Frequently Asked Questions

What does it mean when the check engine light comes on in a 2023 Mercedes-Benz S-Class?

• It signals a detected fault in emissions, engine, transmission, or electrical systems — from loose gas caps to misfires or sensor failures.
• At Park Place Motorcars Arlington our Mercedes-Benz-certified technicians perform a full scan and explain necessary repairs, expected costs, and warranty coverage.
• Addressing faults promptly at our dealership often costs less than independent shops over time due to accurate diagnostics, OEM parts, and reduced repeat repairs.
• If covered by warranty, required repairs must be completed at a certified dealership to maintain coverage; ask about service financing to manage larger repairs.
• To get started, schedule service and take advantage of available service specials.

How long does a check engine light service take?

• Diagnostics typically take 30–90 minutes depending on tests required; straightforward battery or sensor replacements can often be completed the same day.
• Park Place Motorcars Arlington prioritizes fast turnaround using OEM parts and diagnostic tools tuned for Mercedes‑Benz systems.
• We provide clear time estimates and updates so you know when your 2023 Mercedes-Benz S-Class will be ready, delivering immediate and long-term savings through accurate repairs.
• You can schedule service online to reserve a convenient appointment and review current service specials.

How much does a check engine light diagnostic cost for a 2023 Mercedes-Benz S-Class?

• Our dealership frequently offers competitive diagnostic pricing that can be less than independent shops when you factor in accurate troubleshooting, OEM parts, and warranty protection.
• Diagnostic charges vary by inspection depth; we will quote diagnostics and repair estimates up front so you see immediate and long-term savings from correct repairs.
• Many repairs stemming from diagnostics are covered by warranty when performed at a certified dealership — warranty work must be completed at a certified location to remain valid.
• Ask our service team about financing options to make necessary repairs manageable and schedule an appointment today.

What is the most common reason for check engine light on a 2023 Mercedes-Benz S-Class?

• Common causes include oxygen sensor faults, evaporative emission leaks (loose gas cap), misfires, or catalytic converter inefficiencies.
• Small issues left unresolved can cause larger, costlier damage; our certified techs use OEM diagnostics to prevent repeat visits and protect resale value.
• Park Place Motorcars Arlington emphasizes transparency: we explain repair needs, timelines, and how choosing dealership service can reduce lifetime ownership costs.
• Reserve time to diagnose quickly via schedule service and review any service specials.

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

• Check basic items first: ensure the fuel cap is tight and inspect for obvious signs like low oil, low battery voltage, or fluid leaks.
• Because modern Mercedes systems are complex, Park Place Motorcars Arlington recommends a professional scan to avoid missed diagnoses; dealership service often saves money over time by preventing escalation.
• If you have warranty coverage, repairs must be done at a certified dealership to remain valid; we also offer financing to handle unexpected repairs without delay.
• To get a verified reading and recommended next steps, schedule service online today.