P0326moderate severityPowertrain
Knock Sensor 1 Circuit Range/Performance Bank 1
on 2012 Audi A6 3.0L Supercharged V6 · AWD
What this code means
The knock sensor 1 signal is out of expected range.
Symptoms
- Check Engine Light
- Timing retarded
- Reduced power
Common causes
- Sensor damaged
- Incorrect mounting
- Engine mechanical noise
Diagnostic steps
- Test sensor output
- Verify mounting torque
- Check for engine noise issues
Repair notes
Replace knock sensor.
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