CVT Line Pressure Control Performance
2014-2021 BMW i3 Range Extender
Description
The CVT line pressure is not within the expected range for the current operating conditions. Line pressure controls clamping force on the belt/chain.
Symptoms
- Check Engine Light
- CVT belt slip
- Shudder during acceleration
- Delayed engagement
- Unusual transmission noise
- Overheating transmission
Common Causes
- Faulty line pressure solenoid
- Worn oil pump
- Clogged CVT fluid filter
- Low fluid level
- Internal seal leak
Diagnostic Steps
- Check CVT fluid level and condition
- Monitor line pressure PID on scan tool
- Test pressure control solenoid
- Inspect CVT fluid filter
- Check for internal leaks with pressure test
Repair Notes
Replace line pressure solenoid. If oil pump is weak, transmission rebuild may be required.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P3023 on Other Vehicles
Common Questions
What does code P3023 mean on a 2014-2021 BMW i3?
P3023 stands for "CVT Line Pressure Control Performance". The CVT line pressure is not within the expected range for the current operating conditions. Line pressure controls clamping force on the belt/chain.
What are the symptoms of P3023 on a BMW i3?
Common symptoms of P3023 include: Check Engine Light, CVT belt slip, Shudder during acceleration, Delayed engagement, Unusual transmission noise, Overheating transmission.
What causes P3023 on a 2014-2021 BMW i3?
Common causes of P3023 include: Faulty line pressure solenoid, Worn oil pump, Clogged CVT fluid filter, Low fluid level, Internal seal leak.