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What maintenance checks should I perform on my 335xi after reaching 1000 miles to ensure optimal performance and prevent potential issues?

The oil change interval for your BMW 335xi is every 5,000 to 7,500 miles, but it's recommended to check the oil level every time you fill up on gas (≈ every 500 miles).

This is because the oil level can drop due to oil consumption, which is normal for gasoline engines.

The synthetic oil used in your BMW is designed to last longer than conventional oil, but it still needs to be changed regularly to maintain optimal engine performance.

If you're not sure what type of oil your BMW uses, check the owner's manual or consult with a mechanic.

The fuel filter in your BMW 335xi should be replaced every 15,000 to 30,000 miles, or whenever you notice a decrease in fuel efficiency.

The fuel filter helps to remove impurities from the fuel and prevent damage to the engine.

The air filter in your BMW 335xi should be replaced every 15,000 to 30,000 miles, or whenever you notice a decrease in air pressure or fuel efficiency.

The air filter helps to remove impurities from the air and provide a clean supply of oxygen to the engine.

The coolant level in your BMW 335xi should be checked every 6 months or 5,000 miles, whichever comes first.

Low coolant levels can cause damage to the engine and radiator, leading to costly repairs.

The brake pads in your BMW 335xi should be replaced every 30,000 to 50,000 miles, or whenever you notice a screeching or grinding noise when applying the brakes.

Worn-out brake pads can lead to accidents and reduce your car's stopping power.

The tire pressure in your BMW 335xi should be checked every month and before long trips.

Proper tire pressure can improve fuel efficiency, handle, and reduce wear on the tires.

The transmission fluid in your BMW 335xi should be changed every 30,000 to 60,000 miles, or whenever you notice a decrease in transmission performance.

The transmission fluid helps to lubricate and cool the transmission and prevent damage from wear and tear.

The battery in your BMW 335xi should be tested every 5 years or 50,000 miles, whichever comes first.

A weak or dead battery can leave you stranded and cause costly repairs.

The spark plugs in your BMW 335xi should be replaced every 30,000 to 100,000 miles, or whenever you notice a decrease in engine performance.

Worn-out spark plugs can reduce fuel efficiency and cause engine misfires.

The timing belt in your BMW 335xi should be replaced every 50,000 to 105,000 miles, or whenever you notice a decrease in engine performance.

A broken timing belt can cause costly repairs and even damage to your engine.

The brakes on your BMW 335xi are designed to work in conjunction with the anti-lock braking system (ABS).

If you notice a spongy brake pedal or a shaking steering wheel when applying the brakes, it may be a sign that your brakes need to be serviced.

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