# Service bulletin 01146620306652

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.

- Type: Service bulletin
- NHTSA id: 10222048
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 01146620306652
- Manufacturer's date: 2014\-02\-16
- NHTSA component: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10222048-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10222048-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Exhaust and emissions, Fuel system

## Trouble codes named

P040B, P310E

## Vehicles listed

- 2012 AUDI Q7

## Recalls for the same vehicles and component

- [2018635](/recalls/tc/2018635.md), 2018-11-19: Fuel System
- [18V818000](/recalls/nhtsa/18V818000.md), 2018-11-19: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [16V660000](/recalls/nhtsa/16V660000.md), 2016-09-13: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2016443](/recalls/tc/2016443.md), 2016-09-09: Fuel System
- [15V019000](/recalls/nhtsa/15V019000.md), 2015-01-20: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL
- [2015018](/recalls/tc/2015018.md), 2015-01-16: Fuel System

## Other bulletins for the same vehicles and component

- [TSB\_2082323\_1](/bulletins/11034728.md), 2026-07-07, Service bulletin: ENGINE. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- [TSB\_2021205\_10](/bulletins/11029367.md), 2026-03-03, Service bulletin: ENGINE. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
- [TSB\_2060750\_5](/bulletins/11028398.md), 2026-02-06, Service bulletin: ENGINE. This bulletin provides information regarding UV leak additive for finding oil leaks.
- [TSB\_2042920\_2](/bulletins/11020367.md), 2025-07-08, Service bulletin: FUEL/PROPULSION SYSTEM. This bulletin provides information when there is corrosion on the exhaust tail pipes.
- [TSB\_2075530\_2](/bulletins/11016532.md), 2025-04-04, Service bulletin: ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
- [A0124482014753\_13](/bulletins/11012476.md), 2025-01-07, Service bulletin: ENGINE. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
- [A1524532075530\_1](/bulletins/11009928.md), 2024-11-06, Service bulletin: ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
- [A2424632074810\_2](/bulletins/11009327.md), 2024-10-28, Service bulletin: ENGINE. This bulletin provides information when ther is an Engine: start/stop system fault shown and start/stop system not is working; mileage below 50 km/32 miles.
- [A0024902074853\_1](/bulletins/11007297.md), 2024-09-06, Service bulletin: FUEL/PROPULSION SYSTEM. This bulletin provides service information ror when the fuel tank cannot be fully filled.
- [A0024902074853\_1](/bulletins/11007216.md), 2024-09-06, Service bulletin: FUEL/PROPULSION SYSTEM. This bulletin provides service information ror when the fuel tank cannot be fully filled.

JSON: [/v1/bulletins/10222048](/v1/bulletins/10222048)

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