Where is the rear evaporator temperature sensor located on the Mercedes-Benz R350?
3 Answers
The rear evaporator temperature sensor on the Mercedes-Benz R350 is located inside the dashboard, on the evaporator housing. Mercedes-Benz is a world-renowned German automobile brand, founded in 1900 with its headquarters in Stuttgart, and was created by Karl Benz and Gottlieb Daimler. Below is an introduction to Mercedes-Benz cars: 1. Brand Introduction: Mercedes-Benz is a world-class luxury automobile brand, considered one of the most premium car brands globally, renowned for its perfect technical standards, rigorous quality benchmarks, innovative capabilities, and a series of classic coupe models. 2. Founding History: Mercedes-Benz is a world-famous German automobile brand, established in 1900 with its headquarters in Stuttgart, founded by Karl Benz and Gottlieb Daimler. Mercedes-Benz is internationally recognized for its high-quality and high-performance automobile products. In addition to premium luxury cars, Mercedes-Benz is also one of the world's most famous manufacturers of buses and heavy-duty trucks.
I've been driving a Mercedes-Benz R350 for several years and encountered an issue with the rear evaporator temperature sensor's location. It's mounted on the evaporator of the rear air conditioning system, specifically beneath the second-row seats or within the trim panel area on the left side of the trunk. For inspection, you'll need to remove the seat cushion or lift the trunk carpet cover. Near the inlet or outlet of the air conditioning duct, you'll find a small probe device with wires. Once, my AC cooling was intermittent, and I discovered the sensor connector was loose, causing unstable readings. Be careful not to tug the wires to avoid damage. The sensor is discreetly positioned but typically fixed to the evaporator housing, functioning to monitor refrigerant temperature in real-time to prevent icing and adjust airflow. I recommend fellow car owners who aren't familiar with this to seek professional repair services to avoid accidentally disrupting the wiring and causing bigger issues. Regular maintenance should include checking the connector's tightness.
For the rear evaporator temperature sensor of the Mercedes-Benz R350, its location is typically around the fins of the rear air conditioning evaporator, situated in the rear section of the vehicle such as the front sidewall of the trunk or beneath the seat brackets. The sensor is a small probe connected to a wiring harness embedded within the air duct system, aiding in measuring temperature changes during the refrigeration process. Understanding why it's fixed to the evaporator: to prevent frost formation due to low temperatures from affecting air conditioning performance, its compact placement requires removing interior trim covers for direct visibility. The inspection method is straightforward—first use a multimeter to check resistance values for any abnormalities, but ensure the power is disconnected for safe operation before proceeding. If the sensor fails, the air conditioning may suddenly stop working or produce insufficient cooling. It's recommended to promptly replace the component upon detecting any issues to ensure stable system operation.
