Certain other BMW models are also susceptible to fuel pump issues, often stemming from wire contact problems. Typical symptoms of fuel pump problems in BMWs include sluggish acceleration, sputtering at high speeds, or difficulty starting the engine. To resolve this issue, it’s recommended to ...
Looking back on all of this now, it’s easy to see that this group of symptoms was a classic voltage regulator failure. When that part fails, the alternator overcharges the system with 18+ volts, when it should only be receiving in the 13.8 range. As a result, all of the car’s c...