Note | Threads of cylinder heads and glow plugs must be clean and dry, free from oil and lubricant. |
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| Clean holes for glow plugs in cylinder head from fixed combustion residues. |
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| Screw ceramic glow plugs into the holes and lightly tighten by hand. |
Note | t
| Observe maximum permissible torque for ceramic glow plugs of 12 Nm (thread clean and dry, free of oil and lubricant). |
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| In case of non compliance there is a risk of breakage of the pin, which can always lead to severe engine damage. |
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| Ceramic glow plugs with recommended socket insert and torque wrench to tightening torque of max. 12 Nm. |
| Inspect the installed ceramic glow plugs before the first engine start: |
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| Connect handheld multimeter, e.g. -V.A.G 1526 B- for resistance measurement between contact and 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 glow plug and check if the pin is not broken off. |
Note | In case of breakage of the ceramic glow plug pin all broken pieces must be removed from the cylinder before starting the engine, otherwise this could result in engine damage due to seizures. If required, the cylinder head must be removed. |
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| Re-connect electrical plug connections for glow plugs. |
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| 1. Interrogating and erasing fault memory of engine control unit. Do not start the engine! |
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| 2. Performing self-diagnosis. |
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| 3. Interrogate the fault memory of the engine control unit again. Do not start the engine! |
Note | The engine must not be started as long as a fault concerning the ceramic glow plugs is stored in the fault memory! |
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| Check electrical wiring and plug connections for glow plugs. |
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