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BMW
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2001
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525i Sedan (E39) L6-2.5L (M54)
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Repair and Diagnosis
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Maintenance
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Service Intervals
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Normal Service
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100000 MI or 160000 KM
100000 MI or 160000 KM
Replace
Spark Plug
BMW Spark Plug Replacement, required at intervals of 100,000 mi.
Oxygen Sensor
BMW Oxygen Sensor Replacement, required at intervals of 100,000mi