Pressure Sensor Control Line

2008 Audi A3 Base, 2.0 E, Automatic DCTSECTION Pressure Sensor Control Line
WARNING: This page is about a different car, the 2013 Audi A3, 2012 Audi A3, 2011 Audi A3, and 2010 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Removing 

-- Remove engine cover. Refer to ENGINE COVER .

-- Remove the differential pressure sensor -G505- -2-. Refer to DIFFERENTIAL PRESSURE SENSOR -G505- .

Fig 1: Pressure Sensor
GWWA26-10722Courtesy of AUDI OF AMERICA, LLC

-- Remove the heat shield boot and then remove exhaust pressure sensor 1 -G450- -3-. Refer to EXHAUST PRESSURE SENSOR 1 -G450- .

Fig 2: Exhaust Pressure Sensor 1 -G450- -3-
GWWA26-10935Courtesy of AUDI OF AMERICA, LLC

-- Remove the clamp -1-.

-- Remove the noise insulation -1-. Refer to Removal and Installation .

Fig 3: Noise Insulation
GWWA10-10917Courtesy of AUDI OF AMERICA, LLC

-- Remove the clamp -2- and the bolts -1- and then remove the filter.

Fig 4: Identifying Clamp, Nut And Bolt
GWWA26-10925Courtesy of AUDI OF AMERICA, LLC

-- Remove the control line -2- from the exhaust pipe behind the particulate filter.

Fig 5: Exhaust Gas Temperature Sensor 4 -G648- -1-
GWWA26-10937Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -2-.

Fig 6: Particulate Filter Mount And Nuts
GWWA26-10723Courtesy of AUDI OF AMERICA, LLC
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.