There are a number of reasons why the check engine light, also referred to as the digital motor electronics (DME) in this vehicle, might illuminate in Your 2014 BMW 328i. The light lets You know a problem has been detected with the emission system, transmission, or engine. The most common reason this light comes on is a loose gas cap. Escaping fumes can easily trigger a check engine warning. A few other causes include cracked or loose hoses, dead battery, low fuel level, faulty wire harness, bad injectors, failed mass air flow sensor, dead crankshaft sensor, bad charcoal carbon canister, or failure of the high pressure fuel pump. A few symptoms You may experience alongside the check engine light include engine mIS Firing, acceleration failure, engine shaking at idle, overheating, hard to start, and the vehicle gets stuck in limp mode.
Helen V
July 16, 2020
The "check engine light" in your 2014 bmw 328i may be illuminated by something as simple as a loose gas cap or may indicate a more serious problem associated with your vehicle involving the emissions system, o2 sensors, blown head gaskets or faulty or contaminated fuel lines.
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