2010 Audi P0301: What It Means & Is It Safe to Drive?
P0301 on the 2010 Audi: Cylinder 1 Misfire Detected. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainHigh urgency
What this code means
The PCM has detected a misfire specifically on cylinder 1. Similar to P0300, but pinned to a single cylinder.
Common causes on the 2010 Audi
- Worn or fouled spark plug on cylinder 1
- Failing ignition coil or coil-on-plug
- Leaking or clogged fuel injector
- Low compression in cylinder 1
Symptoms
- Check Engine Light (often flashing when misfire is severe)
- Rough idle or shaking, especially at low RPM
- Loss of power under load
Typical fixes
- Replace spark plug and/or coil on cylinder 1
- Test and clean or replace the injector
- Perform compression test and repair internal issues if needed
Repair cost range
For a 2010 Audi, repairs for P0301 typically fall between $150 and $900, depending on the root cause and labor rates in your area.
Known issues on Audi
Audi 2.0T TFSI EA888 P0301 carbon buildup on cylinder 1 intake valve is the most common cause—direct injection means fuel never washes the valves. Walnut blasting intake valves typically resolves it. On EA888 Gen 1 (B7 A4), also check the timing chain tensioner which is a known failure point.
Most commonly affected models
A4 2.0T TFSI B8 2009–2016A4 2.0T TFSI B7 2005–2008Q5 2.0T 2009–2017