
2012 Audi Q7 TDI Premium Plus 3.0L AD Blue Warning
This Audi Q7 is my wife's all time favorite car - it used to get 35 mpg and now after the EPA Emissions modification it still gets 28 mpg highway, but with much diminished engine power compared to before the EPA emission reprogramming. The problem is th...
FIX posted 12/22/2021
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Message Closed w/FIX
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VIN | WA1LMAFE1C |
Engine | 3.0 L / 6 cyl / DIESEL |
Trans | 8-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Ad Blue Warning |
Occurs | Intermittently |
Trouble Codes
P20F4 | Reductant Consumption Too Low |
Message Closed w/FIX
Vehicle Data
2012 Audi Q7 TDI Premium Plus
VIN | WA1LMAFE1C |
Engine | 3.0 L / 6 cyl / DIESEL |
Trans | 8-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Ad Blue Warning |
Occurs | Intermittently |
Trouble Codes
P20F4 | Reductant Consumption Too Low |