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p2279
Easy Fix
Volkswagen · Sedans
Intake Air System Leak
Quick Answer
Error code P2279 on your Volkswagen Sedans means: Intake Air System Leak. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
3H3CCID7BUBU-GLI3G3G-GTE3DArteon SE 2024Arteon SEL Premium R-Line 2024ID.7 Pro S 2025ID.7 Pro S Plus 2025Jetta GLI Autobahn 2024Jetta GLI S 2024Jetta S 2024Jetta SE 2024Jetta SEL 2024Jetta Sport 2024
Likely Causes
  1. Cracked or loose intake boot between turbo and throttle body
  2. Failed intake manifold gasket
  3. Torn or disconnected PCV hoses or breather pipes
  4. Leaking diverter valve or bypass valve
  5. Cracked vacuum lines
How to Fix It
1
Perform a visual inspection of all intake piping, boots, and clamps between the turbocharger and throttle body
2
Use a smoke machine to pressurize the intake system and identify the exact leak location
3
Check the PCV valve, breather hoses, and oil separator for cracks or loose connections
4
Inspect the diverter valve (DV) for torn diaphragm or broken housing
5
Tighten all hose clamps on the intake tract and replace any damaged boots or hoses
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Intake boot or turbo inlet pipe
Intake manifold gasket
PCV valve and hoses
Diverter valve
Hose clamps
Related Error Codes
P0171P0300P0420P0411P0441
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