After you remove the splash panel under the engine you get access to a Hex bolt which retains the AIM (Air Intake Manifold) to the EGR tube. Unscrew the Hex bolt and then remove the remaining bolts (visible from the top) which keep the AIM attached to the engine. To remove it twist it sliglithly from front to back. Once off you have access to the glow plugs. After you're done clean oily build-up inside the AIM and aslo replace the oring for the EGR tube and the AIM to engine gasket. Good luck. PAT

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pat201