Audi A6 Stalling: Bad Camshaft Sensor Warning Signs

Had similar symptoms with an Audi A4 2003 gasoline. The check engine light triggered multiple fault codes during sensor testing. After thorough diagnosis, it turned out the camshaft sensor was failing due to a damaged encoder wheel. The symptoms matched exactly, rough starts, stalling at idle, and inconsistent ignition timing. This is a known issue that requires attention since the camshaft sensor controls crucial engine timing functions. The repair involved replacing both the sensor and the encoder wheel. The job needs precision as incorrect installation can lead to more serious engine timing issues. The repair was significant but not among the most expensive Audi fixes. A professional mechanic with proper diagnostic tools will first verify if the camshaft sensor failure is causing these symptoms through specific testing procedures. Its worth finding a shop specializing in VW/Audi, as they will have the right diagnostic equipment and experience with this common issue. If left unaddressed, sensor failure can potentially cause more expensive engine damage. Definitely recommend getting it checked by a qualified technician rather than continuing to drive with these symptoms.

Thanks for sharing your experience. I had the exact same issue with my A6 last year, stalling, check engine light, and rough starts pointed to a failing camshaft position sensor. Would you remember roughly how much you ended up paying for the complete fix? Just wondering if prices have changed much since then. Also curious if you had any repeat problems after the repair was done? My sensor has been working fine since replacement, but its always good to know what to watch out for.

Thanks for asking about the costs. Just had this exact repair done on my A4 last month, so the numbers are fresh in my mind. The total came to 695 Euro for fixing the faulty encoder wheel on the camshafts, which was causing the sensor issues. Since the repair, the check engine light has stayed off and all those annoying symptoms, the stalling, rough starts, and ignition timing problems, have completely disappeared. The camshaft position sensor is now working perfectly, and engine control functions are back to normal. The repair turned out to be exactly what was needed. Worth every cent considering how smooth the car runs now. Its been about a month of daily driving with zero issues. If the sensor testing was done correctly and the encoder wheel was replaced properly, you shouldnt see these problems return. From what I understand, these components typically last quite a while once fixed, especially if installed by a qualified technician using proper diagnostic equipment.

Just wanted to update how everything turned out with my A6. After gathering advice here, I found a certified Audi specialist who really knew their stuff. The check engine light problem was exactly what I suspected, a faulty camshaft position sensor causing the car to stall. The diagnostic process was thorough, with proper sensor testing confirming the issue. Total repair cost came to 580 Euro, which included parts and labor. They replaced both the sensor and did some preventive work on the wiring harness. The difference is night and day. No more stalling at idle, starts perfectly every time, and the check engine light has stayed off. Really glad I did my research and found a qualified shop instead of going back to my previous mechanic. The whole repair took about 4 hours, and they even showed me the worn-out parts they replaced. For anyone facing similar symptoms, definitely worth getting it checked by someone who knows what theyre doing. The peace of mind from a proper repair is worth the investment.