Note | The threads in the cylinder head and of the ceramic pencil type glow plugs must be clean and dry, free from oil and lubricant. |
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| Eliminate fixed combustion residues in the holes for the ceramic pencil type glow plugs in the cylinder head. |
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| Screw ceramic pencil type glow plugs into the holes and tighten by hand. |
Caution | t
| The maximum permissible tightening torque for ceramic pencil type glow plugs is 12 Nm and must not be exceeded (thread clean and dry, free of oil and lubricant). |
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| If this is not observed there is a risk of fracture of the pin, which can always lead to severe engine damage. |
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| Tighten the ceramic pencil type glow plugs with the recommended socket insert and with a torque wrench of 12 Nm. |
| Check the state of the installed ceramic pencil type glow plugs as follows: |
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| Connect handheld multimeter for resistance measurement between contact and ceramic pencil type glow plug housing. |
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| Specified value: less than 1 Ω |
| If the specified value is exceeded (greater than 1 Ω): |
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| Remove ceramic pencil type glow plug and check for fracture of the pin. |
Caution | If the faulty ceramic pencil type glow plug is broken, all broken pieces must be removed from the cylinder before starting the engine, otherwise this could result in a major engine damage. If required, the cylinder head must be removed. |
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| Fit the connector onto the ceramic pencil type glow plugs. |
Caution | The engine must not be started as long as a fault concerning the ceramic pencil type glow plugs is stored in the fault memory! |
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| Check electrical wiring and plug connections for ceramic pencil type glow plugs. |
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