Why does the check engine light in my 740i 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 740i firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my BMW 740i making engine noise?

Strange engine sounds can be a sign something’s off in your BMW 740i. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 740i engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my BMW 740i radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 740i when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my 740i engine suddenly stop?

If your 740i car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who repairs BMW 740i engines?

Your local Firestone Complete Auto Care fixes BMW 740i engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 2020 BMW 740i

Learn about

2020 BMW 740i Trim Options

Select your BMW 740i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

L6/3.0L

2020 BMW 740i Repair

Nothing stays the same forever. Even your BMW 740i's many parts and pieces. 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 2020 BMW 740i.

We’re Trained to Care for BMW 740i Engines

BMW 740i drivers trust that their 740i will take them near and far. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If they do, you’ll have to find a dependable 2020 BMW service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service BMW 740i engines. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2020 BMW 740i

An illuminated check engine light on your BMW 740i is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your car’s starter, Potential causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your 740i in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. rattling sounds, burning smells, or a sinking feeling that something’s wrong.

BMW 740i Engine Repair

If your 2020 740i engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a repair can wait, 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 740i engine repairs and you can drive easy knowing that we use BMW-approved parts and fluids — serpentine belt, engine oil seal, sensors, or a different component.

2020 BMW 740i Engine Q&A

Why does the check engine light in my 740i 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 740i firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my BMW 740i making engine noise? Strange engine sounds can be a sign something’s off in your BMW 740i. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 740i engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my BMW 740i radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 740i when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my 740i engine suddenly stop? If your 740i car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who repairs BMW 740i engines? Your local Firestone Complete Auto Care fixes BMW 740i engines. Book an appointment today! We have thousands of locations across the country.