Used Mercedes-Benz GLS 450 for sale near Brookfield, IL

We recently purchased a 2025 C300 4Matic from Romeoville MB, and the experience was outstanding from start to finish. Jayda and the entire staff were incredibly courteous, knowledgeable, and helpful throughout the process. They made everything smooth and stress-free. Highly recommend Romeoville MB for anyone looking for a Mercedes-Benz vehicle and top-tier customer service!

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.

From the moments I got in the dealership until I left I was treated very nice and very welcomed. I looked at Lexus RX and end up buying it because I felt comfortable and car is clean with good competitive price. Very recommend

This car met all my needs and more. Love the interior and the way its moves. So comfortable and reliable! Very pleased with this car!

Great experience, I knew what I was looking for before I had even arrived, Patrick Johnson was excellent. Not only did he show me exactly what I was looking for he even gave me the tour of the facility and of my brand new vehicle. He and the team worked with me to get a fair finance offer, I was in and out onto the open road in record time, excellent service and extremely informative. Highly recommend this dealership, staff was friendly and so helpful I can't praise it enough. I will be recommending Patrick to all my coworkers shopping for a brand new vehicle. Thank you again for bringing into the Subaru family.

Exceptional vehicle in the SUV class. We drove the BMW X7, Audi Q7, Volvo XC90 and this GLS 450 just kept blowing them out of the water. The ride is amazing and we feel the comfort level and size is the best

I just got my Tesla at Affinity. Milton was amazing. He knew exactly what I needed. I strongly suggest that you go see him before EV credit is over.

We are in our first five months and I seriously believe all the safety options have kept me out of at least two accidents. The car on the highway practically drives itself while giving me a message. Audio systems are excellent. The 450 GLS makes driving a bit of a joy.

The salesperson was very on with the auto I looked at but we couldn’t come together about the price

I have this car for almost 6 years I have no major problem at all. We always use this for long drive and short heavy cargo. Excellent SUV.

Had my Mercedes Sprinter RV serviced here. I have used them in the past and it is always a great experience. Mark in service provides great customer service keeping me informed on what is going on during my appointment. They always go above and beyond. Their quotes are on point and I never feel like they are trying to take advantage of me. One of the best dealerships I have ever worked with.

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..

I have been taking my car for maintenance and repair services for years now. Great customer service, professional technicians. Auto Park Imports have great selection of luxury cars. Considering getting my new car from them. Thanks you for your great service!

I purchased the vehicle off of a lease in March with 60K miles. Overall I am pleased with the purchase. For the size the SUV is very nimble. The surround camera is a must. On a 350 mile round trip my 5'6" daughter-in-law had no issues sitting in the third row. I put the car seat for my grandson in the 2nd row drivers side because lifting the 2nd row back after 3rd row access is cumbersome and heavy on the drivers since you have to lift the middle seat as well. MB you have to make the 2nd row power back to upright position. Adaptive cruise control is outstanding but keep in mind you have to get the Driver Assistance package to get it. Harmon/Kardon surround sound is very nice. My big complaint is sometimes at speeds above 65 MPH there is front vibration. Does not happen all the time, sometimes I can cruise at 80 MPH and feels like I am sitting in my living room. I think it may have something to do with the Pirellis, I plan to switch very soon to Michelins. A very classy, roomy and comfortable SUV

I have never bought a car online before let alone bought a car without even seeing it or driving it. I saw a Bentley Flying Spur for sale at Chicago Auto Gallery. I called and spoke to a salesperson named Steve. From the first hello on the phone until we closed the deal and the car was shipped to me Steve was fantastic. He did everything possible to ensure that I was satisfied with the car and the deal. Now here's the extra part that I was even shocked at myself. Once I got the car, I drove it and after 5 miles some of the lights came on such as check engine, ride height, traction control and ABS. I was initially immensely pissed. I called Steve and said you might want to get ahold of that driver who delivered this car and tell him to take it back. Steve suggested I take it to a certified mechanic near me and have it looked at to see what was the problem. Apparently when one light goes off, it triggers more lights to activate. I had it looked at and to fix the car right it was going to be over $3000. Steve took care of it and the dealership paid the whole bill. In my mind that was the most solid thing to do and he did it. He could have argued and tried to avoid it or said no, you bought it, you fix it. They did not do that to me. I'm in Pittsburgh and they are in Chicago. I know I had rights and could have just sent it back but I wanted that car and they fixed it for me. I appreciate everything they (Steve) did for me and I would definitely purchase another vehicle from them. Thank you again Steve and Chicago Auto Gallery.

