There are 1 stored owner reports matching the lighting leading-label group for the 2010 Audi A4 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)TAIL LIGHT (DRIVER'S SIDE) HAS A WATER LEAK PROBLEM. MANY REPORTS OF THIS ON VARIOUS AUDI FORUMS. MAY CAUSE FAILURE OF TAIL, BRAKE, REVERSE LIGHTS OVER TIME. VEHICLE HAS LESS THAN 50,000 MILES. WE ARE THE ORIGINAL OWNERS. NO APPARENT DAMAGE TO LIGHT HOUSING.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.