Frequently Asked Questions

What does it mean when the check engine light comes on in a 2015 BMW ALPINA B6 Gran Coupe?

• It indicates that an onboard sensor has detected a fault — anything from a loose gas cap to an emissions, ignition, or turbocharger issue. Diagnostics at Nalley BMW of Decatur detect the exact fault code quickly.
• Getting a prompt diagnostic often saves money by preventing escalation; our certified technicians use OEM tools to find the root cause and recommend repairs that protect long‑term vehicle value.
• Repairs covered under warranty must be completed at a certified dealership to retain coverage. We also offer service financing to get needed work done now and pay later.
• To book, please schedule service or check current service specials for potential savings.

How long does a check engine light service take?

• Most diagnostics finish within an hour; repairs vary. At Nalley BMW of Decatur we prioritize transparency and speed—your advisor provides a clear time estimate after the initial scan.
• Because we stock OEM parts and have factory-trained technicians, many common repairs are completed the same day, minimizing downtime and delivering immediate and long-term savings.
• We offer convenient amenities and a comfortable waiting area, plus service financing if you need flexibility. To reserve a time, schedule appointment.

How much does a check engine light diagnostic cost for a 2015 BMW ALPINA B6 Gran Coupe?

• Diagnostic pricing varies by issue, but Nalley BMW of Decatur often costs less than independent shops while delivering OEM parts, tech certification, and warranty protection—translating to immediate and long-term savings.
• If additional repairs are needed, we present clear estimates and available discounts through our service specials.
• Remember: warranty-covered repairs should be completed at a certified dealership to keep coverage intact. Service financing is available to help you get back on the road now.

What is the most common reason for check engine light on a 2015 BMW ALPINA B6 Gran Coupe?

• Common causes include ignition or fuel system faults, oxygen sensor failures, or turbocharger-related sensors. Left unaddressed, these can reduce performance and fuel economy and increase repair costs.
• Our technicians use factory-grade diagnostics to identify the exact fault, explain repair options, and protect the car’s performance and resale value.
• To learn about current offers and savings, view our service specials and schedule service online.

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

• Start with simple checks like a securely tightened fuel cap. If the light persists, bring the vehicle to Nalley BMW of Decatur for a professional scan so issues are diagnosed correctly and quickly.
• We recommend acting early — early diagnosis avoids cascading failures and saves money over time. Warranty work must be handled at certified dealerships to remain valid.
• Use our online tools to schedule appointment or review service specials before you visit.