Frequently Asked Questions

What does it mean when the check engine light comes on in a 2022 BMW 7 Series?

• It indicates the vehicle’s onboard diagnostics detected a fault — anything from a loose gas cap to an emissions, ignition, or sensor issue. Our technicians at Nalley BMW of Decatur diagnose the root cause using OEM-level tools so you get the right repair the first time.
• Common outcomes include repairable sensor or emission faults, which our certified techs correct with genuine BMW parts to preserve performance and warranty protection.
• Choosing Nalley BMW of Decatur often costs less than independent shops when you factor in accurate diagnostics, long-term reliability, and our factory-trained technicians. We emphasize immediate and long-term savings through correct repairs, OEM parts, and fewer repeat visits.
• Warranty-covered repairs must be completed at a certified dealership; our service advisors will confirm coverage and explain available options. We also provide service financing so you can get service now and pay later.
• To arrange inspection, please schedule service and check current offers on our service specials.

How long does a check engine light service take?

• Typical diagnostics take 45–90 minutes depending on symptoms and whether drive testing is required. Complex issues may require extended testing or parts ordering.
• Nalley BMW of Decatur prioritizes quick turnaround with factory diagnostic equipment and experienced technicians to reduce downtime for owners in Decatur, GA.
• We’ll provide a clear estimate and timeline before work begins, and you can take advantage of our service specials or service financing to make the repair affordable.
• To book a fast appointment, schedule appointment online and we’ll confirm availability and expected completion time.

How much does a check engine light diagnostic cost for a 2022 BMW 7 Series?

• Diagnostic fees vary by issue, but our pricing is transparent. We often deliver better value than independent shops because dealership diagnostics pinpoint the true cause and avoid unnecessary repairs.
• After diagnosis, our advisors will present repair options, associated costs, and warranty details so you can weigh immediate and long-term savings.
• If your repair is covered under warranty, it must be performed at a certified dealership — our team will handle authorization and complete the repair with OEM parts.
• Use our online scheduler to schedule service or review current offers on service specials.

What is the most common reason for check engine light on a 2022 BMW 7 Series?

• Common triggers include oxygen or mass airflow sensor faults, ignition coil or spark plug issues, or emissions system faults. Hybrid or plug-in variants can also show battery- or charging-related codes.
• Ignoring these warnings can increase fuel use, reduce performance, or cause more expensive repairs; early dealership diagnosis protects vehicle value and efficiency.
• Nalley BMW of Decatur uses OEM diagnostics to identify the true cause and recommend cost-effective repairs backed by warranty and quality assurance.
• We encourage owners to schedule service promptly and explore our service specials for potential savings.

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

• First check for obvious issues like a loose fuel cap; then limit driving and seek diagnostics if the light stays on. A flashing light indicates a severe problem — stop driving and contact Nalley BMW of Decatur immediately.
• Bring your vehicle in so our certified technicians can run an accurate scan. Dealer diagnosis prevents misdiagnosis and ensures any warranty-covered work is handled correctly.
• We offer service financing, transparent pricing, and OEM repairs to maximize long-term savings and preserve vehicle performance.
• To get started quickly, schedule service or review our service specials.