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p2279
Easy Fix
Audi · Sedans
Intake Air System Leak
Quick Answer
Error code P2279 on your Audi Sedans means: Intake Air System Leak. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
8YB9F5C8D5FW
Likely Causes
  1. Cracked or torn intake boot between MAF sensor and throttle body
  2. Loose clamps on the air intake tubing
  3. Deteriorated intake manifold gaskets
  4. Cracked vacuum line connected to the intake system
  5. Faulty PCV system causing unmetered air entry
How to Fix It
1
Visually inspect the intake boot and all connections for visible cracks or gaps
2
Perform a smoke test on the intake system to pinpoint the leak location
3
Check all hose clamps on the intake path for tightness
4
Inspect the PCV valve and breather hoses for deterioration
5
Replace any damaged intake components and clear the code
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
Hose clamps
Intake manifold gasket
PCV valve
Related Error Codes
P0171P0174P0300P0420P0411
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