Mercedes-Benz Exhaust Back Pressure Sensor B60 Replacement
DIY Cost: $50-$85
Est. Time: 30 min
Difficulty: Very Easy
This guide provides instructions on how to replace the Exhaust Back Pressure (B60) sensor on ML, C, E, R, Sprinter models. Chassis 164, 203, 204, 207, 209, 211, 212, 218, 219, 221,251, 461, 463 with engine 642.
B60 is found on Mercedes-Benz models with diesel engines, including R-Class, ML-Class, E-Class, Sprinter, and any other model. This guide shows the exhaust back pressure sensor's sensor location and how to replace it on a Mercedes-Benz OM642 engine. This is one of the most commonly used Mercedes-Benz diesel engines, especially in the U.S. market.
Symptoms of a faulty exhaust back pressure sensor include:
Lack of engine power
Pressing the gas pedal has no effect.
Difficulty accelerating, especially uphill or on the highway
It takes a long time for the vehicle to reach 60mph (100 km/h)
The vehicle is stuck in limp mode.
Possible fault codes in the CDI control unit (N3/9).