Removing turbocharger, cylinder row 1 - 4

Fig 1: Connections

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1. Remove hose line from the vacuum unit of the bypass valve → Connections . Where hose is tight, carefully lever off with a screwdriver. Then pull off the control pressure line from the turbocharger. To do so, carefully insert a small screwdriver in the metal ring so as to open it → Diagram shows opening of the circlip . See Fig 1 and Fig 2.

Fig 2: Diagram shows opening of the circlip

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Fig 3: Coolant supply line

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2. Remove coolant supply line. For this, open the spring band clamp on the coolant line above the coolant distribution pipe and remove it.

Fig 4: Felt-tipped pen markings

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3. The position of all clamps should be marked by means of a felt tip pen prior to any further assembly.

Fig 5: Clamps

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4. Release the 4 clamps on the coolant supply line.

Fig 6: Sheetmetal holder on oil supply line

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5. Release the sheetmetal holder on oil supply line. To do this, loosen the fastening nut (M6).

Fig 7: Oil supply line

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6. Release the oil supply line on the camshaft housing.

Fig 8: Vent line to oil collection container

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7. Release vent line on the oil collection container and place this on one side.

Fig 9: Coolant return line

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8. Separate the coolant return line next to the generator. To do this, remove the spring band clamp and pull off the rubber line. Then release the fastening screw on the holding clamp.

Fig 10: Oil return line

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9. Release the oil return line on the oil-filter console.

Fig 11: Turbocharger mount

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10. Remove turbocharger mount. To do this, loosen two upper fastening screws. Then unscrew the lower screw and remove the support.

Fig 12: Turbocharger fastening screws

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NOTE:

When removing the turbocharger note the connection points of the lines.
If the two lines that are screwed on the turbocharger need to be released, their position must be marked prior to these being released. During installation, the lines must be stress-free and must not be bent.

11. Remove the turbocharger. To do so, undo the 3 fastening screws and remove the turbocharger.