Mercedes-Benz of Chesterfield

Mercedes-Benz New Car Dealership in O Fallon, MO

951 Technology Dr
O Fallon, MO 63368

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Sales: 855-315-3707

Used Cars: 855-315-3707

Hours Toggle

Sales Department

Sun Closed
Mon 9:00am – 8:00pm
Tue 9:00am – 6:00pm
Wed 9:00am – 8:00pm
Thu 9:00am – 6:00pm
Fri 9:00am – 7:00pm
Sat 9:00am – 6:00pm

Service Department

Sun Closed
Mon 7:30am – 6:00pm
Tue 7:30am – 6:00pm
Wed 7:30am – 6:00pm
Thu 7:30am – 6:00pm
Fri 7:30am – 6:00pm
Sat 8:00am – 12:00pm
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Reviews of Mercedes-Benz of Chesterfield

Overall Rating:

4.6 (out of 5)

89% recommend this dealer

262 total reviews

Showing the most recent reviews from Cars.com and DealerRater.

5.0 (out of 5)

Excellent Service!

Reviewed by Rashondra Pate from Wildwood , MoJanuary 25, 2026

Excellent Service!!!! I love this place! Will definitely recommend to more customers! My car is one of a kind and definitely is unique to my personality! Mercedes is definitely hands down the best luxury car choice! Go get yours today!

  • Does recommend this dealer
  • Shopped for a new car
  • Did make a purchase

Dealer Response

Hi, thanks so much for rating us so high! Be safe on the road!

Overall Facilities N/A

Customer Service N/A

Buying Process N/A

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Maximum rating = 5

5.0 (out of 5)

Amir, Roy and Chad all provided great costumer service.

Reviewed by DanjosmithJanuary 25, 2026

Amir, Roy and Chad all provided great costumer service. Awesome service and wonderful experience Happy!

  • Does recommend this dealer
  • Shopped for a used car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

5.0 (out of 5)

Personnel at this place were very courteous, spent good

Reviewed by vinayakrajagopalJanuary 03, 2026

Personnel at this place were very courteous, spent good amount of time explaining service details. Service was completed efficiently. Deanne was excellent and answered questions I had, and kept updating periodically.

  • Does recommend this dealer
  • Came in for service or repair

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

About Mercedes-Benz of Chesterfield

From new Mercedes-Benz models to used luxury cars... From routine maintenance to repairs...Plaza Motors West serving the greater St. Louis area and beyond has you covered.
You can also visit Plaza Motors West in person and see for yourself our stellar lineup of new Mercedes-Benz models including the C-Class CLA-Class E-Class GLA-Class M-Class and GL-Class; our impressive used car inventory; and our top-notch auto repair and service facilities.

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Want more details on Mercedes-Benz vehicles?

Mercedes-Benz

AMG GLC 43, AMG GLE 53, C-Class, CLA 250, CLE 300, E-Class, EQB 300, EQE 350, G-Class, GLA 250, GLB 250, GLC 300, GLC 350e, GLE 350, GLE 450, GLE 450e, GLS 450, Sprinter 2500
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