Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
Mercedes-Benz GLS 450 SUVs
for sale
near
Boxborough, MA
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Reviews
Nice dealership, pleasant experience
My wife needs to retire her car. We are looking at three brands and this was our first stop. We spoke to Brockton and he made it a great experience. If she decides on the Mercedes we will be back.
I’ve had many Mercedes-Benz models over the years,
I’ve had many Mercedes-Benz models over the years, including AMG’s and the GLS 450 a wheel drive with 23 inch wheels makes this car track like a race car. Out of all the Mercedes-Benz models this is the best one you’ve ever had. The second row seats reclining just like the front row seats privacy shades and the third row comes in handy when needed plenty of cargo space for all those trips to the airport to pick up family and friends. It gets great gas mileage then other SUVs and it doesn’t look like a box like it’s competition. I had the dealer put the Mercedes-Benz standup medallion on the hood even though it has a huge Mercedes-Benz insignia on the front. I just like to see the stand up Star medallion from the driver seat guide me down the road..
Mercedes-Benz Certified
2024 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Reviews
I brought my car in for an engine light issue on Tuesday
I brought my car in for an engine light issue on Tuesday morning. To my surprise it was repaired and ready for pickup that afternoon
Great SUV
My 2 honest cents. Just bought the 2024 GLS 450 and it has a huge presence on road and it looks stunning! I went with the AMG exterior package and it looks way better than the base model. Ride quality is good, very smooth ride on freeways but you do feel small bumps on occasional city roads. The engine is good but I wish it had a bit more power, feels little laggy at low speeds but when you floor it it moves fast and steering is very responsive. On the other hand, cabin very silent tho and you barely get to hear road noise (without acoustic package). The Mileage is incredible on this, wasn't expecting to write about it but the GLS gives better mileage than my GLC. Interiors are amazing and is something no other manufacturer in this segment can match (especially at night with ambient lights), seats are super comfy and the infotainment screens are also crisp. Overall, love this SUV and i'm gonna keep it for a while.
Mercedes-Benz Certified
2024 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Reviews
Gold star treatment
Went to 3 other dealers before being reccomend to matt Harris and knew instantly it was our last stop. We has been treated like xxxx at the other dealers. 1 lied to us and another told us he would not replace bald tires on a 2 year old luxury vehicle. The second we met Matt we knew we were In great hands. My fiance got the Mercedes she wanted at a fair price and the vehicle recieved everything it needed in the shop before we looked at it. The finance guy treated us like human being and never once felt like I was being had. Oh I forgot to mention that I sold cars for the last 17 years so I recognized great people right away. We will always be loyal to Matt and appreciate everything he did for us
Mercedes-Benz Certified
2023 Mercedes-Benz GLS 450
Vehicle information
Reviews
Amazing dealership inside and out.
Mercedes-Benz was extremely helpful when it came to helping me with the purchase of my new C300. The facility was immaculate and team very accommodating.
Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features
Reviews
My wife and I are more than happy with His work, he made
My wife and I are more than happy with His work, he made sure we left that place with a smile on our faces. He was able to work with us, very patient, very kind, very professional!
Great Vehicle
I absolutely love the feel and performance of this suv. The electronics are state of the art. Excellent road performance in rain, snow or wind. My only complaint is the running board- it needs to be at least 1 inch wider. Actually dangerous in snow and ice.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Reviews
Longtime Customer
I have been servicing my cars with Smith for over 35 years. Always attentive to my needs. Simply the best for Sales, Parts and Service.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Reviews
Friendly and knowledgeable service
Greg Longo in service went above and beyond for me yesterday. Highly recommend Smith's friendly and knowledgeable staff. I will use Smith Motors for any warrantee work in the future.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Reviews
We just bought a C-300 2024 from Smith Moters.
We just bought a C-300 2024 from Smith Moters. Chris Walden was a super salesperson. Every thing he said was true. The car has everything we wanted+. the transaction was seamless. The financial end of the transaction was efficient. We would highly recommend Chris and Smith Moters.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Reviews
A positive car buying experience.
When we went to the dealership we knew what we wanted and what we didn't want and Rocco was patient, answered all of questions and let us make our own decision.
Used
2019 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Went in to look at a fee vehicles i saw online.
Went in to look at a fee vehicles i saw online. Worked with Brendan , who was fantastic! I normally hate the car buiying experience , but Bredan made it simple and easy. No tricks or upselling, just a good overall salesman that was truely interested in making sure the experience was great! The finance team was also great, they were able to find me better financing than i walked in with. Again, no pressure or pushy tactics. On and i have to mention that i got TWO KEYS to the car!! (if you know you know)! Plan to go back again in about 6 months to purchase a car for my wife!
I bought this vehicle is a retirement car.
I bought this vehicle is a retirement car. He moves great is responsive and very smooth. I wanted a retirement car for my retirement. I am 60 years old and I want that something that represent my current status with luxury interiors, beautiful blue color, and 20 inch wheels it is awesome looking. I can reach 70 in the blink of an eye any moves like it's going at 30 or 40 miles an hour. He has an awesome radio system. although it is not all digital, the radios are for listening. I have an excellent sound, System. Great interiors, great materials, great lighting if you're planning to buy a GLS the 450 is definitely one of your best choices.
Used
2024 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
I had an excellent experience.
I had an excellent experience. My salesman was knowledgeable and helpful. I was there for a total of three hours and drove away with a Porsche Macan!
Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features
Reviews
For any service ask for Morgan!
For any service ask for Morgan! I had my first recall on my car and she helped me with everything! My car was also ready within 2 hours! Morgan is amazing!
Love it so far
Special. A delight to drive. Love the way it handles. Extremely responsive, both acceleration and steering. Cabin is very quiet and at night almost too relaxing.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.
Used
2024 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2018 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2020 Mercedes-Benz GLS 450
Vehicle information
Features
Used
2022 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2022 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2024 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2025 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Mercedes-Benz Certified
2022 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Used
2025 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
-
Prev - 1
- 2
-
Next
Mercedes-Benz GLS 450 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 Mercedes-Benz GLS 450 | $100,108 |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Compare the Mercedes-Benz GLS 450
Mercedes-Benz GLS 450 SUVs by city
-
Mercedes-Benz GLS 450 SUVs in Boxborough, MA
20 Great Deals out of 36 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Littleton, MA
21 Great Deals out of 38 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Harvard, MA
12 Great Deals out of 23 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Littleton Common, MA
21 Great Deals out of 38 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Stow, MA
13 Great Deals out of 24 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Acton, MA
20 Great Deals out of 36 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Maynard, MA
20 Great Deals out of 36 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Bolton, MA
12 Great Deals out of 21 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Ayer, MA
18 Great Deals out of 31 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in West Concord, MA
20 Great Deals out of 36 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Hudson, MA
12 Great Deals out of 23 listings starting at $15,000
-
Mercedes-Benz GLS 450 SUVs in Westford, MA
21 Great Deals out of 37 listings starting at $15,000
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
