New and used 2026 Mercedes-Benz GLC 300 for sale near West Islip, NY

I had reached out to several car dealers regarding Mercedes and BMWs and Rodni was the first to respond. Even though I live in Central NJ, his prompt response was impressive so I went out to this dealership a few days later. I wound up purchasing a beautiful Mercedes and I'm very pleased with my dealership experience.

We just purchased a car from this dealership, and the experience was night and day compared to our prior one at another Mercedes dealer. The team here is incredibly friendly, down-to-earth, and easygoing—such a refreshing change! Albert is the one who helped us, and he truly went above and beyond. He was patient, helpful, and never pushy. He even took the extra steps to help us clean out our old car, remove the old box and items, and made sure everything was taken care of. It was such a smooth and relaxed experience—nothing like the stressful process we had at the other dealership. Highly recommend working with Albert if you’re looking for a great car-buying experience!

Amazing Team! Albert Salib was great help and very kind. Helpful team all around and great environment in the dealership!

Jay and his manager Evan were a pleasure to deal with. Highly recommend Greenwich Mercedes. Ty Mark

Just had a great experience with the purchase of a Pre-Owned MB E350 wagon! Carlos Nazario, the salesman, was great at follow up and making sure everything was ready on time and the car was perfect! Bob Lasagne and Thomas Rudaj were also great to work with, professional and honest and made sure everything was right. I highly recommend this dealership, great comfortable showroom, everyone was very friendly and a pleasure to deal with. Lots of searching for cars and found the right one here!

Leticia did an outstanding job helping us through the entire purchase process! She went the extra 10miles every time to address our questions and concerns with patience and a smile!

Very professional & knowledgable & friendly Honest trustworthy fast service helped me as soon as I walked in had #'s for me I had my vehicle the next day

My Mercedes Experience of RVC is always pleasant, effortless and professional because of my incredible salesman, Craig German. Craig sold us our first Mercedes and we haven't dealt with anyone since that time. Not only is Craig extremely professional, he is knowledgeable about the product he sells. He is just an overall nice guy, who enjoys the public and making sure his customers are satisfied. More people in sales should be like him. We don't want to deal with anyone else! We hope Craig is there whenever we want to do some future business with MB of RVC!!

MB of Rockville Center is the best dealership. Thomas Ahrens is the best sales agent, ask for Tommy if you are in the market for a Mercedes Benz. The staff is very friendly and professional, I enjoyed my purchasing experience.This was my second Mercedes Benz.

My experience at Mercedes Benz of Rockville Center exceeded my expectations. My salesperson, Jerone Sealy was exceptional, he was friendly , professional and displayed a very calm demeanor in his approach to selling. I never felt pressured. Jerone explained in detail every question I had regarding the vehicle. He was very knowledgeable and provided excellent customer service from the beginning to the end of the sale. If I had to rate him from 1 - 10 he deserves an 11. Jerone Sealy thank you so much. I love my GLE 43 Coupe just as you said I would. You are a top notch salesperson!

I have been purchasing MB automobiles from RVC MB since the 80’s .. I’ve always used the same salesman , Mr Tom Ahrens . Tom has always ensured that my new car purchase goes as smooth as possible .. I’ve always shopped price prior to making the deal - Tom has always beaten the competition prices - a great car coupled with a smooth transaction and a caring salesman working for a reputable dealership works for me !!

Mr ANTHONY ANGELO was the best customer service we have experienced in quite a while. REPRESENTATIVES of this nature should be commended and placed in charge of that department .EXCELLENT CUSTOMER SERVICE!

Mercedes of Massapequa makes shopping for a car easy and effortless. Albert helped me through the whole process of buying the car and getting the best deal possible. 100% recommend this dealership and make sure to ask for Albert!

Best customer service and very smooth process. Highly recommend going to Albert Salib. He made the purchase smoothly. I recommend my family and friends to see Albert!!

I had an outstanding experience at the Mercedes-Benz dealership thanks to Albert Salib. His professionalism, deep product knowledge, and genuine commitment to helping me find the perfect car at a great price made the entire process seamless. Albert went above and beyond, and I couldn't be happier with my purchase. Highly recommend working with him!

TONY MANGIOLINO WAS TERRIFIC HE WAS A TRUE GENTLEMAN--NEGOTIATION PROCESS WAS PAINLESS. DID NOT PURCHASE CAR YET--BUT WILL TURN BACK TO HIM IN NEAR FUTURE FOR PURCHASE