What does code P1521 mean on Audi vehicles?
An electrical malfunction has been detected in intake manifold changeover valve 2.
OBD-II Code Audi
P1521 — Audi — Intake Manifold Changeover Valve 2 Circuit Electrical Malfunction
An electrical malfunction has been detected in intake manifold changeover valve 2.
Common symptoms
- Check engine light.
Possible causes
- Electrical fault.
Initial recommendation
Inspect valve operation.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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