There are 1 owner-reported engine complaints for the 2014 Audi S4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026