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How do you open the gas tank on a BMW 540i?

I’m borrowing my mother-in-law’s BMW while my car is in the shop, and I can’t figure out how to put gas in it. How do I open the fuel door on a BMW 540i?

avatar
Macy Fouse · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Nearly every make has a different method of opening the gas tank, so that’s totally understandable! Luckily, the process is the same for nearly every gas-powered
BMW
. To open the gas tank on a BMW 540i, make sure your car is in park, then press on the fuel door directly. This should spring the door right open to reveal your gas cap! If you’re not having luck with this, make sure your car is unlocked first. This prevents any thieves from tampering with your Bimmer’s gas tank.
Depending on which year model of 540i you’re driving, your gas tank probably holds around 18 gallons of gas, averaging about 414 miles of range on a full tank. Of course, that depends on where and how you drive. In general, the 540i will earn a combined mileage of 27 mpg, but even with that kind of fuel efficiency, you can still cut back on your gas expenses. Here are a few tips to try:
  • Stay on top of your Bimmer’s
    routine maintenance
    to prevent engine buildup.
  • Try to avoid quick acceleration and sudden braking.
  • Refrain from idling when possible.
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