Catalytic converter
Catalytic converter |
To remove |
1. |
Unplug the connector for the oxygen sensors and carefully lower the cables.
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2. |
Remove the heat shield over the turbocharger.
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3. |
Remove the upper oxygen sensor.
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4. |
Remove the nuts for the catalytic converter connection with the turbocharger.
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5. |
Raise the car.
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6. |
Remove the front spoiler shield
.
CV:
Remove
Chassis reinforcement, front supporting frame, CV
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7. |
Remove the lower turbocharger pressure pipe.
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8. |
Cut the front pipe at the silencer (87mm from end of silencer). Use
83 95 667 Pipe cutter/exhaust system
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9. |
Detach the front pipe from the catalytic converter.
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10. |
Remove the heat shield over the steering gear.
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11. |
Remove the heat shield over the catalytic converter.
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12. |
Remove the lower oxygen sensor.
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13. |
Remove the catalytic converter fixing from the engine block and from the catalytic converter.
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14. |
Remove the catalytic converter.
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To fit |
1. |
Lubricate the turbocharger studs with
30 20 971 Screw-thread paste
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2. |
Lift up the catalytic converter, position its bracket to the studs on the engine block and position the catalytic converter to the turbocharger connection.
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3. |
Insert the catalytic converter bracket bolts into the engine block and new nuts on the studs.
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4. |
Lower the car.
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5. |
Fit the catalytic converter with new nuts so that it rests evenly against the turbo.
Tightening torque 25 Nm (18.5 lbf ft) |
6. |
Raise the car.
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7. |
Tighten the catalytic converter nuts and bolts a last time.
Tightening torque 25 Nm (18.5 lbf ft) |
8. |
Lubricate the threads sparingly with
30 20 971 Screw-thread paste
and fit the lower oxygen sensor.
Tightening torque 40 Nm (30 lbf ft).
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9. |
Lift up the oxygen sensor cables.
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10. |
Fit the heat shield over the catalytic converter.
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11. |
Fit the heat shield over the steering gear.
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12. |
Clean the joint at the catalytic converter and the pipe connections to the front silencer, fit the joint clamps.
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13. |
Mount the joint clamp and fit the front pipe with a new gasket, new nuts and rubber mountings. Lubricate the studs with
30 20 971 Screw-thread paste
.
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14. |
Move over the joint clamp so that the pipe ends are in the middle of the clamp.
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15. |
Tighten the joint with the catalytic converter.
Tightening torque 25 Nm (18.5 lbf ft) |
16. |
Tighten the joint clamp nuts.
Tightening torque 40 Nm (30 lbf ft). |
17. |
Fit the turbocharger delivery pipe.
CV:
Fit
Chassis reinforcement, front supporting frame, CV
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18. |
Lower the car.
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19. |
Lubricate the threads sparingly with
30 20 971 Screw-thread paste
and fit the upper oxygen sensor.
Tightening torque 40 Nm (30 lbf ft). |
20. |
Plug in and secure the oxygen sensor connectors.
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21. |
Fit the turbocharger heat shield.
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