Audi A6 C7 3.0 TDI SCR System Fault — AdBlue
Audi
A6
2014
3.0 TDI V6 Euro 6
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
The SCR AdBlue system on A6 C7 3.0 TDI Euro 6 can develop NOx sensor, pump or injector faults causing system warnings. Full SCR system diagnosis required to identify specific component. Sensor £200-400; injector £300-600.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Audi A6 2014 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
Explore more Audi models
📖 Related Repair Guides
Help other owners by sharing your experience.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.