REPLACING COOLANT TEMPERATURE SWITCH Switch must keep EGR valve shut at coolant temperature below 45°C (113°F). Drain some of coolant. Installation: Bleed cooling system 17 00 039. Disconnect wires. Remove temperature sensor. Refer to 13 60 009 for test data. 17 00 039 * See Specifications | |
Vehicles after change point in 1982 REMOVING AND INSTALLING/CHECKING COOLANT TEMPERATURE SENSOR The temperature sensor measures engine temperature and sends this information to the control unit in the form of a resistance value. The resistance value drops as temperature rises (NTC). 1 = Plug connection 2 = Housing 3 = NTC resistor | |
Removing and Installing: Pull off plug (1). Unscrew temperature sensor. Installation: Tightening torque*. * See Specifications | |
Installation: Check code number (1)*. Replace seal (2). FD = Manufacturing date Fill and bleed cooling system (Group 17). * See Specifications | |
Checking: Connect Jetronic test lead 61 1 440. Check nominal value* with ohmmeter. To check the entire temperature range, remove and place temperature sensor in a water bath heated to testing temperature. Check resistance with an ohmmeter*. * See Specifications |