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2020 Mercedes-Benz GLS450 review

Research, photos, specs, and expertise

Mercedes-Benz GLS450 highlights

Customer rating

RepairPal reliability rating

Mileage (EPA estimate)

19 city, 23 highway, 21 combined

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All Mercedes-Benz GLS450 years

What is new for the 2020 Mercedes-Benz GLS450?

  • GLS450 trims have been upgraded with Automated Parking, Parking Sensors, Blind Spot Monitor, Heated Mirrors, Android Auto, Satellite Radio Ready, Burmester Audio, and Apple CarPlay as standard equipment this year.
  • Rear A/C Seat(s), Third Row Seat, Quad Seats, Head Up Display, and Front Seat Heaters features are now available as options on select trims.

2020 Mercedes-Benz GLS450 trims

Curious how Mercedes-Benz GLS450 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

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Ratings & reliability

Customer ratings

5 out of 5

1 customer reviews

RepairPal reliability rating

3
1
2
Above Average

RepairPal gave the Mercedes-Benz GLS450 an overall reliability rating of 3.5 out of 5 stars, which RepairPal describes as Above Average. This rating ranks Mercedes-Benz GLS450 5th out of 20 among Luxury Fullsize SUVs.

View RepairPal's full rating of the Mercedes-Benz GLS450

Mercedes-Benz GLS450 features and specs

Curious how Mercedes-Benz GLS450 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

4D Sport Utility 4WD/AWD

Standard Features

  • Sunroof(s)
  • Memory Seat(s)
  • Power Folding Third Row
  • Front Seat Heaters
  • Power Seat(s)
  • Leatherette Seats
  • Smart Key
  • Automated Parking
  • Parking Sensors
  • Rear View Camera
  • Power Windows
  • Power Locks
  • Power Mirrors
  • Cruise Control
  • Rear Defroster
  • Blind Spot Monitor
  • Air Conditioning
  • Side Airbags
  • Overhead Airbags
  • Traction Control
  • ABS Brakes
  • Adjustable Suspension
  • Third Row Seat
  • Rear Air Conditioning
  • Remote Start
  • Heated Mirrors
  • Alloy Wheels
  • Power Hatch/Deck Lid
  • 4WD/AWD
  • Automatic Transmission
  • Turbo Charged Engine
  • Android Auto
  • Satellite Radio Ready
  • Burmester Audio
  • Auxiliary Audio Input
  • AM/FM Stereo
  • Navigation System
  • Bluetooth Technology
  • Apple CarPlay

Optional Features

  • Rear Sunshade
  • Panoramic Sunroof
  • Rear Seat Heaters
  • Rear A/C Seat(s)
  • Third Row Seat
  • Quad Seats
  • A/C Seat(s)
  • Seat Massagers
  • Leather Seats
  • Lane Departure Warning
  • Head Up Display
  • Automated Cruise Control
  • Heated Steering Wheel
  • Rear Air Conditioning
  • Front Seat Heaters
  • Tow Hitch
  • 20 Inch Plus Wheels
  • Running Boards
  • Full Roof Rack
  • Burmester Audio

Drive Wheels

All Wheel Drive (4WD/AWD)

Engine size

3.0L

Horsepower

362

Torque (ft-lbs)

369

Engine type

Turbo Gas

Fuel capacity

23.8

Wheelbase

123.4"

Overall length

205"

Width

77"

Height

71.8"

Leg room

F 40.3"/M 41.9"/R 34.6"

Head room

F 39.4"/M 40.2"/R 38.9"

Front tires

P275/55HR19

Rear tires

P275/55HR19

Seating capacity

7

Transmission

Automatic

2020 Mercedes-Benz GLS450 FAQ

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* Price excludes taxes, title, registration, and fees. Applicable transfer fees are due in advance of vehicle delivery and are separate from sales transactions.

We hope you found this information helpful. This content is intended to inform and is not meant to indicate that a particular vehicle is currently available or recommended for you.​

Statements of fuel economy or EV range are based on EPA and other third-party estimates for vehicles when new. Fuel economy and EV range will degrade with time and vary based on age, driving conditions, vehicle history, and other conditions. See fueleconomy.gov for more info.

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