Frequently Asked Questions

What does it mean when the check engine light comes on in a 2026 BMW 3 Series?

• It indicates the vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to emissions, ignition, or sensor faults. Our factory-trained technicians at Nalley BMW of Decatur diagnose the root cause quickly to avoid repeated trips and larger repairs.
• Choosing our dealership means OEM parts, transparent estimates, and service financing so you can get repairs now and pay later. We often cost less than independent shops when you factor immediate and long-term savings from correct, warranty-backed repairs.
• For convenience and confidence, schedule service online or check current service specials before you arrive.

How long does a check engine light service take?

• Diagnostics typically take under an hour for most engine-light scans; follow-up repairs vary by issue. At Nalley BMW of Decatur we prioritize quick turnarounds and clear timelines so you can plan your day.
• We use OEM diagnostic tools and factory procedures to reduce repeat visits, which saves you time and money in the long run. Service financing is available to help with immediate needs.
• To reserve a convenient time, schedule appointment and review our service specials for added value.

How much does a check engine light diagnostic cost for a 2026 BMW 3 Series?

• Diagnostics at Nalley BMW of Decatur start competitively — many customers pay under $100 for an initial scan and code interpretation. Our pricing reflects certified service and immediate, accurate fixes that reduce long-term expenses.
• Because we use OEM parts and factory procedures, you avoid repetitive costs from improper repairs. Repairs covered under warranty must be performed at a certified dealership to remain protected.
• We offer service financing and frequent service specials. To get an accurate estimate, schedule service today.

What is the most common reason for check engine light on a 2026 BMW 3 Series?

• Common causes include oxygen sensor faults, catalytic converter issues, ignition coil or spark plug wear, and emissions system irregularities. Left unchecked, these can reduce fuel economy and lead to expensive repairs.
• Nalley BMW of Decatur pinpoints the precise code and explains both immediate fixes and preventive maintenance to protect your vehicle’s longevity and resale value.
• Use our online tools to schedule appointment and review our service specials to maximize savings.

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

• Check for obvious issues like a loose gas cap; then bring the vehicle in for a professional scan. Our certified team at Nalley BMW of Decatur uses BMW-specific diagnostics to identify exact codes rather than guessing.
• Prompt diagnosis saves fuel and prevents further damage. We offer transparent pricing, OEM parts, warranty protection, and service financing so you can get repairs now and avoid larger bills later.
• To minimize downtime, schedule service online and see available service specials.