You bought your Alpina B7L xDrive because its a reputation for performance and German engineering agreed with your nature; so why would you be okay with second rate when it comes to great quality auto parts? While it may not be difficult to buy replacement parts for BMW vehicles, these days only the absolute best are required to fix your automobile. BMW vehicle drivers have become used to a certain level of sporty handling when driving their Alpina B7L xDrive around town. Your BMW dealership isn't the only place to find genuine or original equipment quality replacement parts for your Alpina B7L xDrive.
Due to advancements in computing, each vehicle on the road today is more efficient and powerful than the model that came before it... and this continues to improve year after year. Inside most cars built today, including your BMW Alpina B7L xDrive, is a pre-detonation (or knock) sensor; a small microphone that can pick up a narrow range of sounds that are only heard when your ignition detonates prematurely. This knock sensor tells your ECU when this is happening, and it attempts to fix the situation by making adjustments to other systems. That might mean your air/fuel ratio is changed or the spark impulse is delayed... all thanks to your BMW Alpina B7L xDrive knock detonation sensor.
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