There are 2 stored owner reports matching the fuel system leading-label group for the 2009 Audi A5 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)AUDI A5 2009 IS NOT A RELIABLE CAR I WILL NEVER BUY ANOTHER AUDI PRODUCT IN MY LIFETIME. I CANT BELIEVE HOW I THOUGHT I WAS ALONE WITH THE MISFIRE ISSUE AND I FIND IN MY RESEARCH THERE ARE MANY OTHERS WITH THE SAME ISSUES FOR VARIOUS MODELS UNBELIEVABLE. HAD I SEARCH THIS PRODUCT, WOULD HAVE BEEN MY ONLY WISH. THE CAR WOULDN'T EVEN START UP TODAY. HAD THIS CAR FOR ONLY 8 MONTHS. AT 45,000...
AUDI A5 3.0L DIESEL QUATTRO EXPERIENCED TOTAL LOSS OF POWER. LUCKILY HAD JUST COME TO A HALT. ENGINE WILL NOT RESTART. TURNS OUT THE FAILURE OF MAIN THE MAIN DIESEL PUMP DESTROYED ENTIRE FUEL LINE SYSTEM! AUDI QUOTED 13,000K REPLACEMENT COST TO CHANGE ALL 3 PUMPS, ALL 6 INJECTORS AND CLEAN FUEL TANK! I AM SHOCKED. AUDI DEALER SAID QUITE A FEW CASES HAVE OCCURRED WITH THE EXACT SAME PROBLEM! VERY DISAPPOINTED THAT NOTHING HAS BEEN DONE ABOUT THIS KNOWN ISSUE. *TR
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.