Front catalytic converter, B284, 4WD
Front catalytic converter, B284, 4WD |
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To remove |
Important | ||
Always use wing covers when working in the engine bay. |
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1. |
Take the cap off the expansion tank to release any pressure.
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2. |
Remove the upper engine cover and battery cover.
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3. |
Disconnect the negative cable from the battery.
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4. |
Raise the car.
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5. |
Undo the right-hand side of the spoiler shield.
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7. |
Remove
Rear catalytic converter, B284, 4WD.
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8. |
RHD:
Remove
Alternator, B284, 4WD, (RHD)
.
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9. |
LHD:
Remove the right wing liner (A).
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10. |
LHD:
Relieve the load on the belt tensioner and unhook the belt. Use a ½" puller (B).
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11. |
LHD:
Disconnect the electrical connections (A) of the alternator
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12. |
LHD:
Remove the alternator retaining bolts (B). Move the engine to the left slightly if necessary. Move the alternator rearward.
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13. |
Unplug the oil level sensor connector (A) and remove the cable fixing (B).
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14. |
Remove the bracket (C) from the front catalytic converter and oil sump.
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15. |
Lower the car.
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16. |
Remove
Battery cover, bottom, B284
.
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17. |
Detach the hoses (A) from the expansion tank.
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18. |
Move up the tank, unplug the level sensor connector (B) and remove the quick coupling of the coolant hose (C).
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19. |
Remove the heat shield from the turbocharger (A) and catalytic converter (B).
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20. |
LHD:
Remove the brake servo heat shield (C).
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21. |
Remove the turbocharger coolant return pipe (D).
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22. |
Remove the cable duct from the gearbox (E).
Man: Aut: |
23. |
Man:
Lift the cable connections (A) off of the gearbox shifter arm.
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24. |
Man:
Detach the gear cables (B) from the gearbox cable holder.
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25. |
Aut:
Lift the cable connection (A) off of the gearbox shifter arm.
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26. |
Aut:
Detach the gear cable (B) from the gearbox cable holder. Lift up and fasten the gear cable in the coolant reservoir bracket on the bulkhead.
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27. |
Remove the cable holder (C) from the gearbox.
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28. |
Unplug the connector of the rear oxygen sensor (A).
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29. |
Lift up the heat shield (B) and remove the rear oxygen sensor (C). Use
83 96 350 Removal socket, oxygen sensor
.
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30. |
Unplug the connector of the upper oxygen sensor (A) and move up the cable (B).
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31. |
Carefully raise the heat shield slightly. Use
83 96 350 Removal socket, oxygen sensor
when removing the oxygen sensor (C).
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32. |
Position a jack under the gearbox.
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33. |
Mark the position of the bolts and undo the left engine mounting (A). Carefully release the engine down onto the subframe.
Man: Aut: |
34. |
Remove the nuts (A). Lubricate the studs and nuts with rust removal oil.
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35. |
Remove the catalytic converter from the bracket (B) and move it aside.
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36. |
Remove the bracket bolts and nut (C).
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37. |
Carefully coax up the catalytic converter (A) as illustrated.
Position 1 (A1) Position 2 (A2) Position 3 (A3) |
To fit |
1. |
Position the catalytic converter.
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2. |
Fit the bracket bolts and nut (C).
Tightening torque 42 Nm (31 lbf ft) |
3. |
Insert the lower bolt (B) in the bracket.
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4. |
Fit the flange using new nuts (A). Coat the studs with
90 513 210 Universal paste
. Tighten the nuts alternatingly.
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5. |
Tighten the bolt (B) in the bracket.
Tightening torque, nuts: 25 Nm (18 lbf ft) Tightening torque, bolt 19 Nm (14 lbf ft) |
6. |
Raise the engine with the jack and mount the left engine mounting (A) following the mark.
Tightening torque 80 Nm (59 lbf ft). Man: Aut: |
7. |
Remove the jack.
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8. |
Fit the upper oxygen sensor (C).
Tightening torque 45 Nm (33 lbf ft). |
9. |
Secure the cable (B) and plug in the connector (A).
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10. |
Fit the rear oxygen sensor (C).
Tightening torque 45 Nm (33 lbf ft). |
11. |
Plug in the connector of the rear oxygen sensor (A).
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12. |
Fit the cable holder (C) to the gearbox.
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13. |
Man
: Fit the gear cables (B) to the cable holder and attach them to the shifter arms (A).
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14. |
Aut:
Fit the gear cable (B) to the cable holder and attach it to the shifter arm (A).
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15. |
Fit the cable duct to the gearbox (E).
Man: Aut: |
16. |
Fit the turbocharger coolant return pipe (D). Fit the banjo screw using new gaskets.
Tightening torque 30 Nm (22 lbf ft) |
17. |
LHD:
Fit the brake servo heat shield (C).
Tightening torque 8 Nm (6 lbf ft) |
18. |
Fit the heat shields to the catalytic converter (B) and turbocharger (A).
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19. |
Fit the quick coupling (C) of the coolant hose and plug in the level sensor connector (B). Press the coolant reservoir into the bracket on the bulkhead.
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20. |
Attach the hoses (A) to the expansion tank.
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21. |
Fit
Battery cover, bottom, B284
.
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22. |
Raise the car.
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23. |
Fit the bracket (C) to the front catalytic converter and oil sump.
Tightening torque to oil sump: 23 Nm (17 lbf ft) Tightening torque to exhaust pipe flange: 40 Nm (30 lbf ft) |
24. |
Mount the cable fixing (B) and plug in the oil level sensor connector (A).
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25. |
RHD:
Fit
Alternator, B284, 4WD, (RHD)
.
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26. |
LHD:
Fit the alternator retaining bolts (B). Carefully move the engine to the left slightly if necessary.
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27. |
LHD:
Connect the electrical connections (A) of the alternator.
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28. |
LHD:
Relieve the load on the belt tensioner with a ½" puller (B) and fit the belt.
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29. |
LHD:
Fit the right wing liner (A).
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30. |
Fit
Rear catalytic converter, B284, 4WD
.
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31. |
Lower the car.
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32. |
Fit the battery negative cable.
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33. |
Carry out
Cooling system pressure testing
and
Bleeding and charging the cooling system, B284
.
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34. |
Fit the upper engine cover and battery cover.
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35. |
Carry out
Procedures after reconnecting the battery
.
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