DecodedCars2017 Mercedes-Benz GLS-Class
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2017 models.
- Class
- Standard Sport Utility Vehicle 4WD
- Body styles
- Amg Gls 63 4dr SUV AWD, Gls 450 4matic 4dr SUV, Gls 550 4matic 4dr SUV
- Engines
- 3.0L 6-cyl turbo, 4.7L 8-cyl turbo, 5.5L 8-cyl turbo
- Drivetrain
- 4-Wheel Drive
- Fuel
- Premium Gasoline
- MPG (best)
- 19 combined · 17 city / 22 hwy
- Length
- 202 in
- Curb weight
- 5,335–5,754 lb
- NHTSA rating
- Not rated
- Recalls
- 0 campaigns
Pros & cons
What's good
- Few owner complaints0 complaints filed with NHTSA versus about 55 for similar models.
- No recalls so far
Watch out for
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data against 15 similar 2017 models — not a review. How we calculate this →
Overview
The 2017 Mercedes-Benz GLS-Class is a standard SUV offered with 3 engines (3.0L 6-cyl turbo, 4.7L 8-cyl turbo and 5.5L 8-cyl turbo) and 4-wheel drive.
It measures about 202 inches long and 76 inches wide on a 121-inch wheelbase, with a curb weight of roughly 5,754 lb (Amg Gls 63 4dr SUV AWD).
EPA rates its most efficient version at 19 MPG combined (17 city / 22 highway), 3% better than the 2017 standard SUV average of 18.5 MPG, for an estimated $4,350 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
There are no recalls or owner complaints on file with NHTSA for this model year.
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| Amg Gls 63 4dr SUV AWD | 202 in | 76 in | 72.4 in | 121.3 in | 65.4 / 66.1 in | 5,754 lb | 50/50 |
| Gls 450 4matic 4dr SUV | 202 in | 76 in | 72.8 in | 121.3 in | 65.4 / 66.1 in | 5,335 lb | 50/50 |
| Gls 550 4matic 4dr SUV | 202 in | 76 in | 72.8 in | 121.3 in | 65.4 / 66.1 in | 5,578 lb | 50/50 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| GLS450 4matic | 3.0L 6-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 17 / 22 / 19 | +3% | $4,350 | 477 |
| GLS550 4matic | 4.7L 8-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 14 / 18 / 16 | -14% | $5,150 | 562 |
| AMG GLS63 | 5.5L 8-cyl turbo | Automatic 7-spd | 4-Wheel Drive | 13 / 17 / 14 | -24% | $5,850 | 615 |
EPA estimates; "vs. class" is combined MPG against the 2017 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2017 Mercedes-Benz GLS-Class.
Similar 2017 standard SUVs
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2017 Mercedes-Benz GLS-Class (this car) | 19 MPG | Not rated | 0 |
| 2017 BMW X5 | 25 MPG | ★★★★★ | 6 |
| 2017 Cadillac Escalade | 17 MPG | ★★★★★ | 2 |
| 2017 Lexus RX | 30 MPG | Not rated | 3 |
| 2017 Audi Q7 | 22 MPG | Not rated | 7 |
| 2017 Tesla Model X | 295 mi | Not rated | 10 |
| 2017 Land Rover Discovery | 23 MPG | Not rated | 3 |
Recalls (0)
No vehicle recalls on file with NHTSA for the 2017 Mercedes-Benz GLS-Class.
Check your VIN for open recalls at NHTSA ↗Not every 2017 Mercedes-Benz GLS-Class is affected — only a VIN check confirms your car.
Owner-reported problems
No owner complaints for the 2017 Mercedes-Benz GLS-Class in NHTSA's database since 2015.
Used 2017 Mercedes-Benz GLS-Class buyer's checklist
- Run the VIN at nhtsa.gov/recalls. No recalls on file, but check anyway.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2017 Mercedes-Benz GLS-Class. Not a substitute for a professional inspection.
Other GLS-Class years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2027 GLS-Class | 21 | – | Not rated | 0 | 0 |
| 2026 GLS-Class | 21 | 205.9 in | Not rated | 0 | 0 |
| 2025 GLS-Class | 21 | 205.9 in | Not rated | 0 | 0 |
| 2024 GLS-Class | 21 | 205.1 in | Not rated | 0 | 0 |
| 2023 GLS-Class | 20 | 205.1 in | Not rated | 0 | 0 |
| 2022 GLS-Class | 20 | 205.1 in | Not rated | 0 | 0 |
| 2021 GLS-Class | 21 | 205.1 in | Not rated | 0 | 0 |
| 2020 GLS-Class | 21 | 205.1 in | Not rated | 0 | 0 |
| 2019 GLS-Class | 18 | 202 in | Not rated | 0 | 0 |
| 2018 GLS-Class | 19 | 202 in | Not rated | 0 | 0 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Mercedes-Benz. How we calculate this →