Why does my 540i’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 a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are BMW 540i engine noises bad?

Strange engine sounds can be a sign something’s off in your BMW 540i. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my BMW 540i 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my BMW 540i 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 540i when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my 540i engine to suddenly stop?

Your 540i car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes BMW 540i engines?

Your local Firestone Complete Auto Care fixes BMW 540i engines. Book an appointment today! We have thousands of locations across the country.

2020 BMW 540i Engine Repair

Learn about

2020 BMW 540i Trim Options

Select your BMW 540i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

L6/3.0L

BMW 540i Repairs and Services

Nothing lasts forever. Even your BMW 540i’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2020 BMW 540i repairs.

We’re Trained to Care for BMW 540i Engines

BMW 540i engines are known for their reliability. You probably thought about that when you got 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 2020 BMW 540i 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 540i 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 2020 BMW 540i Check Engine Light Is On

An illuminated check engine light on your BMW 540i is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your or emission system, and it won’t go away by ignoring it. Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your 540i in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs your BMW 540i engine needs some TLC are essential fluid leaks, or misfiring.

Engine Repairs for Your 2020 540i

When your BMW 540i engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for BMW 540i engine repairs and you can drive easy knowing that we use BMW-approved parts and fluids — cambelt, motor oil seal, ignition coil, or other parts.

Engine Q&A 2020 BMW 540i

Why does my 540i’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 a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are BMW 540i engine noises bad? Strange engine sounds can be a sign something’s off in your BMW 540i. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my BMW 540i 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my BMW 540i 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 540i when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my 540i engine to suddenly stop? Your 540i car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes BMW 540i engines? Your local Firestone Complete Auto Care fixes BMW 540i engines. Book an appointment today! We have thousands of locations across the country.