IIHS Crash Test
MPG (up to)
13 -19 City / 17 -22 HWY
Horsepower
255 -577
Seats
7
Front passenger 3/4 w/ wheels turned.

Positive Owner Reviews

accountCircle Jenny L
Great overall family car!
It is such a fun car to drive and has so much room for my kids and gear. It is fast, safe, and has all the technology you could want. The technology is easy to use. All the safety features put my mind at ease, especially with the family. I love the automated seats in the back, and the leg room in the third row is perfect for adults.
accountCircle Karen L
It is technologically advanced. Besides lane assist it can parallel park by itself!
I love my red Mercedes SUV! It's roomy to fit all the things I need to haul around. I love my sunroof and the safety features are awesome. Lane assist is my favorite.
accountCircle Bill C
The best of the Benz. The finest vehicle of the Mercedes class.
It rides like a dream, handles excellent, is a little slippery in the snow but I usually leave it garaged in storms. I bought the vehicle with options, I got a moonroof that is the length of the roof and is awesome in the summer. Also it has all wheel drive which handles excellent.
accountCircle Leslie H
Gls review- ac issue alert.
I love my gls 450. It drives great and has had no real issues. I did receive a recall about the ac filter having a mildew scent on some. My car does have this so that would be my biggest complaint. However, now that there is a fix, I really have no complaints and love my car!
accountCircle Lauren J
Review of Mercedes gls 450.
The car has a very nice streamlined design and drives very smoothly. I used to have the Mercedes gle but upgraded to the gls for more space. It is nice because you can have three rows of seats and yet it does not drive like a large SUV. It also has a lot of very nice quality details in the exterior and a great navigation system.
accountCircle Stephanie O
It is a very comfortable riding car with a luxurious interior.
Love the large size of my SUV. Love having the automatic 3rd row seats. Love having internet in the car for my kids :)
accountCircle Bruce G
The most powerful and luxurious SUV.
Everything is amazing with my Mercedes. There is nothing wrong with it and I love Mercedes in general. Mercedes is a great company and anyone who can afford one should but one. My gls63 AMG is the most luxurious and powerful SUV. It is a brabus edition.
accountCircle Leslie P
Gls 450: great family car!
The gls 450 is a great fit for our family! The cargo area is very spacious and the 3rd row of seats really comes in handy. Super comfortable and is a smooth ride. There are a few blind spots, but the blind spot sensor is great. Another great feature is the driving assistance, which will alert you to different hazards. There are also different preset driving modes, I typically use the comfort mode. The sport mode is a lot of fun! This is my 3rd Mercedes and I have been pleased with all of them. Very reliable cars that will last a long time if properly maintained!

Mercedes-Benz GLS-Class Models

Models also known as Trim Levels, are used to identify a vehicle's level of equipment or special features.

car
GLS 350d
255 HP 7 Seats
car
GLS 450
362 HP 19 MPG 7 Seats
car
GLS 550
449 HP 16 MPG 7 Seats
car
AMG GLS 63
577 HP 14 MPG 7 Seats
Photos may not match model

2017 Mercedes-Benz GLS-Class Owner Reviews

4.94
32 Reviews
close Write Review
5 stars 94%
4 stars 6%
3 stars 0%
2 stars 0%
1 star 0%
accountCircle Patricia D on February 18, 2021
Reliable & dependable luxury with comfort and looks
The GLS450 is a fantastic car for families. It doesn't feel like a truck, easy to operate 3rd row seats, all the bells & whistles plus excellent service
accountCircle Maegan H on February 15, 2021
The awe-inspiring 2017 Mercedes gls450.
My 2017 gls450 is very functional due to its 3rd row seating option. Many vehicles that offer this option are cramped and do not leave much room in the back. This vehicle, however, does leave plenty of room in the third row. The gls450 offers a smooth and easy ride while also giving me my luxury and gorgeous interior. I picked the 450 version over the 550 simply because I felt that I did not need that power that comes with the gls550. The engine in my 450 is powerful enough for what I need and giving that I drive to the city a lot, a powerful engine was not necessary for me. I have not had any problems with my vehicle since its purchase as it continues to be the most reliable car I have ever bought compared to my ford and GMC. The features of my vehicle are amazing, from apple CarPlay to the Wi-Fi availability. However, my favorite feature is the climate zone where each person in the vehicle can have their own temperatures set to their liking. One factor that surprised me after purchasing the SUV was is capable towing abilities. From the warning of lights not working on the trailers to the lane assistant feature while towing which helps due to the weight of what is being towed. This was a nice feature that I didn't even know that I needed. Overall, Mercedes thought of problems and needs that owners might want before even launching the car of the manufacturing line.

Ranks #2 Luxury Full Size SUV by Owners

The 2017 Mercedes-Benz GLS-Class has an average owner rating of 4.94 out of 5 which ranks it #2 of 10 other Luxury Full Size SUVs.

1
car
5
2
car
4.94
3
car
4.8

Ranks #3 Luxury Full Size SUV by Fuel Economy

The 2017 Mercedes-Benz GLS-Class has a combined MPG of 22 which ranks it #3 of 10 other Luxury Full Size SUVs.

1
car
31 MPG
2
car
28 MPG
3
car
22 MPG

Is The 2017 Mercedes-Benz GLS-Class A Good Car?

The Mercedes gls class is an excellent vehicle. Luxurious and roomy. Very easy to drive. Worth the price point.
Liz O.

How Reliable Is The 2017 Mercedes-Benz GLS-Class?

I haven't had any issues with our 2017 Mercedes gls. This is another reason why I love this SUV. Highly recommend it.
Liz O.

Is The 2017 Mercedes-Benz GLS-Class A Good Value?

It is quite pricey. But I feel totally worth the money. This is our 2nd gls. And after this lease is up we will definitely get another one.
Liz O.

Frequently Asked Questions

What's the 2017 mercedes GLS 450 oil capacity?

Answer: The 2017 Mercedes Benz GLS450 came factory standard with a 3.0L V6 engine under the hood and this was going to be the same for all models since there was other engine upgrade made available. This engine is...

What's the 2017 mercedes GLS 450 battery location?

Answer: The 2017 Mercedes GLS450 has a battery in the interior of the vehicle. It is somewhat easy to find, although hidden. The first thing You need to do when locating the battery in a Mercedes is to open the door on...

What's the 2017 mercedes gls 450 oil type?

Answer: The 2017 Mercedes GLS450 uses SAE 5w-40 viscosity, fully synthetic motor oil in its engine. The vehicle has an oil capacity of 6.2 US quarts. You can find this oil at any maSSRetail location. You can also find...

Answers are provided by third parties. We do not guarantee accuracy of responses

Safety & Reliability

NHTSA Logo
NHTSA Crash Test
(Not Rated)
*National Highway Traffic Safety Administration
IIHS Logo
IIHS Crash Test

Moderate Overlap Front

Not Rated

Side

Not Rated

Roof Strength

Not Rated

Driver-side Overlap Front

Not Rated
*Insurance Institute for Highway Safety