2012 Audi P0340: What It Means & Is It Safe to Drive?
P0340 on the 2012 Audi: 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.
PowertrainHigh urgency
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 2012 Audi
- 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 2012 Audi, repairs for P0340 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Audi
Audi EA888 Gen 1 P0340 cam sensor fault is closely related to the timing chain tensioner failure. On Gen 1 engines, P0340 alongside a rattle at startup is an emergency—the timing chain may be about to slip. Stop driving immediately and have the chain and tensioner inspected.
Most commonly affected models
A4 2.0T TFSI B7 2005–2008A3 2.0T 2006–2009TT 2.0T 2006–2010