Mercedes-Benz Service B
The comprehensive major service — everything in Service A, plus brake fluid, cabin filter, and more
What Is a Mercedes-Benz Service B?
Service B is the major scheduled maintenance in the Mercedes-Benz servicing cycle. It includes everything performed during a Service A, plus additional critical items such as brake fluid replacement, cabin dust filter change, and a more thorough vehicle inspection.
Your ASSYST PLUS system calculates when Service B is due based on your driving conditions — typically every 20,000–25,000 kilometres or 24 months. Service B may also include additional numbered service items (B1, B2, B3, etc.) depending on your vehicle’s age and mileage.
At Anthony Costello Automotive, we carry out every Service B to the exact Mercedes-Benz manufacturer specification — with genuine parts, approved lubricants, and factory-level diagnostic equipment.
What’s Included in Service B
Service B includes everything in Service A, plus these additional items
Synthetic Oil & Filter
Full replacement of engine oil with MB-approved synthetic oil and new oil filter element.
Brake Fluid Exchange
Complete brake fluid flush and replacement with fresh DOT 4 fluid. Brake fluid absorbs moisture over time, reducing braking performance.
Cabin Dust Filter
Replacement of the cabin air filter (combination filter) to maintain air quality and HVAC system efficiency inside your vehicle.
Brake Component Inspection
Detailed inspection of brake pads, discs, calipers, and lines. Wear sensor check with pad thickness measurement and reporting.
Tyre & Fluid Checks
Tyre pressures checked and corrected. All fluid levels inspected — coolant, power steering, washer, and transmission fluid.
Comprehensive Inspection
Full vehicle inspection — lights, wipers, horn, underbody, suspension, steering, exhaust, and safety systems.
Service B Variations — B1, B2, B3 & Beyond
Your dashboard may show a number after the “B” — this indicates additional items are due
All Service B items plus brake fluid exchange. This is the most common Service B variation and the baseline major service for your Mercedes-Benz.
All B1 items plus automatic transmission fluid and filter service and suspension inspection. Typically due around 60,000–80,000 km.
All Service B items plus engine air filter replacement and either spark plug replacement (petrol) or fuel filter replacement (diesel). Due around 60,000–100,000 km depending on model.
Combines multiple additional items — may include air filter, fuel filter, spark plugs, transmission service, coolant renewal, and sunroof rail lubrication. Reserved for higher-mileage service intervals.
Service A vs Service B — What’s the Difference?
Service A is the minor service covering oil, filter, and basic inspections. Service B includes everything in Service A plus additional items. Here’s a quick comparison:
| Item | Service A | Service B |
|---|---|---|
| Synthetic oil & filter change | ||
| Fluid level checks & corrections | ||
| Tyre pressure & condition check | ||
| Brake inspection | ||
| Vehicle safety inspection | ||
| Service counter reset | ||
| Cabin dust filter replacement | ||
| Brake fluid exchange | ||
| Additional items (B1–B4+) |
Book Your Mercedes-Benz Service B
Service B due on your dashboard? Our factory-trained technicians carry out every item to Mercedes-Benz specification — at independent pricing.
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