Frequently Asked Questions

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

• It signals that the vehicle’s onboard diagnostics detected a fault — anything from a loose gas cap to sensor or emissions issues. For a high-performance vehicle like the 2025 Mercedes-Benz AMG GT, early diagnosis prevents performance loss and expensive repairs.
• Our Mercedes-Benz of Lynnfield team runs full battery and engine system checks and connects to factory-level scan tools to identify specific trouble codes and related battery health data.
• We offer clear estimates and explain immediate and long-term savings by correcting issues now — improved fuel economy, preserved turbo health, and extended component life.
• Repairs covered by warranty must be completed at a certified dealership to remain valid; we’ll confirm coverage and help you use available benefits. We also provide service financing to get repairs done today and pay over time.

How long does a check engine light service take?

• Typical diagnostics are completed in about 30–90 minutes depending on code complexity. If a battery test or replacement is needed, many services can be completed the same day.
• At Mercedes-Benz of Lynnfield we prioritize fast turnarounds with skilled technicians, genuine OEM batteries, and express bays where available.
• You can schedule appointment online and review any relevant service specials before arrival to help lower costs immediately.
• Choosing dealership service often reduces long-term ownership costs by maintaining factory warranties and ensuring correct OEM repairs.

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

• Diagnostics generally start at competitive rates; our transparent pricing provides an upfront estimate. As a point of reference, many diagnostics begin around $89 and our dealership pricing and bundled offers often provide better value than many independents while delivering factory-level care.
• We emphasize immediate and long-term savings — accurate diagnosis avoids unnecessary parts replacement and prevents cascading failures that are costlier down the line.
• When repairs are recommended, we present options, OEM part benefits, and warranty details. Remember: warranty-covered repairs must be performed at a certified dealership to keep coverage intact.
• We also offer service financing so you can address repairs now and pay over time; ask our service advisors when you schedule service.

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

• Common causes include oxygen sensor faults, catalytic converter issues, ignition coil or spark plug problems, and occasionally battery or charging system irregularities that affect engine management.
• On performance vehicles, failing sensors or electrical inconsistencies can quickly impact drivability and turbocharger response — timely diagnosis at Mercedes-Benz of Lynnfield protects performance and resale value.
• Our team uses factory scan tools to trace cause and recommend cost-effective repairs, often with available service specials to reduce out-of-pocket expense.

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

• Start with basic checks: battery condition and connections, fuel cap seating, and visible wiring. For the 2025 Mercedes-Benz AMG GT, a quick battery health test and a factory-level code read will reveal next steps.
• If the light is flashing, stop driving and have the vehicle inspected immediately to prevent engine damage. For non-flashing lights, a prompt diagnostic is still important to prevent costly repairs later.
• You can schedule service online with Mercedes-Benz of Lynnfield; our advisors will help prioritize work and identify any applicable service specials or financing options.