Used 2018 Mercedes-Benz GLS for Sale near Worcester, MA
207 results
CarGurus Analysis:
2018 Mercedes-Benz GLS
With 930 currently listed for sale and an average price of $22,638.00, 32.8% 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.
66.1% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS is renowned for its spacious interior, luxurious features, and powerful performance, making it an attractive option for families and those seeking a premium SUV experience.
CarGurus Analysis: 2018 Mercedes-Benz GLS

Summary
With 930 currently listed for sale and an average price of $22,638.00, 32.8% 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.
66.1% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS is renowned for its spacious interior, luxurious features, and powerful performance, making it an attractive option for families and those seeking a premium SUV experience.
Why it stands out
The 2018 Mercedes-Benz GLS distinguishes itself as the most spacious SUV in the Mercedes lineup, adeptly blending luxury and practicality. With three rows of seating accommodating six or seven passengers, it offers up to 94 cubic feet of cargo space—ideal for family trips and everyday errands. While it may not boast the towering height of the G-Class or the extended luxury of the S-Class, the GLS successfully marries the two, achieving a comfortable ride with a surprising degree of off-road capability. Owners often praise it for its blend of performance and innovative electronic features, although some have noted that interior space can feel a bit cramped given the overall size of the vehicle. Importantly, its high-quality materials and excellent build convey the brand's commitment to luxury, making it a desirable choice among competing models.
Other model years to consider
- Average price: $78,503.00
- Good/great deal percentage: 34.1%
- User rating: 5 / 5
- Total listings: 1,362
- Average price: $51,456.00
- Good/great deal percentage: 34.9%
- User rating: 4.93 / 5
- Total listings: 894
- Average price: $50,394.00
- Good/great deal percentage: 35.8%
- User rating: 5 / 5
- Total listings: 1,047
This analysis is based on CarGurus' proprietary market data from April 6, 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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