Frequently Asked Questions

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

• Verify the gas cap is fully tightened — a loose cap is a common and inexpensive cause on the 2018 Mercedes-Benz AMG GT.
• Check for obvious issues: unusual noises, loss of power, smoke, or fluid leaks that indicate immediate risk.
• If the vehicle runs normally, book a diagnostic with us; our certified technicians will scan codes with OEM tools to avoid guessing repairs.
• Remember: any repairs covered under warranty must be completed at a certified dealership to preserve coverage and ensure long-term savings.

How long does a check engine light service take?

• Initial diagnostic typically takes 30–60 minutes using manufacturer-grade scanners to read and interpret fault codes on the 2018 Mercedes-Benz AMG GT.
• Simple fixes (e.g., gas cap, sensor replacement) can often be completed the same day; complex repairs may require parts and additional labor time.
• We provide clear time estimates before any work and prioritize efficient turnaround to reduce downtime and ownership cost.
• Using our dealership often reduces return visits and long-term expense because factory-trained techs identify related issues early and protect warranty coverage.

What does it mean when the check engine light comes on in a 2018 Mercedes-Benz AMG GT?

• It indicates the vehicle’s onboard diagnostics detected a fault — from emission controls to engine misfires — that needs evaluation.
• Codes range from minor (loose gas cap or sensor drift) to serious (misfire, catalytic converter efficiency loss) and require accurate diagnosis to avoid unnecessary repairs.
• At Park Place Motorcars Fort Worth we use OEM-level equipment to pinpoint causes quickly, which lowers immediate repair costs and prevents costly downstream damage.
• Warranty-covered repairs must be performed at a certified dealership to maintain protection and realize the full long-term savings we provide.

How much does a check engine light diagnostic cost for a 2018 Mercedes-Benz AMG GT?

• Diagnostic fees vary by complexity; many dealer diagnostics are competitively priced and often cost less than independent shops when factoring accuracy, parts quality, and warranty protection.
• Simple scans are typically affordable — we provide upfront pricing and explain immediate and long-term savings from correct OEM repairs versus repeated independent attempts.
• If repairs are needed, we recommend OEM parts and factory-trained technicians to protect performance and warranty coverage, often reducing lifecycle costs.
• Check our current service specials and schedule online to confirm diagnostic pricing and available savings at Park Place Motorcars Fort Worth.

What is the most common reason for check engine light on a 2018 Mercedes-Benz AMG GT?

• Common causes include loose or damaged gas caps, oxygen sensor failures, catalytic efficiency codes (P0420), and engine misfires — especially on high-performance twin-turbo V8s.
• Some issues are minor and inexpensive to fix; others, like catalytic converter damage caused by prolonged misfires, can be costly if unaddressed.
• Prompt dealer diagnostics prevent escalation; our technicians identify root causes and recommend the most cost-effective, warranty-safe repairs.
• Choosing dealership service often yields immediate savings through accurate repair and long-term savings by preventing repeat failures that independent shops sometimes miss.