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.

By type

By component

By trouble code

By topic

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
011366203145832023-01-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). Under extreme driving conditions, such as a driving profile of mainly short distance (stop and go) driving high crankcase pressure can lead to the above described DTC codes.
011313203435912023-01-03. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. In vehicles produced during a certain period, the AdBlue filter seal within the level sensor module may have been damaged during the assembly process. This damaged seal can allow unfiltered AdBlue to be sucked into the delivery system, subsequently damaging the pressure sensor and reducing agent pump V437.
011258203145812023-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). Under extreme driving conditions, such as a driving profile of mainly short distance (stop and go) driving high crankcase pressure can lead to the above described DTC codes. By changing the crankcase pressure valve to a lower operating pressure this condition can be improved and eliminate the mentioned possible DTC codes. Along with the crankcase pressure being lowered, a new ECM software level is required to compensate for new crankcase pressure.
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.
011366203145832022-10-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). Under extreme driving conditions, such as a driving profile of mainly short distance (stop and go) driving high crankcase pressure can lead to the above described DTC codes.
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.
011366203145832022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ELECTRICAL SYSTEM. Under extreme driving conditions, such as a driving profile of mainly short distance (stop and go) driving high crankcase pressure can lead to the above described DTC codes.
011258203145812022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). Under extreme driving conditions, such as a driving profile of mainly short distance (stop and go) driving high crankcase pressure can lead to the above described DTC codes. By changing the crankcase pressure valve to a lower operating pressure this condition can be improved and eliminate the mentioned possible DTC codes. Along with the crankcase pressure being lowered, a new ECM software level is required to compensate for new crankcase pressure.
2613202026757 22021-12-13. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. An AdBlue message may appear in the instrument cluster either because there is a fault in the
AWA-17-122021-05-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. For Audi 3.0 L TDI Generation 2.1 SUV vehicles repaired by the emissions modification recall, the following warranty extension is applicable. ?Extended Emissions Warranty? Limited Warranty Extension The Limited Warranty Extension is applicable to 3.0L TDI vehicles Generation 2.1 SUV with engine code CNRB.
EmailAUTDI2L-3L2020-10-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Reminders - TDI Approved Emissions Modifications, Emissions Compliant Repairs, corrections and extended warranty / warranty policy and loaner vehicle overview
A1720072060033_12020-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin contains repair instructions for when there are noises in the engine compartment with DTC P052E00.
AWA 19-022019-05-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. This bulletin clarifies how to claim AdBlue on warranty claims.
AWC 18-142019-02-25. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This communication notifies dealers that AWC 17-34 was modified to remove 2.0L vehicles and apply to 3.0L vehicles only.
AWC 17-342019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT. This communication instructs dealers to contact the Technical Assistance Center if they encounter a MIL on before performing the TDI emissions modification. - REVISED 12/17/18 to apply to 3.0L models and to remove 2.0L models.
A011894 20330012019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
Campaign Parts B2018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 3.0L TDI Emissions Recalls 23R8 Part supersession
A011886 2035454-2018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This technical service bulletin contains instructions for pressure washing ports to resolve an "AIR system -- action required" message.
Circular - Emiss2018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 3.0L TDI Engine Emissions System Modification
AWA-18-142018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin provides coding instructions for AdBlue refills after the AEM is performed on Gen 1.2 TDI vehicles.
AWA-18-132018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin explains how to code the "customer delight" elements included with the repair for 3.0L TDI Gen 1.2 vehicles.
AWA-18-122018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin explains the extended emissions warranty for 3.0L TDI Gen 1.2 vehicles.
A231850 2051969-2018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin contains instructions for when there is issues performing Campaign 23V2.
Email-2.0L TDI a2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 2.0L TDI and 3.0L TDI Extended Emissions Warranty On-Board Diagnostic (OBD) System Coverage Questions
A011862 2050329_2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin contains repair instructions for when the MIL is on and there are one of several DTCs stored in the ECM.

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