Glow plug filter
| Glow plug filter | 
| To remove | 
| 1. | Remove the cover over the combustion air fan.   
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| 2. | Remove the four control module bolts. | |
| 3. | Carefully extract the control module, unplug the connector and remove the control module from the heater.   | |
| 4. | Remove the centre housing.   | |
| 5. | Undo the nut and remove the glow plug cables.   | |
| 6. | Bend the cables aside. | |
| 7. | Remove the glow plug. | |
| 8. | Open connector B2 and extract the leads for the flame temperature sensor. Use tool 85 80 110. | |
| 9. | Remove the flame temperature sensor. | |
| 10. | Remove the holder (fork) which secures the glow plug holder in position.   | |
| 11. | Extract the glow plug holder with filter. | |
| 12. | Remove the filter. | |
| To fit | 
 
    
    | 1. | Fit the filter. | |
| 2. | Change O-rings and fit the glow plug holder with filter. | |
| 3. | Refit the fork. | |
| 4. | Change the O-ring and fit the glow plug.   | |
| 5. | Connect the cables to the glow plug and tighten the nut. 
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| 6. | Fit the flame temperature sensor. | |
| 7. | Fit the flame temperature sensor's leads in connector B2. 
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| 8. | Fit the centre housing.   | |
| 9. | Plug connector B2 into the control module.   | |
| 10. | Fit the control module.   | |
| 11. | Fit the cover. 
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