About Our Buick, Cadillac, Chevrolet, GMC Dealership

Diepholz Auto Group in Charleston, IL, Mattoon, IL, Effingham, IL, is proud to be an automotive leader in our community. Since opening our doors, Diepholz Auto Group has maintained our solid commitment to our customers, offering a wide selection of cars and trucks and ease of purchase.

Whether you are in the market to purchase a new or pre-owned vehicle, if you need financing options, we'll help you find a car loan that works for you! Even if you have bad credit, or are a first time car buyer, you can trust that Diepholz Auto Group will professionally fit you into the automobile of your choice.

Diepholz Auto Group has a professionally managed Service and Parts Departments open extended hours to accommodate our customers' busy schedules; and, as always, Diepholz Auto Group offers competitive pricing for your automotive maintenance needs. Please feel free to contact us at (800) 458-0141 if you have any questions or comments.

Diepholz Auto Group offers a full line of service areas including:

  • New Automobile Sales
  • Pre-owned automobile Sales
  • Auto Loans and Financing
  • Certified service department
  • Full selection of Buick, Cadillac, Chevrolet, GMC parts and accessories
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DEALER INFORMATION
Diepholz Auto Group
631 W. Lincoln Ave
Charleston, IL 61920
Phone: (800) 458-0141

Driving Directions & Map

Sales Hours
Mon: 8:30a - 6:30p
Tues: 8:30a - 6:30p
Wed: 8:30a - 6:30p
Thurs: 8:30a - 6:30p
Fri: 8:30a - 6:30p
Sat: 8:30a - 5:00p
Sun: Closed
Service Hours
Mon: 7:30a - 5:30p
Tues: 7:30a - 5:30p
Wed: 7:30a - 5:30p
Thurs: 7:30a - 5:30p
Fri: 7:30a - 5:30p
Sat: 7:30a - 12:00p
Sun: Closed


Thank you for visiting Diepholz Auto Group online. We're proud to be your Charleston Chevy, Buick, and GMC dealer. We carry a wide variety of Charleston used cars and new cars, including some of the most stylish and fuel-efficient models on the road. We carry a great selection of Charleston Illinois used cars for you to choose from, including models from a wide variety of manufacturers.

Be sure to take a look at our online inventory of excellent Charleston Chevy models, like the Traverse, a great family pick and the versatile Avalanche. Looking for an Impala? We have a great selection of those too! Perhaps you’re looking for a new truck. You'll find the very best trucks in America at our Diepholz Charleston GMC and Chevy dealership. We have a great Charleston Silverado inventory and a large selection of GMC Sierras, two trucks that take care of business on and off the road.

Perhaps you’re looking for total luxury. As a Charleston Buick dealer, Diepholz offers several models that meet your needs. There is no arguing that the Buick LaCrosse is at the top of the luxury class, and with its affordable starting price, is a great option for value car shoppers unwilling to sacrifice a wonderful driving experience. Of course, we would not want to overlook the Buick Lucerne and Enclave, each of which bring sleek styling and unique luxury amenities to their drivers.

Whether you're looking for a new Charleston Chevy, one of our many quality Charleston, Illinois used cars, or perhaps a new truck like our Charleston Silverado - we're sure you will find the perfect vehicle to meet your needs at Diepholz Auto Group.

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