Why does the check engine light in my 745i turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your 745i firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my BMW engine sound different?

Strange under-the-hood noises can point to problems within your BMW 745i engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my BMW 745i engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to my BMW 745i radiator?

While it’s not recommended, you can use water in your 745i radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my 745i engine to suddenly stop?

Your 745i car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes BMW 745i engines?

For BMW 745i engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Engine Repairs for Your 2004 BMW 745i

Learn about

2004 BMW 745i Trim Options

Select your BMW 745i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

V8/4.4L

Repairs for Your 2004 BMW 745i

Stuff wears out. Even your BMW 745i’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 2004 BMW 745i.

We Care for BMW 745i Engines

The BMW 745i is respected for its reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. When they do, you might find yourself searching for 2004 BMW 745i engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your BMW 745i engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Illuminated Check Engine Light on 2004 BMW 745i

If your 745i check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel, Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your 745i to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. rattling sounds, oil leaks, or engine misfiring.

Engine Repairs for Your 2004 745i

If your 2004 BMW 745i needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. If it's necessary for your safety, we'll make sure you understand that, too. We want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for 745i engine repairs and you can drive easy knowing that we use BMW-approved parts and fluids — serpentine belt, valve guide seal, fuses, or another part.

2004 BMW 745i Engine Q&A

Why does the check engine light in my 745i turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. It’s just your 745i firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my BMW engine sound different? Strange under-the-hood noises can point to problems within your BMW 745i engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my BMW 745i engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my BMW 745i radiator? While it’s not recommended, you can use water in your 745i radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my 745i engine to suddenly stop? Your 745i car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes BMW 745i engines? For BMW 745i engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.