How much does a Tune-up cost for Mercedes 420-SEL?

The cost of a tune-up for a Mercedes 420-SEL typically ranges from $300 to $800, depending on factors such as location, service provider, and specific maintenance needs. This range often includes inspections, spark plug replacements, air and fuel filter changes, and fluid checks. It's advisable to consult with a certified Mercedes mechanic for an accurate estimate tailored to your vehicle's condition and service history.