VW Passat Hybrid: Injection System Troubles & Solutions

A few months ago, I faced nearly identical symptoms with my 2013 VW Golf Hybrid. The performance issues were remarkably similar, rough idle, increased fuel consumption, and inconsistent power delivery. After some basic diagnostics, my workshop confirmed the clogging of two injection valves. They performed a complete injector cleaning service and replacement of one severely damaged injector. The total repair cost came to 515€, which included parts and labor. The repair process was relatively straightforward: Full diagnostic scan, Injector flow testing, Professional cleaning of all injectors, Replacement of the damaged unit, System calibration Post repair, the vehicle ran significantly better with: Smoother idle, Restored fuel efficiency, Normal power delivery, No more cold start issues To provide more specific advice about your diesel injection system, could you share: Current mileage, Service history (particularly fuel system maintenance), Check engine light status, Type of fuel typically used Worth noting that delaying repairs could lead to additional engine damage and more expensive fixes down the line.

Had my latest service at 75000km about 2 months ago. All warning lights are off and I exclusively use premium gasoline from major providers. The repair suggestions sound reasonable, especially since my vehicle symptoms match so closely. Did your workshop mention if the hybrid system complicates the repair process? My main concern is whether the electric components need special handling during injector maintenance. Also curious if they checked emissions values after the repair, as I want to ensure the vehicle stays compliant with current standards. The repair cost seems fair, helps with budgeting. I will schedule a diagnostic check to confirm if the injectors are truly the root cause before proceeding with any major work.

Thanks for the additional details about your service history and fuel usage. Like you, I was initially concerned about hybrid system complications during the injection system repair. In my case, the workshop confirmed the hybrid components did not interfere with the injector maintenance. They followed standard VW protocols for working on hybrid vehicles, which mainly involved properly disconnecting the high-voltage system before starting work on the engine. Regarding emissions, they did perform a complete emissions test post-repair. This was crucial since faulty injectors can significantly impact exhaust values. My results showed: Return to normal emissions levels, Proper fuel-air mixture, No error codes in the engine management system The diagnostic check you mentioned is definitely the right first step. When they tested mine, they found the clogging was causing inconsistent fuel spray patterns, leading to the poor performance and increased fuel consumption. Some preventive tips based on my experience: Continue using quality gasoline, Consider fuel system cleaning additives, Maintain regular service intervals, Address any future injection issues promptly to prevent engine damage The workshop also suggested checking the fuel pressure regulator and fuel lines while doing the injector work, which might be worth discussing during your diagnostic appointment.

Based on your thorough feedback, I understand better how to approach this repair. Pleased to hear the hybrid system doesnt complicate the injector work too much. Vehicle maintenance costs are always a concern, but 515€ for the complete service seems reasonable considering the complexity. Good to know about the emissions testing, thats definitely something I want included after the repair. With current regulations getting stricter, keeping the engine running efficiently and cleanly is crucial. The preventive measures you mentioned make sense, especially since I already use quality gasoline. Will book the diagnostic check next week and ask them to inspect the fuel pressure regulator and lines as suggested. Hopefully catching this early will prevent any serious engine damage. Thanks for sharing your repair experience, really helpful to hear from someone who dealt with such similar injection system issues.