You are buying a genuine Used Mercedes coolant  Temp Sensor Made by Bosch. Sensor was fully tested and is guaranteed to work as described. will fit the vehicles in the list below. May also have other applications. Refer to pictures and match your numbers before you order or when in doubt please call us, we will be more than glad to answer your questions about this and other parts for your Mercedes FI system. Ask and buy with confidence, I'm a Volvo mechanic with more than 30 years experience. Our Parts and your satisfaction are 100% guaranteed or your money back no questions asked.  this is our policy.                                                                   WILL FIT Mercedes: 190, 260, 300, 560 series                                                  please check the compatibility chart for your specific year and model  We guarantee that all of our products advertised for sale have been tested and are free from defects our products are guaranteed for a period of 6 months from date of purchase. Our guarantee does not cover misapplication of parts where a problem already existed damaging or burning the parts