Fuel Emissions System: Maintenance

Every 12, 500 miles, check fuel cap, tank, and all connections for tightness. Clean air filter ring in charcoal canister.

Fig 1: 320i Fuel Evaporation System

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Fig 2: 528i Fuel Evaporation System (633CSi & 733i Similar)

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Fig 3: 2002 Fuel Evaporation System

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Fig 4: 2002 Fuel Return Valve

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Fig 5: 530I & 3.0SI Fuel Evaporation System

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