BMW 323i Alternators
The alternator is an important part of the charging system in your BMW 323i. What it does sounds simple: it converts the engine's mechanical energy into the electricity that your systems and battery need to operate.
How it does that is a bit more involved, though. The crankshaft transforms the vertical motion of the engine pistons into rotary motion. That moves a drive belt that's attached to a pulley on the rotor shaft, which causes the shaft to spin. That agitates magnetic coils inside the rotor, with the coils producing an electric field. The field is captures by a rectifier as AC power, and then converted into the DC power that runs parts like your electronics, power windows, and wipers.
How to Spot Alternator Problems
Unfortunately, even the best alternator can go bad. When that happens, your battery is the only source for the electricity your vehicle uses. Since it can't be refreshed by a bad alternator, it will quickly fail due to the demand. Signs of alternator trouble include:
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If your alternator is going bad, replace it with the right one for your car: genuine BMW, since they're guaranteed to be compatible. You can save up to 35% off MSRP when you order yours from our online auto parts catalog. We have a great selection in stock and ready to ship, so buy today and You'll get your order in no time!
Alternator Pulley
Alternator Cooling Duct
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