WenmarOpen by Wenmar Pro

Service bulletins for the 2012 Audi Q7

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1131 on file from NHTSA, as of 2026-10-19.

About P040B on the 2012 Audi Q7: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

By topic

Only bulletins with trouble code: P040B are shown. Show all

Bulletins, newest first
011466203066522023-01-03. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. 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.
011466203066522022-10-31. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 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.
011466203066522022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 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.
A011466 2030665-2017-12-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Supersedes Technical Service Bulletin Group 26 number 12-13 dated August 31, 2012. The MIL is on. DTCs are stored in the ECM. 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.