Frequently Asked Questions

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

• Confirm safety first: check instrument cluster messages and gauges for critical warnings before continuing to drive.
• Look for obvious alerts about the high‑voltage system, charging faults, or thermal warnings specific to the 2017 Mercedes‑Benz B‑Class Electric Drive.
• Verify the charging cable and port are properly connected if the issue appeared after charging.
• Check the 12‑volt battery and fuses — low 12V voltage can trigger hybrid/EV fault lights even when the traction battery is fine.
• If you see a flashing light or loss of power, stop driving and contact Park Place Motorcars Fort Worth for immediate evaluation.

How much does a check engine light diagnostic cost for a 2017 Mercedes‑Benz B‑Class Electric Drive?

• Diagnostic fees typically range from about $100–$200 depending on inspection depth and whether specialized EV equipment is required.
• At our dealership you often pay less than independent shops when you factor in accurate diagnosis, factory tools, and parts quality — and many times the diagnostic fee is credited toward necessary repairs.
• Certified repairs covered under warranty must be performed at a Mercedes‑Benz dealership to preserve coverage.
• We prioritize long‑term savings by fixing root causes rather than clearing codes, which reduces repeat visits and unexpected costs.

What does it mean when the check engine light comes on in a 2017 Mercedes‑Benz B‑Class Electric Drive?

• The warning can indicate issues ranging from a simple sensor fault to high‑voltage battery, inverter, or thermal management problems specific to EVs.
• It may reflect 12‑volt system issues that affect vehicle electronics and can often be resolved quickly, or deeper traction‑system faults that need dealer diagnostics.
• Because EV systems are tightly integrated, accurate diagnosis with factory scanners at our dealership helps avoid unnecessary part replacements.
• Repairs covered by warranty must be done at a certified dealership; our factory-trained technicians ensure correct service and long‑term reliability.

What is the most common reason for check engine light on a 2017 Mercedes‑Benz B‑Class Electric Drive?

• Common causes include battery management or charging system faults, inverter/drive motor sensor issues, and thermal system warnings—each specific to electric drive vehicles.
• Less severe triggers can be 12‑volt battery or sensor failures that still require proper testing to confirm the root cause.
• Our technicians use Mercedes‑Benz diagnostics to pinpoint whether the alert is minor or requires immediate attention, minimizing needless expense.
• Addressing problems promptly at a certified dealership often lowers total ownership costs by preventing escalation and preserving warranty coverage.

How long does a check engine light service take?

• Simple diagnostics and minor repairs can often be completed within 1–3 hours; more complex EV system repairs may require same‑day or multi‑day service depending on parts availability.
• When specialized testing or software updates are needed, our factory tools and parts access speed the process versus shops without Mercedes‑Benz equipment.
• We provide clear timelines and explain immediate versus recommended repairs so you can make informed decisions about cost and downtime.
• If warranty work is involved, repairs must be performed at a certified dealership to preserve coverage; this can save you money over time by avoiding denied claims.