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P0303 on VOLKSWAGEN PASSAT

Severity
Medium
NHTSA Reports
2
Most Affected
2009, 2015

What P0303 Means on Your VOLKSWAGEN PASSAT

Real VOLKSWAGEN PASSAT Owner Reports (Source: NHTSA Complaints Database)

"There are 3 complaints. i have purchased 2 volkswagen passats in 2009. one is working fine except windshield tank leak, and the other one has the leakage and at the same time an engine problem."

— 2009 VOLKSWAGEN PASSAT owner • ELECTRICAL SYSTEM,ENGINE,VISIBILITY/WIPER • Filed 11/14/2011

"Tl* the contact owns a 2015 volkswagen passat. when the contact started the vehicle, the check engine warning indicator illuminated."

— 2015 VOLKSWAGEN PASSAT owner • ELECTRICAL SYSTEM,VISIBILITY,ENGINE • Filed 09/24/2017

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0303 on VOLKSWAGEN PASSAT

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2009
1
2015
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0303 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026