P0101 on Your 2020 BMW i3
The i3 is BMW's innovative electric vehicle. P0101 only applies to models equipped with the Range Extender (REx) option - a small gasoline engine for extended range. Pure electric i3 models have no MAF sensor.
Range Extender Considerations
- Only REx models have a MAF sensor
- The small 2-cylinder engine requires air metering
- P0101 affects Range Extender operation
- Electric drive is unaffected
Symptoms if Equipped with REx
- Check engine light for REx system
- Reduced Range Extender efficiency
- REx may not engage properly
- Warning messages in iDrive
Diagnostic Approach
If your i3 has the Range Extender, MAF diagnosis follows standard principles. Use BMW i-specific diagnostics for accurate analysis.
Pure Electric i3
If you have a pure electric i3 without Range Extender, P0101 is not applicable. Any codes would be related to the electric powertrain.