2018 Mercedes-Benz GLS550 review
Mercedes-Benz GLS550 highlights
Customer rating
RepairPal reliability rating
(data not available)
Mileage (EPA estimate)
14 city, 19 highway, 16 combined
Pricing for current inventory
(no current inventory)
Shop with your budget in mind
Getting pre-qualified lets you shop with personalized monthly payments, and it doesn't impact your credit score.
All Mercedes-Benz GLS550 years
What is new for the 2018 Mercedes-Benz GLS550?
- GLS550 trims have been upgraded with Heated Mirrors as standard equipment this year.
- Seat Massagers features are now available as options on select trims.
2018 Mercedes-Benz GLS550 trims
Curious how Mercedes-Benz GLS550 trims differ? Use our side-by-side vehicle comparison to see the differences and similaritiesBase:
- 449-hp, 516-lb-ft of torque 4.7L
- Sunroofs
- Rear Air Conditioning
- Rear Defroster
- Cruise Control
- Third Row Seat
- Leather Seats
- Power Seats
- Memory Seats
- View our Mercedes-Benz GLS550 inventory
Shop with your budget in mind
Getting pre-qualified lets you shop with personalized monthly payments, and it doesn't impact your credit score.
Ratings & reliability
Mercedes-Benz GLS550 features and specs
Curious how Mercedes-Benz GLS550 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities
4D Sport Utility 4WD/AWD
Standard Features
- Power Locks
- Power Windows
- Sunroof(s)
- Air Conditioning
- Rear Air Conditioning
- Rear Defroster
- Cruise Control
- ABS Brakes
- Third Row Seat
- Leather Seats
- Power Seat(s)
- Memory Seat(s)
- Front Seat Heaters
- Power Folding Third Row
- Power Mirrors
- Traction Control
- A/C Seat(s)
- Side Airbags
- Overhead Airbags
- Rear View Camera
- Parking Sensors
- Blind Spot Monitor
- Lane Departure Warning
- Smart Key
- Seat Massagers
- Remote Start
- Heated Mirrors
- Running Boards
- Alloy Wheels
- 20 Inch Plus Wheels
- Power Hatch/Deck Lid
- Automatic Transmission
- 4WD/AWD
- Turbo Charged Engine
- AM/FM Stereo
- CD Audio
- Auxiliary Audio Input
- Harman Kardon Sound
- Navigation System
- Satellite Radio Ready
- Bluetooth Technology
- Apple CarPlay
- Android Auto
- Panoramic Sunroof
- Automated Cruise Control
- Rear Seat Heaters
- Seat Massagers
- Heated Steering Wheel
- Rear Sunshade
- Full Roof Rack
- Tow Hitch
- Run Flat Tires
- Bang & Olufsen Audio
- Rear Entertainment System
Drive Wheels
All Wheel Drive (4WD/AWD)
Engine size
4.7L
Horsepower
449
Torque (ft-lbs)
516
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
P295/40HR21
Rear tires
P295/40HR21
Seating capacity
7
Transmission
Automatic
2018 Mercedes-Benz GLS550 FAQ
The 2018 Mercedes-Benz GLS550 has received an average 4.7 out of 5 stars from our customers. If you're in the market for a 2018 Mercedes-Benz GLS550, check out reviews from customers just like you. 2018 Mercedes-Benz GLS550 Reviews.
Here are the pros and cons of the 2018 Mercedes-Benz GLS550: Pros - Ride and Handling - Cabin Noise - Power Cons - Cost to Maintain - Fuel Economy - Dashboard
Here is what's new for the 2018 Mercedes-Benz GLS550:
- Heated Mirrors
- Seat Massagers
The 2018 Mercedes-Benz GLS550 offers the following fuel efficiency options: • Gas: 14 city / 19 highway MPG Actual mileage may vary based on driving conditions, vehicle condition, and driving habits.
Research other vehicles
- 2025 Chevrolet Silverado 3500 review
- 2020 Dodge Journey review
- 2025 Fiat 500e review
- 2023 Fiat 500X review
- 2025 Ford Bronco review
- 2021 Ford Escape Plug In Hybrid review
- 2023 Ford Escape Plug In Hybrid review
- 2017 GMC Savana 3500 review
- 2018 GMC Savana 3500 review
- 2019 GMC Savana 3500 review
- 2024 Honda Accord Hybrid review
- 2012 Honda Civic review
- 2013 Honda Civic review
- 2019 Hyundai Accent review
- Used Mercedes-Benz buying guide
- 2019 Mercedes-Benz GLS550 review
- 2017 Mercedes-Benz GLS550 review
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.
Unless otherwise noted, information related to featured vehicles comes from third-party sources, including manufacturer information. Product and company names may be trademarks or registered trademarks of third-party entities. Use of them does not imply any affiliation with or endorsement by these entities. By clicking on any video links, you will be taken to a third-party site maintained by YouTube, Inc.
We make every effort to provide accurate information, but please verify before purchasing.