Mercedes B3 Service: Meaning, Cost, Checklist & Reset Guide
The Mercedes B3 Service is a major maintenance interval occurring at approximately 60,000 miles or 6 years. It includes engine oil and filter changes, brake fluid replacement, spark plug inspection, and fluid level checks. As the third major service in the A1→B1→A2→B2→A3→B3 sequence, timing is determined by the Flexible Service System based on driving conditions….