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.

Great team with excellent customer service. I have previously owned BMW/Mercedes, and most recently Audi from another local dealer. The Audi Team at Orland Park got me a great deal (beating several other competitors in the area) in the exact vehicle I wanted, and made the process of trading my old vehicles seamless. While the process of buying or leasing a new car can often be confusing and painful, Peter Mangano's team provided straightforward, excellent service. It has been my most pleasant and efficient car experience to date, and they went above and beyond to get me what I needed. I am a loyal customer from now on!

Very happy with my purchase from RBM Alpharetta. The car has a very comfortable interior with all the features available. Handles well in town and on long drives. Good acceleration for such a big vehicle. Love the contemporary exterior.

We drove from out of state to look at a vehicle. I asked a lot of questions before we traveled. The salesman was very honest about the condition of the vehicle and did a good job sharing pictures that I asked for. We were very happy with the price and condition of the vehicle. We have been driving the vehicle now for three weeks and there have been no surprises.

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.

Owned this suv for 15 months purchased certified preowned with 33k miles and about half the price of new. The truck has only two issues to note but otherwise rides, drives and in all other respects is far and away the best automobile I’ve owned - which saying a lot for an old guy. The standard tires are nearly useless in snow and ice and we hope an aftermarket replacement will address the issue later this fall. The more annoying downfall is that although the ride is otherwise amazing, the truck handles sharp bumps very poorly - almost the feeling of a car with workout struts. I have had the struts replaced under extended warranty but the improvement was marginal. For most drivers the suspension issue wouldn’t likely be as much an annoyance but for my fellow ocders, be warned. I would buy the truck again, however.

Got my car serviced here. Honestly I thought I was in for a lot of money on my Panamera but they replaced the engine for a great price …couldn’t be happier. Ask for Carlos

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.

Purchasing a car was so simple thanks to Autos of Chicago! I was treated with honesty, kindness, and patience by the staff. They genuinely care about their clients and are a trustworthy used car dealer. Everything worked perfectly from beginning to end, and I got a fantastic offer on my automobile. The vehicles were reasonably priced, spotless, and well-maintained. They took the time to thoroughly explain everything, and I never felt hurried or under pressure. I'm thrilled with my purchase and will recommend Autos of Chicago to everyone I know! Thank you so much!

Tiene mucho espacio, perfecta para lo que necesitaba, muy cómoda, segura para mi famlia este modelo es un espectáculo, los asientos muy cómoda, buen motor.

Just took delivery of my second purchase from Ultimo in 4 and a half years. Both times they treated me with respect and transparency. Their service department is easy to work with as well. I live out of state but visit the area quite often due to work and every time I am in I get my maintenance service done there as my local Mercedes dealer charges an arm and a leg even for an oil change. I can say they have a lifelong customer in me. Highly recommend their sales department, Alan, Tash, Chris. Sean in finance is easy and helpful and Nick in service as well. They all treat me like I am part of their team even though I am just another customer from 2 states over.

Good for Travel and Towing, very convenience for every needs. It has most of latest technologies installed inside the car. Many advanced options require users to read the manual.

great selection of cars... Adam has great knowledge. very happy with my tesla. i would buy from them again

The GLS has the luxury of a sedan and the versatility of an SUV. This is the fourth GL series that I have had and would not consider another vehicle.

Jamie was great to work We had a less than great experience at a different Mercedes dealership after contacting Hoffman Estates he stepped up and found us the vehicle that we wanted and had it at the dealership in less than a week The rest of the team was just as great as well They made purchasing our first Mercedes the awesome experience it should be Thanks again to everyone at Hoffman Estates especially Jamie We will definitely return Thanks again Darin and Kay

I am a 60 year old person and I have bought many cars from many dealerships . Buying a car from dealerships have been very stressful and unplesent. Then I stumbled upon Autohaus on Edens . It was an unbelievably pleasant and friendly experience. Just bought a car from Autohause and I will never use another dealership for service or purchasing another car other than Autohause on Edens. Every one in that Dealership is amazing. Call Bobby, if you are in the market for car. He is the best.

Made me feel like family as soon as I walked in very helpful and accommodating to my needs didn?t feel rushed at all great staff and location overall.

Had a great experience. Didn?t try to oversell me. Find a perfect fit, for me. Easy purchase process, I wasn?t there all day. Great job teaching me everything I need to know about the cat.