Why does my 740i’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. This is just your 740i testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

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 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 740i engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my BMW 740i radiator?

While it’s not recommended, you can use water in your 740i 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 can cause the engine in my 740i to suddenly stop?

There are different reasons your 740i 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.

Who can repair my BMW 740i engine?

For BMW 740i 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 2017 BMW 740i

Learn about

2017 BMW 740i Trim Options

Select your BMW 740i trim level to learn more about BMW-recommended engine repair. Even BMW 740i parts will get older and change.

L6/3.0L

2017 BMW 740i Repair

Nothing stays the same forever. Even your BMW 740i's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2017 BMW 740i services.

We’re Trained to Care for BMW 740i Engines

BMW 740i engines are known for their reliability. 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. When they do, you might find yourself searching for 2017 BMW 740i engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service BMW 740i engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 2017 BMW 740i Check Engine Light Is On

If your 740i 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 or emission system, and it won’t go away by ignoring it. Possible causes can include a failing oxygen sensor, damaged 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 determine exactly why your check engine light is on. Other signs your BMW 740i engine needs some TLC are oil leaks, or a sinking feeling that something’s wrong.

2017 740i Engine Services

If your 2017 BMW 740i needs engine repair, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. 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 give you all the details you need to make an informed decision about your engine repairs. By choosing Firestone Complete Auto Care for 740i engine repairs and you can feel confident knowing that we use BMW-approved parts and components like the timing belt, oil gasket, sensors, or other parts.

Engine Q&A 2017 BMW 740i

Why does my 740i’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. This is just your 740i testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
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 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 740i engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my BMW 740i radiator? While it’s not recommended, you can use water in your 740i 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 can cause the engine in my 740i to suddenly stop? There are different reasons your 740i 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.
Who can repair my BMW 740i engine? For BMW 740i 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.