2022 Volkswagen P0325: What It Means & Is It Safe to Drive?
P0325 on the 2022 Volkswagen: Knock Sensor 1 Circuit Malfunction (Bank 1). 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 isn't receiving a valid signal from knock sensor 1. Without knock feedback, the PCM retards ignition timing as a safety measure, reducing power and economy.
Common causes on the 2022 Volkswagen
- Failed knock sensor
- Corroded or broken wiring/connector at the sensor
- Actual engine knock from carbon buildup or low-octane fuel
Symptoms
- Check Engine Light
- Reduced power and fuel economy (PCM retards timing)
- Possible audible knock or ping under load
Typical fixes
- Replace knock sensor
- Repair wiring and connector
- Use correct octane fuel and address carbon buildup
Repair cost range
For a 2022 Volkswagen, repairs for P0325 typically fall between $150 and $500, depending on the root cause and labor rates in your area.
Known issues on Volkswagen
VW P0325 on EA888 2.0T TSI engines is usually the knock sensor connector corroding or the sensor itself failing—the sensor is mounted on the engine block and is accessible after removing the intake manifold on most models. On EA888 Gen 1 (2009–2012) with timing chain issues, verify the chain is not stretched before attributing P0325 to the sensor—a stretched chain causes timing irregularities that can stress the knock sensor circuit. On 2.5L five-cylinder (Jetta 2.5, 2005–2014), knock sensor replacement is an intake manifold removal job.
Most commonly affected models