What does it mean when the check engine light comes on in a 2012 Rolls-Royce Phantom Coupe?

• It signals that the vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to a battery/charging or emissions problem. At Rolls-Royce Motor Cars Boston we diagnose the root cause quickly and accurately with factory-grade tools.
• Our certified technicians explain repair options, OEM part needs, and long-term benefits — including improved reliability and preserved resale value.
• We often cost less than independent shops because of efficient diagnostics, precise repairs, and service workflows that reduce repeat visits. We also offer service financing so you can get service now and pay later.
• Remember: any repair covered under warranty must be completed at a certified dealership to keep coverage valid.

How long does a check engine light service take?

• Basic diagnostics typically take about 30–60 minutes. More involved repairs or battery and charging-system tests can require additional time, which we estimate up front.
• At Rolls-Royce Motor Cars Boston we prioritize fast, transparent service and keep you informed throughout. If you need to schedule service, we offer express lanes and comfortable customer amenities to make your visit efficient.
• We recommend checking our service specials before arriving for possible savings and discounts on diagnostics and battery replacement.

How much does a check engine light diagnostic cost for a 2012 Rolls-Royce Phantom Coupe?

• Diagnostic fees vary by cause and labor time. Our dealership provides clear estimates before any repair so you understand immediate and long-term savings from performing work with OEM parts and factory-trained technicians.
• Because we use precise diagnostics and genuine parts, many customers save over time via fewer repeat repairs and stronger warranty coverage — and we often cost less than independent shops while delivering higher service standards.
• Ask about service financing to spread payments; and check our service specials for current offers.

What is the most common reason for check engine light on a 2012 Rolls-Royce Phantom Coupe?

• Common triggers include sensor faults, emissions control issues, or charging and battery faults that affect engine electronics. In many luxury vehicles a weak battery or alternator can create codes that mimic other system problems.
• Our technicians at Rolls-Royce Motor Cars Boston use targeted testing to distinguish battery/charging issues from engine faults, reducing unnecessary repairs and delivering reliable solutions.
• Warranty repairs must be performed at a certified dealership to keep coverage intact; we’ll explain any warranty implications before work begins.

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

• Start with basic checks: secure fuel cap, recent service history, and visible battery/connection issues. Then bring the vehicle to our service team for a computerized scan and battery test.
• At Rolls-Royce Motor Cars Boston we provide fast, transparent diagnostics and can often resolve issues the same day. To schedule appointment, use our online scheduler and see available times that fit your schedule.
• We recommend reviewing current service specials before arrival — and remember, we offer service financing to make repairs easier to manage.