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2017 Mercedes-Benz GLS450 review

Research, photos, specs, and expertise

Mercedes-Benz GLS450 highlights

Customer rating

RepairPal reliability rating

Mileage (EPA estimate)

19 city, 22 highway, 19 combined

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Ratings & reliability

Customer ratings

4.2 out of 5

5 customer reviews
The 2017 Mercedes-Benz GLS450 offers strong fuel efficiency, impressive power, and excellent handling. Its quiet cabin adds to the luxury experience. However, concerns arose about seat comfort, limited cargo space, and older technology. Overall, it’s a reliable and balanced option for premium SUV buyers.

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.

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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

  • ABS Brakes
  • Sunroof(s)
  • Overhead Airbags
  • Power Folding Third Row
  • Traction Control
  • Rear View Camera
  • Power Seat(s)
  • Power Mirrors
  • Air Conditioning
  • Memory Seat(s)
  • Power Windows
  • Cruise Control
  • Adjustable Suspension
  • Leatherette Seats
  • Power Locks
  • Side Airbags
  • Third Row Seat
  • Front Seat Heaters
  • Rear Defroster
  • Rear Air Conditioning
  • Remote Start
  • Heated Mirrors
  • Power Hatch/Deck Lid
  • Alloy Wheels
  • Turbo Charged Engine
  • 4WD/AWD
  • Automatic Transmission
  • Auxiliary Audio Input
  • AM/FM Stereo
  • Bluetooth Technology
  • CD Audio

Optional Features

  • Rear Seat Heaters
  • Parking Sensors
  • Seat Massagers
  • Rear Sunshade
  • A/C Seat(s)
  • Lane Departure Warning
  • Rear Air Conditioning
  • Panoramic Sunroof
  • Automated Parking
  • Heated Steering Wheel
  • Blind Spot Monitor
  • Smart Key
  • Automated Cruise Control
  • Leather Seats
  • Front Seat Heaters
  • Full Roof Rack
  • 20 Inch Plus Wheels
  • Tow Hitch
  • Run Flat Tires
  • Running Boards
  • Android Auto
  • Apple CarPlay
  • Bang & Olufsen Audio
  • Harman Kardon Sound
  • Satellite Radio Ready
  • Rear Entertainment System
  • CD Audio
  • Navigation System

Drive Wheels

All Wheel Drive (4WD/AWD)

Engine size

3.0L

Horsepower

362

Torque (ft-lbs)

369

Engine type

Turbo Gas

Fuel capacity

26.4

Wheelbase

121.1"

Overall length

202"

Width

76.1"

Height

72.8"

Leg room

F 40.3"/M 38.5"/R 35"

Head room

F 41.2"/M 40"/R 38.9"

Front tires

P275/55HR19

Rear tires

P275/55HR19

Seating capacity

7

Transmission

Automatic

2017 Mercedes-Benz GLS450 FAQ

The 2017 Mercedes-Benz GLS450 has received an average 4.2 out of 5 stars from our customers. If you're in the market for a 2017 Mercedes-Benz GLS450, check out reviews from customers just like you. 2017 Mercedes-Benz GLS450 Reviews.
The Mercedes-Benz GLS450 received a rating of 3.5 out of 5 stars from RepairPal, which RepairPal describes as Above Average. This rating ranks the Mercedes-Benz GLS450 as 5 out of 20 among Luxury Fullsize SUV
Here are the pros and cons of the 2017 Mercedes-Benz GLS450: Pros - Fuel Economy - Ride and Handling - Power Cons - Technology and Entertainment - Seat Comfort - Cargo Space
The 2017 Mercedes-Benz GLS450 offers the following fuel efficiency options: • Gas: 19 city / 22 highway MPG Actual mileage may vary based on driving conditions, vehicle condition, and driving habits.

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* Price excludes government fees and taxes, any finance charges, $85 CarMax document processing charge (not required by law), any electronic filing charge, and any emission testing charge. Price assumes that final purchase will be made in the State of CA, unless vehicle is non-transferable. Vehicle subject to prior sale. Applicable transfer fees are due in advance of vehicle delivery and are separate from sales transactions. Limited warranty is 30 days. See store for details. We make every effort to provide accurate information, but please verify before purchasing.

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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We make every effort to provide accurate information, but please verify before purchasing.