Your car relies on electrical power as well as fuel power to operate. The function of your BMW 740iL alternator is to ensure all the accessories and electrical components of your car have enough juice to run smoothly. There are a surprising number of components that rely on your BMW 740iL alternator.

In addition to the obvious accessories such as your radio, power windows, power doors and heated seats, your 740iL alternator is responsible for your headlights, water pump, windshield washer pump, fan motor, and a host of other pumps, motors and accessories. The typical BMW 740iL alternator now features 100 amps or more instead of the 50 or 60 amps it used to come with, since there are so many new power-draining accessories on modern cars.

Despite this responsibility, your 740iL alternator is still just a rotating assembly with some bearings and shafts, which means that over time, your BMW 740iL alternator is bound to fail. A loss of power is a strong indication of a failing 740iL alternator. Your headlights or dash lights may dim, or your signal lights may start blinking slower. Your power windows may become sluggish when your BMW 740iL alternator is on the blink. Even your engine itself is subject to the consequences of a fading 740iL alternator. If your car is hesitant or slow to accelerate, it may be time to test your BMW 740iL alternator. Often a failed 740iL alternator will necessitate a new battery as well, since your drained battery probably won't be able to hold a charge as well as it did.You can purchase a new BMW 740iL alternator and battery and receive them both in one convenient shipment through our extensive online catalogue.