Why does my 745Li’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your 745Li testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why does my BMW engine sound different?

Unusual noises can signal a problem with your BMW 745Li engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my BMW 745Li engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I put water in my BMW 745Li radiator?

While it’s not recommended, you can use water in your 745Li 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.

Why did my 745Li engine suddenly stop?

There are different reasons your 745Li vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Where can I go for BMW 745Li repair?

Your local Firestone Complete Auto Care has you covered with expert 745Li engine repair. Schedule an appointment today and see us at one of our thousands of locations.

2004 BMW 745Li Engine Repair

Learn about

2004 BMW 745Li Trim Options

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

V8/4.4L

BMW 745Li Repairs and Services

Stuff wears out. Even your BMW 745Li’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 745Li.

We Care for BMW 745Li Engines

The BMW 745Li is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 2004 BMW 745Li engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 745Li engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 2004 BMW 745Li Check Engine Light Is On

As soon as your 745Li check engine light turns on, it’s time to get an expert’s opinion. 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, a problem with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your 745Li in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, essential fluid leaks, or a sinking feeling that something’s wrong.

2004 745Li Engine Services

If your 2004 745Li engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2004 745Li engine repairs and you can drive easy knowing that we use BMW-approved parts and fluids — cambelt, valve guide seal, fuses, or another part.

Questions About 2004 BMW 745Li Engines

Why does my 745Li’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your 745Li testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my BMW engine sound different? Unusual noises can signal a problem with your BMW 745Li engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my BMW 745Li engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I put water in my BMW 745Li radiator? While it’s not recommended, you can use water in your 745Li 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.
Why did my 745Li engine suddenly stop? There are different reasons your 745Li vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Where can I go for BMW 745Li repair? Your local Firestone Complete Auto Care has you covered with expert 745Li engine repair. Schedule an appointment today and see us at one of our thousands of locations.