Mercedes-Benz Mercedes B-Class 2011-2018 Drivetrain Specifications

The 2011-2018 Mercedes B-Class drivetrain is compatible with both front-wheel drive (FWD) and all-wheel drive (AWD) configurations, depending on the model variant. The FWD models use a transverse engine layout with a single-speed transmission, while AWD models feature the 4MATIC system with a dual-clutch transmission. The drivetrain supports both gasoline and diesel engines, with torque ratings ranging from 200 Nm to 350 Nm. Always verify the specific model year and engine type for compatibility.

Regular maintenance for the Mercedes B-Class drivetrain includes inspecting and replacing transmission fluid every 40,000 to 60,000 miles, checking the driveshaft and CV joints for wear, and ensuring the 4MATIC system (if equipped) is functioning properly. Lubricate moving parts as needed and monitor for unusual noises or vibrations. Follow the manufacturer’s service schedule for timing belt replacement and other critical components to ensure optimal performance and longevity.

To replace drivetrain components, first, secure the vehicle on a lift and disconnect the battery. Remove the undercarriage shielding and drain the transmission fluid. Detach the driveshaft, CV joints, and transmission mounts. For AWD models, disconnect the 4MATIC system components. Install the new parts in reverse order, ensuring all bolts are torqued to manufacturer specifications. Refill the transmission fluid and test the system for proper operation before driving.

Common drivetrain issues include transmission slipping, unusual noises, and vibration during acceleration. For slipping, check the transmission fluid level and condition. Noises may indicate worn CV joints or driveshaft bearings, which should be inspected and replaced if necessary. Vibration can result from misaligned or damaged components. Use diagnostic tools to identify error codes and consult the service manual for specific troubleshooting steps.

To optimize drivetrain performance, use high-quality transmission fluid and synthetic lubricants. Regularly inspect and replace worn components like CV joints and driveshafts. Ensure the 4MATIC system (if equipped) is calibrated correctly. Avoid aggressive driving to reduce wear and tear. Consider upgrading to performance-grade parts for enhanced durability and efficiency. Always follow the manufacturer’s maintenance guidelines for best results.