑wheel drive provides excellent grip, ideal for off‑road use. Acceleration is good (0–100 km/h in 6.7 s). The top speed reaches 240 km/h. A sport utility vehicle offering higher ground clearance and versatile cargo space. With seating for 7, it’s perfect for larger families.

Safety Rating
Not rated
Euro NCAP Year N/A
Adult Occupant N/A
Stars N/A
Expert Note:
The Mercedes-Benz GL (X166) was not directly tested by Euro NCAP. However, Mercedes-Benz vehicles of this era generally demonstrate strong passive and active safety features, often achieving high ratings in similar tests.

GL 400 (333 Hp) 4MATIC G-TRONIC Verdict:

Rating 4 stars

Performance Verdict

A smooth and refined V6 offering a good balance of power (6.7s 0-100km/h) and efficiency, providing ample performance for most situations without the V8's thirst.

Fuel Economy

More economical than the V8 petrol options (9.2-9.6 l/100 km combined), offering a reasonable compromise between performance and fuel consumption for a large SUV.

Best Use Case: Balanced daily driver, family trips, those seeking a refined petrol engine with better economy than a V8.

Pros and Cons:

Pros:

  • • Luxurious and spacious 7-seater interior
  • • Powerful and refined engine options (especially V8s and BlueTEC diesel)
  • • Excellent ride comfort and highway stability
  • • High-quality materials and craftsmanship
  • • Strong off-road capability with 4MATIC

Cons:

  • • High purchase price and running costs (fuel, maintenance)
  • • Large size can be challenging in urban environments and parking
  • • Complex electronics and air suspension can be expensive to repair
  • • Not directly tested by Euro NCAP

Specifications:

Specifications are compared to those of the previous generation(X166: 2012 - 2015).

General:
Brand:Mercedes-Benz
Model:GL
Generation:X166
Modification (Engine):GL 400 (333 Hp) 4MATIC G-TRONIC
Start of production:2014
End of production:2015
Powertrain Architecture:Internal Combustion engine
Body type:SUV
Seats:7
Doors:5
Engine:
Power:333 Hp @ 5250-6000 rpm. Same horsepower
Power per litre:111.1 Hp/l [21mm less]
Torque:480 Nm @ 1600-4000 rpm.
Engine Model/Code:M 276.821 More details about the engine M 276.821
Engine displacement:2996
Number of cylinders:6
Engine configuration:V-engine
Number of valves per cylinder:4
Fuel injection system:Direct injection
Engine aspiration:BiTurbo, Intercooler
Valvetrain:DOHC
Engine oil capacity:7 l
Coolant:10.5 l
Engine layout:Front, Longitudinal
Cylinder Bore:88 mm mm
Piston Stroke:82.1 mm mm
Compression ratio:10.5:1
Maximum engine speed:6300 rpm.
Performance:
Fuel Type:Petrol (Gasoline)
Fuel consumption (economy) - urban:11.6-11.9 l/100 km
Fuel consumption (economy) - extra urban:7.8-8.3 l/100 km
Fuel consumption (economy) - combined:9.2-9.6 l/100 km
Emission standard:Euro 6
Acceleration 0 - 100 km/h:6.7 sec
Acceleration 0 - 62 mph:6.7 sec
Maximum speed:240 km/h
Weight-to-power ratio:7.1 kg/Hp, 141.1 Hp/tonne
Weight-to-torque ratio:4.9 kg/Nm, 203.4 Nm/tonne
Acceleration 0 - 60 mph:6.4 sec
Space:
Kerb Weight:2360
Max. weight:3250
Max load:890
Trunk (boot) space - maximum:2300 l
Trunk (boot) space - minimum:680 l
Permitted trailer load with brakes (12%):3500 kg
Fuel tank capacity:100 l
Permitted trailer load without brakes:750 kg
Size:
Length:5120 mm mm [21mm less]
Width:1934 mm mm [48mm less]
Height:1850 mm mm [Same height.]
Wheelbase:3075 mm mm [Same wheelbase.]
Width including mirrors:2141 mm
Front track:1655 mm
Rear (Back) track:1675 mm
Front overhang:885 mm
Rear overhang:1160 mm
Minimum turning circle (turning diameter):12.4 m [above average]
Powertrain:
Drive wheelAll wheel drive (4x4)
Number of gears7
Transmission typeAutomatic
Gearbox typeG-TRONIC PLUS
Front brakesVentilated discs [Best for performance and cooling.]
Rear brakesVentilated discs [Best for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringElectric Steering
Tires size265/60 R18
Wheel rims size18
Front suspensionDouble wishbone
Rear suspensionIndependent multi-link suspension

Does the Mercedes-Benz GL live up to the hype? Give us your verdict!