Frequently Asked Questions

What does it mean when the check engine light comes on in a 2025 Mercedes-Benz CLE?

• It signals the vehicle’s onboard diagnostic system has detected an issue—anything from a loose gas cap to emissions, sensor, or engine problems.
• At Mercedes-Benz of Chesterfield our technicians use factory-level diagnostic tools to read codes and explain results clearly so you can make an informed decision.
• We often cost less than independent shops while providing factory-trained techs, OEM parts, and detailed warranties—translating to immediate savings and longer-term reliability.
• Warranty-covered repairs must be performed at a certified dealership to preserve coverage and ensure OEM parts are used.
• Ask about service financing to get repairs now and pay later, and to protect the long-term value of your 2025 Mercedes-Benz CLE.

How long does a check engine light service take?

• Simple diagnostics and code reads often take 30–60 minutes; more complex repairs can require several hours depending on parts and testing.
• At Mercedes-Benz of Chesterfield we prioritize quick, accurate assessments and clear timelines so you know what to expect before any work begins.
• We use OEM parts and factory procedures to minimize repeat visits, which saves you time and money over the life of the vehicle.
• To maintain convenience, you can schedule service online and view current service specials that reduce out-of-pocket costs.
• Remember: warranty repairs must be done at a certified dealership to remain valid—our team handles warranty paperwork for a smooth process.

How much does a check engine light diagnostic cost for a 2025 Mercedes-Benz CLE?

• Diagnostics vary by issue, but many check engine diagnostics start near $95 and are competitively priced at our dealership.
• Because we provide factory-trained technicians and OEM tooling, many customers realize immediate savings through accurate diagnostics and long-term savings by avoiding improper repairs.
• We offer transparent estimates before work begins and highlight options that extend the life of your vehicle and protect resale value.
• Service financing is available so you can address problems promptly without delaying necessary repairs.
• Check our service specials and schedule appointment to lock in savings and swift service at Mercedes-Benz of Chesterfield.

What is the most common reason for check engine light on a 2025 Mercedes-Benz CLE?

• Common causes include faulty oxygen sensors, evaporative system leaks (such as a loose gas cap), catalytic converter issues, or ignition components.
• Our technicians in Chesterfield, MO, isolate root causes with OEM-grade diagnostics so you avoid unnecessary repairs and protect long-term performance.
• Choosing dealership service often reduces lifetime ownership costs by using correct parts and procedures that maximize fuel economy and avoid recurring faults.
• If covered by warranty, repairs must be completed at a certified dealership; we make that process straightforward and efficient.
• To get an accurate diagnosis, schedule service online and review current service specials.

What is the first thing to check when the check engine light comes on?

• First, secure the vehicle and check for obvious issues—loose gas cap, unusual noises, or severe drivability problems.
• Next, have a certified diagnosis done as soon as possible; early identification at Mercedes-Benz of Chesterfield reduces repair complexity and cost.
• We emphasize transparent pricing, OEM parts, and factory-trained technicians to ensure immediate and long-term savings compared to trial-and-error repairs.
• If repairs are needed under warranty, they must be performed at a certified dealership to keep coverage valid—our advisors handle authorization and paperwork.
• Use our online tools to schedule service or view service specials to reduce your upfront expense—service financing is available for qualified buyers.