Mercedes B Service Checklist MERCEDES-BENZ C-Class Coupe (C204) (01.2011 - ...)

The B Service for your 2015 Mercedes C-Class, which typically happens every 40,000 km or 2 years, is a more comprehensive check than the A Service and covers a wide range of parts and functions.

Specifically for the transmission fluid check, the process involves inspecting fluid levels, condition, and possible leaks in the engine compartment. Some models require a full transmission fluid replacement, but many newer Mercedes use a sealed system, so the fluid level might be checked with the engine running and the car on a lift. Special tools and diagnostic devices are often needed for proper fluid flushing and refilling, especially on models with the 7G-Tronic or 9G-Tronic automatic transmissions.

For the brake component inspection during B Service, mechanics will visually check brake pads for thickness and wear, inspect brake discs for cracks or damage, and check brake fluid levels. They also test the function of the parking brake. This inspection ensures that the brakes are safe and effective, and fluid replacement is recommended every two years since brake fluid absorbs moisture, reducing braking efficiency.

Tips:
- Make sure the brake fluid used is DOT 4, which is what Mercedes vehicles usually require.
- The brake fluid flush will include bleeding to remove air bubbles and replace old fluid.
- For the transmission fluid, if it needs replacing, it’s best done by specialists due to the complexity and need for specific diagnostic procedures.
- The B Service also includes checks on lights, tires, belts, and other safety components, so it’s a thorough health check on your car overall.

In summary, the B Service checks and top-ups or replacements for transmission and brake fluids are detailed and use manufacturer procedures. Getting it done at a trusted Mercedes service centre or specialist garage ensures the job is done to spec.

Hope this clears up the transmission fluid check and brake inspection parts of your B Service!

Service B for your Mercedes C-Class (W205, 2015) is a comprehensive scheduled maintenance and inspection.

Service B Summary (Key Points)
1. Replacement:
- Oil and oil filter (always).
- Cabin filter (air/pollen).
- Brake fluid (required every 2 years).
2. Brake component inspection (your question):
- This is a visual inspection and wear measurement: checking the thickness of the brake pads and discs, as well as inspecting the brake hoses for damage.
3. Transmission fluid level check (your question):
- Service B typically includes a visual inspection of the automatic transmission for leaks. - Important: The actual replacement of the transmission fluid (ATF) and filter is a separate procedure performed according to the schedule (usually every 60,000 km or 4 years) and is not included in the standard Service B.
4. Comprehensive Inspection:
- A detailed inspection of the chassis, steering, tires, and all underhood components (belts, hoses) for wear and damage.