To the right of your air filter housing. Large black plastic soup can with two shiny hoseclamps. To the left of the BMW logo on the engine. The Bosch part is $282. from www.alloemautoparts.com If you can change a tire you can tackle this, but if you really have no experience get some help so you can get the air filter and sensor clip connected properly. And wear gloves so the screwdriver does not freeze to your hand. (LOL)

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