Removing Primary Catalytic Converter On Left Side

Information 

• The procedure for removing and installing the left primary catalytic converter is essentially the same as for the right side. 
  1. Primary catalytic converter on left side
  2. Bottom holder on transmission housing (PDK)
  3. Bottom holder on transmission housing (manual transmission)
  4. Seal on flange to turbocharger
  5. Top holder on transmission bell housing
  Fig 1: Overview Of Catalytic Converter Components

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1. Remove electric plug-in connectors -1-  from the oxygen sensors.
   Fig 2: Pulling Off Connectors

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2. Check that the oxygen sensor cables are routed correctly → Oxygen sensor cable routing  !
   Fig 3: Identifying Oxygen Sensor Cable Routing

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3. Unclip cable on the left cylinder bank.
4. Raise the vehicle → 4X00IN LIFTING THE VEHICLE .
5. Unclip cable at the transmission housing → Oxygen sensor cable routing  .
6. Pull oxygen sensor cables downwards.
   1. 6.1. Fasten the cables to a suitable cord so that you can pull them up again during installation.
   2. 6.2. Pull the cables down past the high-pressure pump.
7. Loosen clamping sleeves -1-  for the exhaust pipe.
   1. 7.1. Loosen clamping screws -2-  .
   2. 7.2. Slide clamping sleeves towards the rear -arrow-  .
   Fig 4: Loosening Clamps (Diagram)
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8. The procedure for removing the left primary catalytic converter from the holders is the same as for the right side.