Used 2021 Mercedes-Benz GLS-Class Consumer Reviews
Used GLS-Class for sale
We have a limited number of reviews for the 2021 GLS-Class, so we've included reviews for other years of the GLS-Class since its last redesign.
GLS450 Awesome Technology
Rick, 09/19/2020
2020 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
7 of 8 people found this review helpful
Overall vehicle has improved significantly since my 2017 GLS450. Great interactive screens in vehicle. Voice command controls work well. Overall ride & performance has improved greatly.
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The Very Best SUV ride available
Dave Sanborn, 09/26/2021
2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
9 of 11 people found this review helpful
We purchased a 2020 GLS450 when they first came out and drove it for almost two years. The tech took a little while to get used to and the stereo was a little disappointing given it was a Burmester. The ride was outstanding with really comfortable seats. Zero issues with the vehicle other than a the proximity for the key didn't always work and the nav would route you poorly. The GLS has one of the best 3rd row seats available for space without being an enormous vehicle. We thought we wanted an upgrade and my wife wanted something where she was up higher with a better stereo. We traded ours in on a Range Rover Supercharged. What a mistake! Yes - we were up higher and the Meridian stereo is excellent. That’s about it. The seats were uncomfortable and the ride was poor in comparison. On top of that, nothing worked reliably! Like nothing - the screens would lock up continuously and one time the car wouldn’t start at all. The service at Land Rover was horrible. They couldn’t get us a loaner for 60 days! Needless to say, the Rover lasted 18 days and we decided to go back to the GLS and purchased a 2021 that was optioned significantly better than our first and it really makes a difference. A couple of highly recommended upgrades to get. 1. You must get the Acoustic Comfort Package. Don’t buy this vehicle without it. Absolutely worth the cost. It enhances the stereo and the interior is like a vault. Very little outside sound. 2. Get the all leather multi contour seats with massage - they are fantastic 3. Get the Driver Assistant Plus Package - it’s incredible and works very well. It has to be one of the safest adds available. It will recognize if you fall asleep or pass out, pull over safely, turn the hazards on and call 911! 4. HUD - one of the best Heads Up Displays available There are significant improvements made in 2021. Everything works better. The nav is better, the cameras are out of this world and all of the tech seems to work better. We couldn’t be happier to be back in a GLS and Mercedes has really outdone themselves with this SUV. It’s hard to explain but the ‘21 just works better. First year models are always a little quirky. A word of warning. Our dealer said, like everywhere, the supply chain has been disrupted and they are only getting in low optioned GLS’s. They even had one that had zero options on the lot. The options on ours are going to be very hard to find but don’t settle and hold out for the right one. We bought it the day it arrived at the dealership and there were 5 other people in line behind us to look at it.
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2021 Mercedes-Benz GLS-Class for sale near you
Showing 3 of 27 listings
- GLS 450 4MATIC 4dr SUVMSRP: $41,60445 mi away
- GLS 580 4MATIC 4dr SUVMSRP: $51,88840 mi away
- AMG GLS 63 4dr SUVMSRP: N/A45 mi away
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Love it
G and K, 12/16/2020
2020 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
6 of 7 people found this review helpful
Shopped many top brands before choosing MB. Was looking for a car we could drive 10-12 years that had a comfortable 3rd seat. This car covered all the bases: seat comfort , front and back, ease of access to 3rd row, lots of pep, awd, cabin luxury , quiet and handles like a dream. Multiple tech features literally at your finger tip are the icing on the cake.
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Unreliable.
Joe Kozak, 07/23/2022
2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
12 of 16 people found this review helpful
I have lost track of how many times this has been in for warranty work.
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Former MB customer
JM, 09/19/2022
2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric mild hybrid 9A)
6 of 8 people found this review helpful
Drives out well. Transmission is undecided 30%, of the time. Twice during highway driving releasing the accelerator the auto stop seem to engage. Gages dropped out, engine went limp. It came back to life with accelerator engaged. Rather alarming. Went to trade it MB dealer in Denver wanted another 10k for market adjustment. Got a new SVR, at msrp. MB lost another loyal customer.
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