2013 BMW P0300: What It Means & Is It Safe to Drive?
P0300 on the 2013 BMW: Random/Multiple Cylinder Misfire Detected. 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 has detected misfires across multiple cylinders. This can cause damage to the catalytic converter if driven for long.
Common causes on the 2013 BMW
- Worn spark plugs or ignition coils
- Clogged or bad fuel injectors
- Low compression
- Vacuum leak, bad MAF, or fuel delivery issue
Symptoms
- Check Engine Light (often flashing under load)
- Rough idle, shaking, loss of power
- Possible smell of unburned fuel
Typical fixes
- Replace spark plugs and coils as needed
- Clean or replace fuel injectors
- Fix vacuum/fuel issues
- Compression test if no obvious cause
Repair cost range
For a 2013 BMW, repairs for P0300 typically fall between $150 and $1200, depending on the root cause and labor rates in your area.
Known issues on BMW
BMW P0300 on N54 twin-turbo engines is frequently caused by HPFP (High Pressure Fuel Pump) cavitation—the original Bosch HPFP has a known failure mode that reduces fuel rail pressure and causes misfires across all cylinders at idle. BMW extended the warranty on N54 HPFP to 10 years/120k miles. On N20 four-cylinder, timing chain stretch causes variable camshaft timing errors that result in P0300. On N52 inline-six, CCV (crankcase vent) valve failure causing rich/lean swings leads to P0300 on cold starts.
Most commonly affected models