Audi A4 2009–2011 — technical service bulletin
Bulletin A171554 2027731- · NHTSA communication 10119856 · issued Jan 29, 2015
Technical service bulletin
communication type
Engine
component
2009–2011
model years
8
vehicle entries
Official summary
Engine oil consumption is too high. Under certain driving conditions, internal engine pressure conditions in the 2.0 TFSI engine can negatively influence the rate of oil consumption. Crankcase pressure reduction starting with model year 2012
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.