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BMW TSB #B160420
2020 BMW X3
TSB Document:
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- ?TANK VENTILATION DIAGNOSIS: There is software error in the diagnosis of the fuel tank ventilation valve. This error may result in the Service Engine Soon (MIL) light not being activated if a fault is found in the tank vent system after a second fault detection. This error will also disable diagnosis of the catalytic converter and oxygen sensor (if a fault is detected in the tank vent system).
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