P2181 Mercedes-Benz Cooling System Performance
Possible causes
– Low coolant level
– Faulty Engine Coolant Temperature Sensor
– Stuck or leaking thermostat
– Engine Coolant Temperature Sensor harness is open or shorted
– Engine Coolant Temperature Sensor circuit poor electrical connection
– Faulty Engine Coolant Temperature Sensor
– Stuck or leaking thermostat
– Engine Coolant Temperature Sensor harness is open or shorted
– Engine Coolant Temperature Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Mercedes-Benz Vehicle:Mercedes-Benz C-Class,Mercedes-Benz CL-Class,Mercedes-Benz CLK-Class,Mercedes-Benz CLS-Class,Mercedes-Benz E-Class,Mercedes-Benz G-Class,Mercedes-Benz GL-Class,Mercedes-Benz GLK-Class,Mercedes-Benz M-Class,Mercedes-Benz R-Class,Mercedes-Benz S-Class,Mercedes-Benz SL-Class,Mercedes-Benz SLK-Class,Mercedes-Benz SLS-Class,Mercedes-Benz Sprinter 2500,Mercedes-Benz Sprinter 3500,