BMW 320i Electrical Systems

The electrical system in your BMW 320i is responsible for powering many parts and systems in your compact executive car. It consists of the battery, starter, and alternator, as well as the wires, relays, and switches that connect everything and make it all work.

It all starts with the battery delivering the electricity that the starter uses to create ignition. The alternator generates the juice that fuels such parts as your wipers, power windows, and electronics, while also providing the battery with the electricity it then stores for future use.

How to Spot Electrical System Problems

Unfortunately, even the best electrical systems can go bad. Wires can fray. Switches and relays can fail. When that happens, your car's left without the power it needs to operate at its best. Signs of trouble include:

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If you notice any of these signs, check your car's electrical system. When you find the source of your trouble, insist on using the best parts for your vehicle in your repairs. That means shopping for the authentic electrical system parts that BMW made specifically for your luxury car. We sell those parts at a discount to the MSRP that others charge, meaning you'll save money on the parts you need. Buy today and we'll ship your order directly to your doorstep.