Removing Exhaust Temperature Sensor

Information 

• The thread of the exhaust temperature sensor can be screwed in again a maximum of five times. 
• Use the Porsche high-temperature grease (part number 000.043.207.07) to grease the thread. 

→ Let hot components cool down.

→ Wear personal protective gear.

1. Remove exhaust temperature sensors on the turbocharger.
   1. 1.1. Loosen and unscrew cap screws -1 and 3-  for the exhaust temperature sensors on the turbochargers.
   2. 1.2. Unclip lines for sensors from the brackets -2 and 4-  .
   3. 1.3. Unclip exhaust temperature sensor line on side 4-6 from the heat shield.
      Fig 1: Identifying Exhaust Temperature Sensors

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Check thread of cap screws for damage.
3. Uncover sensor lines in the engine compartment.
   1. 3.1. Unclip lines on side 1-3 -1 and 2-  from the holder on the engine carrier.
   2. 3.2. Guide exhaust temperature sensors upwards into the engine compartment.
   3. 3.3. Unclip exhaust temperature sensor line on side 4-6  at the cable duct and uncover as far as the control unit.
   4. 3.4. Unclip exhaust temperature sensor line on side 1-3  and guide through to the control unit.

      A piece of wire can be used as an aid to make it easier to install the lines. Attach a piece of wire to the line and guide it through.

   Fig 2: Unclipping Sensor Lines

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Remove control unit.
   1. 4.1. Pull cable plugs -2 and 3-  out of the bracket -1-  and disconnect plug connections -2, 3 and 4-  .
      Fig 3: Disconnecting/Connecting Exhaust Temperature Sensor Control Unit

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 4.2. Release exhaust temperature sensor control unit -1-  by pressing the retaining lugs -2-  and pull it up in -direction of arrow-  .
      Fig 4: Removing Control Unit For Exhaust Temperature Sensor

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 4.3. Remove exhaust temperature sensor control unit with the lines.