Introduction
This guide provides instructions on how to change your BMW Series 3 cabin air filter. Cabin air filters usually need replacement within 15,000 - 30,000 miles. An unchanged air filter is harmful to one's health so it is important to replace.
This repair requires a filter with dimensions 32.8in x 6.18in x 1.1in. The size of the cabin air filter varies between car models. Be sure to check your car model for the correct filter size.
Tools
Parts
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Open driver side door.
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Lift the car hood lever until you hear your hood release.
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Slide your hand under the hood and lift it up.
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Using the socket wrench, start unbolting all six external bolts.
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Release the cabin air filter from the hood.
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Place the cabin air filter under the hood.
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Screw in all six external hex screws back into place using the socket wrench.
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To reassemble your device, follow these instructions in reverse order.