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VW Passat & Audi A4 1990-2000 Engine Coolant Temperature Sensor Repair Guide

Access our free Engine Coolant Temperature Sensor Repair Guide for VW Passat & Audi A4 1990-2000 through AutoZone Rewards. These diagrams include:

  • Fig. Beginning with model year 1994, the Engine Coolant Temperature Sensors combined the sensors for the ECM and the gauge into one sensor-1997 2.8L V6 sensor shown
  • Fig. The electrical connector for the combined temperature sensors is keyed to avoid improperly connecting the sensor’s wiring-1997 2.8L V6 connector shown
  • Fig. The Engine Coolant Temperature (ECT) sensor resistance decreases as the coolant temperature increases as shown in this graph of the ECM coolant sensor
  • Fig. When the sensor was placed in a cup of ice water, the resistance increased instantly
  • Fig. This Craftsman® 3/8 inch drive thin-walled, 12-point, deep-well socket can be used for removing a threaded coolant sensor
  • Fig. The Craftsman® socket slides over the sensor without risking damage to the electrical connector housing

VW Passat & Audi A4 1990-2000 Engine Coolant Temperature Sensor Repair Guide

Access our VW Passat & Audi A4 1990-2000 Engine Coolant Temperature Sensor Repair Guide by creating an account or signing into your AutoZone Rewards account. Once you sign in, follow these instructions to access our Repair Guides.

  • Add your vehicle in My Vehicles.
  • Enter your vehicle details.
  • Click the “View More” button, and then click “Vehicle Repair Guides.”
  • Select “Chassis Electrical” in the Table of Contents.
  • Select the chapter “Engine Coolant Temperature Sensor Repair Guide”.

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