Front catalytic converter, B207, 4WD
Front catalytic converter, B207, 4WD |
To remove |
1. |
Unplug the connectors for the oxygen sensors (A) and carefully take down the cables.
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2. |
Remove the heat shield (B) over the turbocharger.
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3. |
Remove the upper oxygen sensor (A).
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4. |
Remove the nuts (B) for the catalytic converter connection to the turbocharger.
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5. |
Raise the car.
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6. |
Remove the lower turbocharger delivery pipe (A).
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7. |
Remove
Rear catalytic converter, 4WD
.
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8. |
Remove the lower oxygen sensor (A).
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9. |
Remove the catalytic converter bracket (B) from the engine block and the catalytic converter.
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10. |
Remove the catalytic converter.
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To fit |
1. |
Coat the turbocharger studs with
90 513 210 Universal paste
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2. |
Lift up the catalytic converter, position its bracket the engine block and position the catalytic converter to the turbocharger connection.
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3. |
Insert the catalytic converter bracket bolts (A).
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4. |
Lower the car.
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5. |
Fit the catalytic converter with new nuts (B) so that it lies evenly against the turbocharger.
Tightening torque 25 Nm (18.5 lbf ft) |
6. |
Raise the car.
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7. |
Tighten the catalytic converter bracket bolts (B).
Tightening torque 25 Nm (18.5 lbf ft) |
8. |
Apply a thin coat of
90 513 210 Universal paste
to the threads and fit the lower oxygen sensor (A).
Tightening torque 40 Nm (30 lbf ft).
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9. |
Lift up the oxygen sensor cables.
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10. |
Fit
Rear catalytic converter, 4WD
.
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11. |
Fit the turbocharger pressure pipe (A).
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12. |
Lower the car.
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13. |
Apply a thin coat of
90 513 210 Universal paste
to the threads and fit the upper oxygen sensor (A).
Tightening torque 40 Nm (30 lbf ft). |
14. |
Plug in and secure the oxygen sensor connectors (A).
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15. |
Fit the turbocharger heat shield (B).
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