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| U/J extension and socket, 10 mm -3220- |
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| Detach glow plug connectors from glow plugs. |
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| Clean glow plug opening to make sure no dirt gets into cylinders. |
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| Clean glow plug openings in cylinder head; make sure no dirt gets into cylinder. |
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| Use a vacuum cleaner to remove coarse dirt. |
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| Spray brake cleaner or suitable cleaning agent into glow plug apertures, let it work in briefly, and blow out with compressed air. |
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| Then clean the glow plug openings using a cloth moistened with oil. |
WARNING | Protect eyes against injuries. |
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| Loosen glow plugs using U/J extension and socket, 10 mm -3220-. |
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| Then unscrew glow plugs carefully by hand or using a suitable hose. Keep the glow plugs straight while unscrewing. |
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| Fit glow plugs carefully by hand or using a suitable hose. Keep the glow plugs straight while screwing them back in. |
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| To tighten the glow plugs use special tool U/J extension and socket, 10 mm -3220- with a suitable torque wrench. |
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| Attach glow plug connectors correctly and make sure connectors are securely fitted. |
| The remaining installation steps are carried out in the reverse sequence. |
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