1. Schedule Your Appointment
Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.
2. Diagnostics and Inspections
Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.
3. Digital Vehicle Inspection Report and Estimate
Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.
4. Review and Approval
A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.
5. Work Performed or Scheduled
Most work can be completed immediately, or scheduled based on parts and customer availability.
Why Arnold Diesel Owners Choose Christian Brothers Automotive Arnold
Every Diesel Repairs and Services job we complete is backed by the Nice difference.® warranty: 3 years or 36,000 miles, honored at any Christian Brothers Automotive location nationwide. That coverage reflects confidence in our work, and it travels with you.
Christian Brothers Automotive has been ranked #1 in Customer Satisfaction Among Aftermarket Full-Service Maintenance and Repair Providers in the J.D. Power 2025 Aftermarket Service Index (ASI) Study for the sixth consecutive year. Our Arnold location also holds AAA Approved Auto Repair and Costco Approved Repair Shop designations.
We know your schedule doesn’t stop because your truck is in the shop. That’s why we offer complimentary shuttle service and courtesy loaner vehicles. Financing is available through Synchrony, and we work with all major extended warranty providers.
Schedule your diesel service online or call us at (636) 747-4255. Wes and the team are ready to help.
Learn more about what a diesel maintenance visit covers and what warning signs to watch for between services.
What a Diesel Maintenance Visit Covers
Every diesel service at our Arnold shop includes a complimentary courtesy inspection of your lights, brakes, suspension, tires, and battery alongside the diesel-specific work. Manufacturer-recommended maintenance intervals can vary based on how you use your vehicle. Towing, hauling, or frequent stop-and-go driving in Jefferson County traffic can shorten those intervals compared to highway-only use.
A typical visit addresses diesel-specific oil and filter changes, fuel and air filter inspection and replacement, and glow plug and battery testing. Missouri’s cold winters and hot, humid summers put real demands on diesel cold-start performance, fuel system operation, and battery output, making consistent maintenance especially worthwhile here.
Warning Signs Your Diesel Needs Professional Attention
Diesel engines run louder than gasoline engines under normal conditions, which can make it harder to notice when something sounds wrong. Several symptoms, though, point clearly to a problem that warrants a diagnostic visit.
Common diesel warning signs include:
- Hard starting or no-start conditions, particularly in cold weather
- Loss of power or slow acceleration that wasn’t there before
- Excessive exhaust smoke in black, white, or blue
- Noticeable drop in fuel economy over time
- Unusual engine noise beyond the normal diesel operating sound
- A check engine light that stays on or flashes
These symptoms can point to issues with fuel pressure, injectors, the turbocharger, or emissions components. Catching them early can help prevent more costly repairs and support engine life. If you’re noticing any of these signs, bring your vehicle in and we can find out what’s going on.
Your Local Christian Brothers Amenities
FAQs
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Q. "Do you offer a warranty?"As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a 3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
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Q. "What is a Digital Vehicle Inspection?"With a complimentary Digital Vehicle Inspection (DVI) on every visit, you’ll see firsthand photos of your vehicle from under the hood. We’ll let you know if everything is functioning properly or if there are any areas of concern. You can even approve or deny our service recommendations, all straight from your smartphone, or you can, of course, give us a call and we’ll explain our findings in further detail.
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Q. "Can you provide service under my extended warranty?"Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.
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Q. "My car is make x and model x. Can you help me?"Yes! Christian Brothers Automotive has been providing reliable car maintenance and repair for over 40 years. Over that time, our professionals and ASE-certified technicians have handled a vast range of makes and models, and they continue to navigate the forefront of the auto industry’s technologies. If you own a vehicle from a major American or foreign car maker, we are ready to service it.
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Q. "Do you offer loaner vehicles or a shuttle service?"We understand you have a full schedule. Whether you need to get to work, school, or need to attend to other responsibilities, we can take you where you need to go and even pick you up and bring you back.. Just select the shuttle service option when scheduling or let the service writer know when you call to make your appointment. For more information on our free shuttles, click here.
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Q. "Can I bring my own parts?"Yes, although we will not be able to offer our 3-year/36,000-mile warranty on these parts. Please reference this in your appointment details in the scheduler or when calling to make your appointment to ensure the shop is aware of your plans.
Have more Questions?
Our friendly auto service experts have the answers.
Call your local Christian Brothers Automotive car shop today
Hear What Our Customers Had to Say About Us
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"Recommend for all your automotive needs."
- T. OB