VW Stalling: Likely Fuel Pump Failure Symptoms

As a 2012 VW Golf owner, I faced nearly identical symptoms last season. The automotive diagnosis revealed corroded electrical connections at the fuel pump assembly, not a complete pump failure as initially suspected. The car performance symptoms match exactly: Rough idle and stalling, Starting problems, Increased fuel consumption, Check engine light The root cause turned out to be moisture damage affecting the wiring harness connecting to the fuel pump. Car mechanics found that cleaning and resealing the connections resolved the issues completely. The repair involved: Dropping the fuel tank, Cleaning connection points, Replacing damaged wiring segments, Applying dielectric grease, Installing new weatherproof connectors This was classified as a serious repair due to fuel system involvement and safety implications. The symptoms you describe strongly suggest checking the fuel pump electrical connections before replacing the entire pump assembly. For accurate car diagnostics, ask specifically for fuel system pressure testing and electrical connection inspection. These tests will pinpoint whether the issue stems from the pump itself or the supporting electrical system.

Thanks for sharing your Golf experience, your symptoms were exactly like mine. The electrical connection fix rather than full pump replacement makes total sense. I went ahead with the repair at my local shop and they also found issues with the fuel system wiring. Just wondering, do you remember roughly what you paid for the fix? And has your car run smoothly since the repair? I want to make sure my fuel pump and engine stalling problems are truly resolved before putting this behind me. Also curious if they identified any fuel injector problems during your repair since my mechanic mentioned checking those too.

Glad to hear you had the repair done. The electrical connection fix on my Golf cost 95€ total, which was much better than replacing the entire fuel pump assembly. A bad connection was causing the same symptoms you experienced. Since the auto repair last season, my car has run perfectly with no engine stalling or starting problems. Fuel consumption returned to normal levels too. Car mechanics confirmed there were no fuel injector issues in my case, the rough running was purely from the inconsistent power supply to the pump due to the damaged wiring. The repair shop did a great job identifying the real problem rather than jumping straight to full pump replacement. When fuel pump diagnosis is done properly, you often find these simpler electrical fixes that cost much less but fully resolve the symptoms. If your repair was similar to mine, you should notice a clear improvement in performance right away. The engine should run smoothly without any hesitation or stalling issues.

I really appreciate all the feedback on the fuel pump electrical issues. Following up on my repair experience, I ended up paying 120€ for the full diagnosis and fix at a local auto repair specialist. The automotive diagnosis process was thorough and revealed corroded wiring connections just like you described. The car mechanics cleaned all the fuel pump electrical contacts, replaced some damaged wiring, and added protective coating to prevent future moisture problems. No engine stalling since then and the rough running is completely gone. They also checked the fuel injector system during inspection but found it was working properly. The repair took about 3 hours total and my car feels like new again. Fuel consumption is back to normal levels too. Such a relief to have this fixed without needing an expensive full pump replacement. Good to know these symptoms often point to electrical issues rather than complete fuel pump failure. My initial frustration with getting accurate car diagnostics led me to seek opinions here, really glad I did before spending more at the original shop that missed these issues.