What does code P1508 mean on Audi vehicles?
The learned idle value has reached the upper limit.
OBD-II Code Audi
P1508 — Audi — Idle System Learned Value Upper Limit Attained
The learned idle value has reached the upper limit.
Common symptoms
- High idle speed.
Possible causes
- Air leaks.
Initial recommendation
Inspect intake system.
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.
Analyze this code with MecaOBD
Use the app to combine Audi code P1508 with your vehicle's actual symptoms for more complete diagnostic guidance.
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