Left Exhaust System Tract

Left Exhaust System Tract

Removing

• Engine/transmission assembly removed and mounted on Scissor Lift Platform (VAS 6131 A).

• During installation, reinstall all heat insulation sleeves and heat shields at the same locations.

• All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

- Remove bolts - 2 - and - 3 - and remove oil dipstick guide tube upward - arrow -.





- Loosen hose clamps - 1 - and - 4 - and remove left coolant pipe from coolant hoses.

- Remove electrical connector - 2 - for Heated Oxygen Sensor (HO2S) 3 (G285) (in front of catalytic converter) from bracket and disconnect it.





• Ignore - 1 -.

- Remove right oxygen sensor connection heat shield from transmission - arrows -.





- Remove the following oxygen sensor electrical connectors from bracket on transmission and disconnect them.





1 For Oxygen Sensor (O) 3 Behind Three Way Catalytic Converter (TWO) (G287)
2 For Oxygen Sensor (O) 4 Behind Three Way Catalytic Converter (TWO) (G288)
4 for Heated Oxygen Sensor (HO2S) 4 (G286) (in front of catalytic converter)

- Remove bolt - arrow - at left exhaust tract strap.





- Remove nuts - arrows -.





- Remove nuts in - 9 to 1 - sequence and remove left front exhaust manifold with catalytic converter.





- Remove nuts in - 6 to 1 - sequence and remove left rear exhaust manifold with catalytic converter.





Installing

Installation is in reverse order of removal, note the following:

• Replace gaskets and self-locking nuts.

• Secure all hose connections with hose clamps appropriate for the model.

• During installation, reinstall all heat insulation sleeves and heat shields at the same locations.

• During installation, all cable ties must be re-installed at the same location.

- Position the left rear exhaust manifold and catalytic converter on the cylinder head.





- Tighten the left rear exhaust manifold nuts in three steps in the specified tightening sequence:





- Position the left front exhaust manifold and catalytic converter on the cylinder head.





- Tighten the left front exhaust manifold nuts in three steps in the specified tightening sequence:





- Adjust the exhaust system so that it is free-of-tension after the engine is installed. Refer to => [ Exhaust System, Installing ] Exhaust System, Installing.

Tightening Specifications