Frequently Asked Questions

What does it mean when the check engine light comes on in a 2015 BMW 6 Series Gran Coupe?

• It signals the vehicle’s computer has detected an issue with emissions, ignition, fuel delivery, or a sensor. Our certified technicians at Nalley BMW of Decatur diagnose the root cause with OEM-grade tools.
• We often identify quick fixes (like a loose gas cap) and more complex repairs. Choosing our dealership typically costs less than independent shops while delivering factory-trained expertise that extends vehicle life and reduces long-term repair costs.
• Authorized warranty repairs must be performed at a certified dealership to preserve coverage. Ask our advisors about service financing so you can get necessary repairs now and pay over time.
• To get a professional evaluation, schedule service or check our current service specials.

How long does a check engine light service take?

• Diagnostics are typically completed within an hour. If parts or deeper inspection are required, total time varies but we provide clear, timely estimates.
• Nalley BMW of Decatur prioritizes speed without sacrificing accuracy—our technicians are factory-trained and use BMW-specific procedures to reduce return visits and maximize reliability.
• We offer convenient amenities and transparent pricing. Using our service often saves you money over time through correct repairs and proper OEM parts.
• Ready to visit? Schedule appointment and ask about our service financing and current service specials.

How much does a check engine light diagnostic cost for a 2015 BMW 6 Series Gran Coupe?

• Diagnostic fees vary by issue, but our pricing is competitive. We frequently cost less than independent shops while delivering higher-quality diagnostics.
• Our diagnosis includes a full scan and technician review; if repairs are needed we present options that prioritize value and long-term savings.
• Warranty-covered work must be completed at a certified dealership to remain valid. We also offer service financing to help you get repairs done immediately and pay over time.
• For an exact quote, schedule service or view our service specials for discount opportunities.

What is the most common reason for check engine light on a 2015 BMW 6 Series Gran Coupe?

• Common causes include faulty oxygen sensors, loose or damaged gas caps, ignition coil issues, or turbocharger-related sensor faults. Neglecting these can reduce fuel economy and cause more expensive damage.
• Nalley BMW of Decatur uses OEM diagnostics to pinpoint problems quickly, minimizing downtime and repair costs while ensuring proper parts and procedures are used for lasting repairs.
• We emphasize long-term savings: correct repairs now help avoid cascading failures later. Ask our service advisors about warranty coverage and financing options.
• To get an expert check, schedule service or browse our service specials.

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

• Start with a visual check: secure the gas cap and look for obvious issues. Then bring your vehicle to Nalley BMW of Decatur for a full scan using BMW-specific tools.
• Our factory-trained technicians provide accurate diagnostics and transparent recommendations; our dealership pricing often undercuts independent shops while offering superior technician expertise.
• Remember, warranty-covered repairs must be done at a certified dealership. We also offer service financing so you can address problems immediately and avoid further damage.
• Make an appointment now to protect your vehicle: schedule service or view service specials.