Used 2018 Mercedes-Benz GLS for Sale near Michigan
187 results
CarGurus Analysis:
2018 Mercedes-Benz GLS
With 962 currently listed for sale and an average price of $22,566.00, 33.5% 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 4.8 / 5 stars.
63.9% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS is celebrated for its roomy interior, luxurious features, and robust performance, making it an excellent choice for families looking for a premium SUV experience.
CarGurus Analysis: 2018 Mercedes-Benz GLS

Summary
With 962 currently listed for sale and an average price of $22,566.00, 33.5% 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 4.8 / 5 stars.
63.9% of 2018 GLS models on CarGurus are accident free.
The 2018 Mercedes-Benz GLS is celebrated for its roomy interior, luxurious features, and robust performance, making it an excellent choice for families looking for a premium SUV experience.
Why it stands out
The 2018 Mercedes-Benz GLS is noteworthy for its combination of spaciousness and luxury within the midsize SUV segment. It comfortably accommodates six or seven passengers with three rows of seating and provides up to 94 cubic feet of cargo space, ideal for family outings or road trips. Owners appreciate the GLS's exceptional comfort and high-quality interior materials, alongside a suite of cutting-edge technological features that improve the driving experience. Despite being a full-size SUV, it offers a level of performance that rivals some luxury sedans thanks to its powerful engine options. However, potential buyers should consider the feedback regarding the interior space, as some drivers find it slightly less accommodating than expected. Overall, the GLS consistently impresses with its blend of luxury, comfort, and practicality, making it a compelling choice in the competitive luxury SUV market.
Other model years to consider
- Average price: $76,006.00
- Good/great deal percentage: 33.7%
- User rating: 5 / 5
- Total listings: 1,440
- Average price: $35,009.00
- Good/great deal percentage: 35.8%
- User rating: 5 / 5
- Total listings: 790
- Average price: $82,618.00
- Good/great deal percentage: 34.0%
- Accident-free percentage: 96.7%
- Total listings: 1,434
This analysis is based on CarGurus' proprietary market data from June 8, 2026, CarGurus experts' opinions, and generative AI.
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Mercedes-Benz GLS Buying Guide: Cost, Reliability, and the Best Years to Buy
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4.8 Overall rating
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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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