LEMON Manuals
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2016
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M4 Base, 2D Convertible, Standard Trans
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Self Diagnosis - Diagnostic Trouble Codes (S55)
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Fault Code Tests
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DTC P2237: BMW DTC 12BD52; DME -- O2 Sensor Positive Current Control Circuit/Open (Bank 1 Sensor 1)
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Fault effect and breakdown warning
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Fault effect and breakdown warning
Increased fuel consumption.
Rough engine running.
Increased emission values.