Used 2018 Mercedes-Benz GLS for Sale near Phoenix, AZ
114 results
CarGurus Analysis:
2018 Mercedes-Benz GLS
With 116 currently listed for sale near Phoenix, AZ and an average price of $25,786.00, 6.0% of 2018 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Mercedes-Benz GLS 3.81 / 5 stars.
66.4% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS stands out as the roomiest vehicle in the Mercedes-Benz lineup, featuring three rows of seating for six or seven people and up to 94 cubic feet of cargo space.
CarGurus Analysis: 2018 Mercedes-Benz GLS
Summary
With 116 currently listed for sale near Phoenix, AZ and an average price of $25,786.00, 6.0% of 2018 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Mercedes-Benz GLS 3.81 / 5 stars.
66.4% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS stands out as the roomiest vehicle in the Mercedes-Benz lineup, featuring three rows of seating for six or seven people and up to 94 cubic feet of cargo space.
Why it stands out
The 2018 Mercedes-Benz GLS excels as a luxury SUV designed for family comfort, seamlessly blending the upscale attributes of the S-Class with the practicality needed for everyday use. Its spacious interior accommodates three rows of passengers, making it ideal for larger families or group travel. Noteworthy features include luxurious materials and a tech-savvy environment that enhances the driving experience with modern electronic amenities. While some users have suggested that interior space could be more generous, the strong performance, especially in terms of power delivery, solidifies the GLS’s reputation as a premium SUV in a crowded market. Compared to its competitors like the Audi Q7 and BMW X7, the GLS offers a distinctive mix of elegance and functionality, making it a compelling choice for those seeking both luxury and utility in their vehicle.
Other model years to consider
- Average price: $71,699.00
- Good/great deal percentage: 23.9%
- User rating: 5 / 5
- Total listings: 138
- Average price: $46,208.00
- Good/great deal percentage: 16.0%
- User rating: 4.93 / 5
- Total listings: 106
- Average price: $52,631.00
- Good/great deal percentage: 22.1%
- User rating: 5 / 5
- Total listings: 122
This analysis is based on CarGurus' proprietary market data from March 31, 2026, CarGurus experts' opinions, and generative AI.
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Anonymous
Reviewed a 2018 Mercedes-Benz GLS on Jan 9, 2021
Unbelievable vehicle. Has every electronic feature you can imagine, plus a few you cant. Driving it is like floating on a magic carpet. Way more power than I need. Most comfortable car Ive ever owned. All in all I couldnt be happier.
Anonymous
Reviewed a 2018 Mercedes-Benz GLS on Dec 28, 2021
The only improvements would be to add a phone charger somewhere other than just in the storeage console.. I would also prefer a roach screen for the navigation system. Other than those additions, I love it!
Anonymous
Reviewed a 2018 Mercedes-Benz GLS on Feb 17, 2021
Great Car. Plenty of power. Good gas mileage Room for dog crate in back of seats
Anonymous
Reviewed a 2018 Mercedes-Benz GLS on Feb 10, 2021
Thought it would have been more spacious, but the volume was added behind the driver’s seat. The front of the vehicle is the size of a GLE Class, 5 passenger vehicle.
2018 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $69,550 |
| 550 4MATIC | $94,950 |
| AMG GLS 63 4MATIC | $125,300 |
2018 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 Mercedes-Benz GLS prices has changed over time.
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