What does a B service consist of on a 2005 ML350 with 49000 miles?

A B service for a 2005 ML350 typically includes an oil change, replacement of the oil filter, and a thorough inspection of key components such as brakes, tires, and fluid levels. Additionally, it often involves replacing the cabin air filter and checking the battery, wiper blades, and lights. Other checks may include the brake fluid, coolant, and Transmission Fluid levels to ensure optimal vehicle performance. Always refer to the owner's manual for specific recommendations.