Audi Q7 2012 — technical service bulletin
Bulletin 01146620306652 · NHTSA communication 10225075 · issued Feb 16, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012
model years
1
vehicle entries
Official summary
The quality of the auxiliary exhaust gas recirculation (EGR) cooler modules manufactured within a certain timeframe may be inadequate. The vacuum actuator diaphragm may have leaks. A faulty auxiliary EGR cooler will trigger a P310E fault. Faulty operation of the auxiliary EGR cooler can also trigger the P040B fault, but there is no issue with the temperature sensor.
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.