Removing Exhaust Temperature Sensors

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Hot components

Risk of burns

→ Let hot components cool down.

→ Wear personal protective gear.

Information

Both sensors must be removed when carrying out repairs since the electric lines are combined together in one control unit and cannot be separated.

Information

Specifications for wrench sizes (a/f specifications) for screw heads are described as follows:

Torx screws: (E..) for external Torx, (T..) for internal Torx.
Hexagon-head bolts (internal and external hexagon): Wrench size (a/f)

Remove control unit -1- in the engine compartment at the left.
1. 1.1. Expose electric line for exhaust temperature sensor 1-3 -2- at the top.
  
  Fig 1: Identifying Exhaust Temperature Sensor Connectors And Line
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Expose electric line for exhaust temperature sensor 4-6 at the top.
1. 2.1. Unclip line at the engine carrier -arrows- .
  
  Fig 2: Locating Engine Carrier Spacer Sleeves And Exhaust Temperature Sensor Line
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 2.2. Unclip line at the bottom of the engine.
  
  Fig 3: Identifying Line Routing For Exhaust Temperature Sensor 4-6 At Bottom Of Engine
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Loosen union nuts for the exhaust temperature sensors and pull these out of the turbocharger.
1. 3.1. Cylinder bank 1-3:
  
  Fig 4: Identifying Exhaust Temperature Sensor, Bank 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 3.2. Cylinder bank 4-6: Screw off union nut (M12 x 1, a/f 14) -3- and unclip the line at the holder -1- .
  
  Fig 5: Identifying Oil Return Line From Oil Tank To Turbocharger
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Expose electric line for exhaust temperature sensor 1-3 at the engine.
The retaining clips can be reached easily through the tailpipe opening in the rear apron once the engine is lowered.
1. 4.1. Unclip line at the heat shield and at the holder.
  
  Fig 6: Identifying Exhaust Temperature Sensor Line, Cylinder Bank 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Guide exhaust temperature sensors with lines and connectors (control unit) out of the engine compartment.