If you have noticed a difference in the efficiency of your power accessories lately, the power windows moving slowly or the lights dimming as you hit the switch to operate them, you could have trouble brewing with your Audi A4 alternator. Often when the A4 alternator fails, it does so gradually, offering a limited amount of power production that can be the source of those dimming lights and slow moving windows. The Audi A4 alternator is made up of three separate sections, each producing its own flow of voltage independently, one section at a time in turn to allow it to produce enough power to charge the battery as the engine idles.

Often one section will fail, reducing the amount of power produced by the A4 alternator, but avoiding total failure. This situation can severely reduce the performance of many vehicle components, giving you a clear warning that replacement of the Audi A4 alternator is necessary before it fails completely to leave you stranded with a vehicle that is unable to start and run.

The A4 alternator is the main component in the charging system of your vehicle, producing the power that supplies the many electrical parts and systems in today’s vehicles. Without its efficient function, the battery would quickly become drained with no power to charge it, and the vehicle unable to operate. We carry a selection of Audi A4 alternator replacement parts in our online catalog at very reasonable prices.Our secure site makes ordering quick and convenient, or you can dial our toll-free phone line to choose and order your A4 alternator with the assistance of our expert customer service staff.