VW Eos Diesel Stalling: Rail Pressure Sensor Alert

I went through something very similar with my 2011 VW Passat diesel engine. As someone with moderate experience working on VW diesels, those symptoms match exactly what I experienced, stalling at idle and significant power loss. The rail pressure sensor on the fuel rail was indeed the problem. After the workshop ran diagnostics, they confirmed the pressure sensor was sending incorrect signals to the engine control unit, causing the engine performance issues. The repair took about 2 hours and cost 240€ including parts and labor. Since the fix, the engine has been running perfectly with no more stalling or power issues. Before jumping to conclusions though, could you share: Current mileage on your Eos, Any recent fuel system maintenance, Whether you notice the issues more when the engine is cold or warm, Any diagnostic codes you might have pulled This information would help determine if your case matches what I experienced. While pressure sensors are a common failure point in these diesel engines, its worth checking the entire fuel rail system during diagnosis.

Thanks for sharing the details. My last service was only 1200km ago with a current mileage of 120355km. The issues indeed seem more pronounced when the engine is warm. The workshop pulled code P0193 which confirms the fuel rail pressure sensor signal issue. The symptoms match your experience perfectly with the stalling and power loss. Knowing your repair only took 2 hours and cost 240€ gives me a good reference point. The check engine light started about 2 weeks after my last service. The diesel engine runs especially rough when idling in traffic. The pressure sensor diagnosis makes sense given how the fuel rail system is designed in these engines. Would you mind sharing if they checked any other components in the fuel system during your repair?

Thanks for the follow-up details. In my case with the Passat, the workshop did a thorough check of the entire fuel delivery system while diagnosing the rail pressure sensor issue. They specifically examined: Fuel filter condition, All fuel lines for potential leaks, High pressure pump operation, Injector return flow rates, Electrical connections to the rail pressure sensor The sensor signal fault was definitely the main issue, but checking these other components is crucial since they all work together in the diesel engine fuel system. My mechanic explained that a failing pressure sensor can sometimes mask other developing problems. The timing of your check engine light appearing after service is interesting. In my case, the pressure sensor failed gradually over time. Since your diesel engine symptoms are worse when warm, this matches the behavior I experienced before the repair. With the P0193 code and symptoms matching my experience so closely, the rail pressure sensor is likely your culprit. Just ensure the workshop verifies the fuel system is otherwise healthy during the repair.

Thanks for the comprehensive explanation. Having those additional system checks performed during the repair makes perfect sense. My Eos definitely shows the same pattern with the check engine light and performance issues getting worse in warm conditions. I will schedule the repair next week and request they inspect all those fuel system components you listed. The gradual sensor failure pattern you described matches my situation perfectly. Its reassuring to know the fuel injection system got a thorough inspection in your case, since these diesel engine components are all interconnected. The P0193 code and matching symptoms give me confidence that the rail pressure sensor signal is indeed the root cause. Based on your experience, the 240€ repair cost seems reasonable for the sensor replacement and complete system check. Hopefully mine will run as smoothly as your Passat after the fix. I appreciate the detailed insight about your repair experience. This helps validate what my workshop suggested about the sensor being the likely culprit for the engine stalling and power loss issues.