The 2007 Audi A4 Quattro has a 16.6-gallon gas tank on all models, but some A4 models without the Quattro specification have a larger, 18.5-gallon tank.

Your vehicle’s fuel tank capacity says a lot about your car. It tells you how far you can travel before filling up, and how much money you can expect to spend when you do finally visit the gas station.

But how much gas does your Audi need?

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, is here with a handy guide to the 2007 Audi A4 Quattro’s fuel tank. Let’s discuss your gas tank size, how to measure your fuel tank, and how to save on fuel and insurance costs, too!

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How big is the gas tank on a 2007 Audi A4 Quattro?

Depending on the trim level of your 2007 A4, your Audi will either have a gas tank capacity of 16.6 or 18.5 gallons. However, all A4 Quattro models will have a 16.6-gallon tank. This includes the:

2.0T Quattro Sedan

3.2 Quattro Sedan

2.0T Avant Quattro Wagon

3.2 Avant Quattro Wagon

2.0T Quattro Convertible

3.2 Quattro Convertible

The non-Quattro A4 models with the larger 18.5-gallon tank are the:

2.0T Sedan

3.2 Sedan

2.0T Convertible

How to check your Audi A4 Quattro’s gas tank size yourself.

There are three ways to check the size of your vehicle’s gas tank at home.

Check your owner’s manual

Your owner’s manual contains lots of information about your vehicle, including the size of your fuel tank. Check the index for terms like fuel tank capacity or gas tank size to find more information about your vehicle’s fuel reservoir.

Drive your car until your tank is empty, then fill it up

If you’re okay with a rough estimate of your Audi’s fuel tank capacity, this option is for you. Simply drive your car until your fuel gauge has reached E. Then, when you do finally fill up your tank again, take note of the number of gallons on the gas pump. This will be the approximate capacity of your fuel tank.

Use some basic math

You can also calculate the size of your vehicle’s fuel tank using some basic geometry!

First, measure the length, width, and height, in inches, of your car’s fuel tank. Next, multiply these numbers together to find the volume of your gas tank in cubic inches. Finally, divide that number by 231, or the number of cubic inches in a gallon, to find the total capacity of your gas tank.

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Saving on Audi fuel costs

If you’re worried about burning through fuel fast in your A4 Quattro, there are a couple of things to keep in mind that will help you avoid using more gas than necessary:

Don’t idle. Letting your car idle uses gas without any movement, particularly when it’s cold outside and your car has to work to keep the engine warm.

Find a regular

car maintenance schedule

. A properly maintained vehicle won’t need to use extra gas to lubricate parts of the engine.

Drive carefully when you can. If you find yourself constantly alternating between the accelerator and the brake, you’re probably using more fuel than you need to on your daily commute. Try to ease up on the accelerator and, when possible, coast to a stop instead.

Saving on Audi car insurance

Since we’re already talking about ways to save on car ownership costs, we would be remiss not to mention how

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