2016 Audi P0442: What It Means & Is It Safe to Drive?
P0442 on the 2016 Audi: Evaporative Emission System Leak Detected (Small Leak). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The EVAP system has detected a small leak. Often caused by a loose or faulty gas cap or a small hose leak.
Common causes on the 2016 Audi
- Loose, damaged, or wrong gas cap
- Cracked or disconnected EVAP hose
- Faulty purge or vent valve
- Leaking charcoal canister
Symptoms
- Check Engine Light
- Often no driveability issues
Typical fixes
- Tighten or replace gas cap
- Smoke test EVAP system
- Replace damaged hoses or valves
Repair cost range
For a 2016 Audi, repairs for P0442 typically fall between $15 and $300, depending on the root cause and labor rates in your area.
Known issues on Audi
Audi P0442 on 2.0T TFSI shares VW's N80 purge valve failure pattern. The leak is often tiny—a smoke test is mandatory. Also check the activated charcoal canister hose connections under the vehicle.
Most commonly affected models
A4 2009–2016A6 2012–2016Q5 2013–2017