Hybrid Golf's Poor Performance Points to Injector Troubles

Been through exactly this with my 2018 Hybrid Golf GTE. The symptoms match what I experienced, poor starting, excessive fuel consumption, and rough idle. The cause was indeed dirty fuel injectors, which created inconsistent fuel spray patterns leading to misfires and emissions problems. The repair involved ultrasonic cleaning of all injectors and replacing two that were beyond salvage. The injector deposits were preventing proper atomization of the gasoline, causing incomplete combustion. This is actually a common issue in hybrid vehicles since they often run shorter engine cycles, allowing more deposit buildup. The repair was significant but not catastrophic. After fixing the injectors, the vehicle immediately returned to normal performance, smooth idle, normal fuel consumption, and proper power delivery. The whole process took about a day at the shop. Regular fuel system cleaning and using high-quality gasoline can help prevent this issue. Without proper maintenance, dirty injectors can eventually cause serious engine damage and reduced fuel economy. Getting it diagnosed and repaired sooner rather than later is definitely worth considering given your symptoms.

Thanks for sharing your experience. Your injector issues sound identical to what I dealt with in my Golf. The symptoms cleared up completely after repair, and engine performance returned to normal. The mechanic also found some minor clogging in the fuel lines which they cleaned out while working on it. Would you mind sharing what the total repair cost was? Also curious if youve experienced any similar issues since the fix? My repair was about 6 months ago and everything is still running smoothly.

Thanks for asking about the repair costs. Yes, I took my Golf to the mechanic and the diagnosis confirmed it was indeed an injection nozzle defect, just as suspected. The total repair came to 515€, which included cleaning the dirty injection valve and related components. Since getting it fixed, the vehicle performance has been perfect with no repeat issues. The engine starts smoothly, fuel consumption is back to normal, and those annoying misfires are completely gone. Regular maintenance and using quality fuel has helped keep things running well. This repair experience really highlighted how critical clean fuel injectors are for optimal engine performance. When these components get dirty or fail, it can seriously impact the whole fuel delivery system. Getting it fixed properly the first time, though a bit costly, was definitely worth avoiding potential long-term engine damage.

After reading the helpful feedback, I finally took my Golf to a new mechanic last week. The diagnosis confirmed faulty injectors, exactly what everyone suggested. The repair bill came to 480€, which included a thorough fuel system cleaning and replacement of two badly clogged injectors. The difference in vehicle performance is remarkable. The engine fires up instantly, idles smoothly, and the sluggish acceleration is completely gone. My gasoline consumption has dropped back to normal levels too. The mechanic showed me the old injectors, they were heavily coated with carbon deposits. It has been a week since the repair and no issues have returned. Really glad I got this sorted before it could cause more serious engine problems. Will definitely be more proactive with fuel system maintenance going forward.