2015 Audi A4: problems, recalls and what it’s worth
Known weak spot on this generation: 3.0T supercharged / 4.2 FSI — timing chains & water pump.
A cold-start rattle, coolant loss, any misfire codes, and whether a walnut-blast/carbon clean was ever done.
Known problems on the 2015 Audi A4
3.0T supercharged / 4.2 FSI — timing chains & water pump $2,000–$6,000 to fix
If it's the 3.0T supercharged V6 or the 4.2 FSI V8, the timing chains and tensioners live at the back of the engine — a rattle means an engine-out job — and plastic-impeller water pumps fail. Carbon buildup on the intake valves is a given.
Check for: A cold-start rattle, coolant loss, any misfire codes, and whether a walnut-blast/carbon clean was ever done.
Basis: NHTSA complaints; Audi TSBs; well-documented rear-timing-chain concern
Known patterns for this year and model, not findings about one car. A well-kept example may already have had the fix. Costs are rough US shop prices.
2015 Audi A4 recalls
NHTSA lists no recall campaigns for the 2015 Audi A4.
2015 Audi A4 safety investigations and free repairs
No open safety investigations.
Free repairs to ask about (warranty extensions):
- Warranty extension: Removed expiration date, Updated part numbers in parts and claiming sections, General circular updates
- Camera: Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit, camera(s), LIDAR, and/or sensor(s) which enable automatic emergency braking functionality.
- Steering: This Document informs dealers on the new electromechanical steering unit warranty extension for 2012-2015 Model Year Audi B8 (A4, Q5 & SQ5) and C7 (A6) Vehicles
- Turbocharger: This Document informs dealers on the new turbo warranty extension for 2013-2016 A4, 2013-2017 A5/Q5, and 2012-2015 A6 vehicles
A dealer for the brand can check these by VIN.
Source: NHTSA, Sep 24, 2026.
2015 Audi A4 safety and fuel
From NHTSA’s crash tests and the EPA’s fueleconomy.gov.
What owners complain about
44 complaints filed with NHTSA for this year and model, about average.
Share of complaints that mention each area. One complaint can mention several.
Other Audi A4 years
2010 2011 2012 2013 2014 2016 2017 2018 2019 2020 2021 2022 2024
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