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MacBook Pro 17" Models A1151 A1212 A1229 and A1261 Left Thermal Sensor Replacement

The left thermal sensor for Models A1151 and A1212 is the middle thermal sensor for the A1229. Use this guide to replace the middle thermal sensor on a MacBook Pro 17" Model A1229.

This detects the internal temperature of your machine for heat management.

Step 1 Left Thermal Sensor  ¶ 

Peel up the orange Kapton tape covering the left thermal sensor. Use a spudger to pry the left thermal sensor off from the heat sink.

Step 1 Left Thermal Sensor  ¶ 

  • Peel up the orange Kapton tape covering the left thermal sensor.

  • Use a spudger to pry the left thermal sensor off from the heat sink.