2019 BMW P0340: What It Means & Is It Safe to Drive?
P0340 on the 2019 BMW: Camshaft Position Sensor Circuit Malfunction. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The PCM is not receiving a valid signal from the camshaft position sensor. Affects ignition timing and fuel injection.
Common causes on the 2019 BMW
- Failed camshaft position sensor
- Wiring or connector issue
- Timing chain/belt misalignment (less common)
Symptoms
- Check Engine Light
- No start or hard start
- Rough run, stalling
- Reduced power
Typical fixes
- Replace camshaft position sensor
- Repair wiring/connector
- Verify timing if sensor replacement doesn't fix
Repair cost range
For a 2019 BMW, repairs for P0340 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on BMW
BMW P0340 on N52 and N54 engines often indicates a VANOS solenoid issue rather than a true cam sensor failure. The N52's intake VANOS cam sensor can report erratic signals when the VANOS unit has a slow-responding solenoid from sludge buildup. Check oil service history and VANOS operation before replacing the sensor.
Most commonly affected models