What does code P0446 mean on a Volkswagen and is it safe to drive?
P0446: Evaporative Emission System Vent Control Circuit. Here's what it means on your Volkswagen, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
PowertrainLow urgency
What this code means
The PCM has detected a problem with the EVAP vent control circuit, often caused by a stuck or failed vent valve.
Common causes for your Volkswagen
- Failed EVAP vent solenoid
- Corroded wiring or connector at vent valve
- Blocked vent due to dust, rust, or spider webs
Symptoms
- Check Engine Light
- Possible difficulty filling fuel tank (nozzle keeps clicking off)
Typical fixes
- Replace EVAP vent valve/solenoid
- Clean or clear vent and charcoal canister area
- Repair wiring
Repair cost range
For a Volkswagen, repairs for P0446 often fall between $150 and $450, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Volkswagen
VW P0446 EVAP vent control fault typically means the carbon canister vent solenoid (N115) has failed. Test the solenoid with VCDS before replacing. On older VW models, the N115 connector can corrode—cleaning the connector often restores function.
Most commonly affected models
Jetta 2005–2015Golf 2004–2015Passat 2006–2015