300CD (123.153) L5-3.0L DSL Turbo (617.952) (1982)
Fuel Filter: Service and Repair
Replacing Fuel Filter
Replacing Fuel Filter
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Loosen mounting screw (74) and remove housing with filter element (42) in downward direction.
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Install new filter element with housing (42) and seals (76 & 77).
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Bleed fuel system.
Bleeding Fuel Filter:
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Loosen hollow bolt (3).
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Using hand pump (1), pump manually until fuel flows out free of bubbles.
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Retighten hollow bolt.
Bleeding Injection Pump:
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Using hand pump (1), pump manually until overflow valve on injection pump opens with an audible buzzing sound.
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Run engine and check for leaks.