Audi A7 Reset Quantity Drift Fix and Cost Guide

Had similar issues with my A6 2014 3.0 TDI. The Reset Quantity Drift error often points to faulty fuel injectors, which was exactly my case. After performing a system reset and running diagnostics, the mechanic confirmed two injectors were defective. The repair required: Full diagnostic scan, Injector removal and testing, Replacement of defective injectors, Reset of the injection control module, Clearing all fault codes, Performance tuning to ensure proper calibration This was a serious repair job that required specialized equipment to test and code the new injectors. The car sensors needed precise calibration after installation. The symptoms match yours, rough running and persistent check engine light. Important: Continuing to drive with faulty injectors can cause: Poor fuel economy, Engine misfires, Potential damage to other components, Failed emissions tests The airflow sensors and other related systems need checking too, as they can contribute to injection problems. Would recommend getting this addressed soon to prevent additional engine damage.

Since we had similar injection issues, I completely understand what youre going through. My repair turned out well in the end, but it took a specific compensation adjustment for the new injectors to work properly. The main issue was getting everything calibrated correctly after the system reset. Would you mind sharing what the final cost was for your repair? My bill came to around 1600 Euro including parts and labor. Just wondering if prices have changed much since then. Also curious if youve experienced any other fuel economy or performance issues after getting it fixed? Mine has been running smoothly for about 8 months now, but I keep a close eye on the diagnostics just in case.

Thanks for asking about the costs. I just got my A6 back from the shop last week, and the total came to 515 Euro for fixing the defective injection valve. The compensation adjustment and system reset completely resolved the drift compensation error, which was a relief. The repair price included: Complete diagnostic testing, Injector replacement, System recalibration, Performance tuning The mechanic did a thorough job ensuring all airflow sensors were working correctly after the repair. Since the fix, fuel economy has returned to normal and the engine runs smoothly with no error codes. The key was getting the proper drift compensation settings after installing the new injector. Your experience of paying 1600 Euro sounds like you might have needed multiple injectors replaced. Prices for parts do fluctuate, but a single injector repair typically falls in the 450-600 Euro range when properly diagnosed.

After dealing with my rough-running engine issue, I finally got it sorted at a new mechanic who really knew their stuff. The whole ordeal took about 4 days but was worth the wait. They found two faulty injectors that needed replacement. The compensation adjustment was critical, the mechanic spent extra time fine-tuning the calibration after the reset procedure to get everything working perfectly. The performance tuning made a noticeable difference in how the car runs. The total cost came to 1600 Euro, which included: Two new injectors, Labor for removal and installation, System diagnostics, Calibration work The fuel economy is back to normal and the engine runs smoothly again. Been monitoring it closely for the past 8 months with no issues. The check engine light hasnt returned since. For anyone facing similar problems, I recommend finding a shop that specializes in injection systems. Getting the right diagnosis and proper calibration makes all the difference in fixing these issues permanently.