Why does my 540i xDrive’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 540i xDrive testing 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 540i xDrive making engine noise?

Strange engine sounds can be a sign something’s off in your BMW 540i xDrive. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. 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 540i xDrive engine?

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

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

What can cause the engine in my 540i xDrive to suddenly stop?

There are different reasons your 540i xDrive 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 540i xDrive repair?

For BMW 540i xDrive 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.

Reliable Repairs for 2021 BMW 540i xDrive Engines

Learn about

2021 BMW 540i xDrive Trim Options

Select your BMW 540i xDrive trim level to learn more about BMW-recommended engine repair. Even BMW 540i xDrive parts will get older and change.

L6/3.0L

BMW 540i xDrive Repairs and Services

Nothing stays the same forever. Even your BMW 540i xDrive’s engine parts and components will change. We’re here to help when something stops working. Select a repair or category to learn more about 2021 BMW 540i xDrive services.

We Care for BMW 540i xDrive Engines

BMW 540i xDrive engines are known for their reliability. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 2021 BMW 540i xDrive engine repairs. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your BMW 540i xDrive engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 2021 BMW 540i xDrive

As soon as your 540i xDrive check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system that won't go away on its own. Potential causes may include a faulty oxygen sensor, bad spark plug, a clogged catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your 540i xDrive to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. rattling sounds, burning smells, or engine misfiring.

2021 540i xDrive Engine Services

If your 2021 540i xDrive engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. 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 seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 2021 540i xDrive engine repairs and you can feel confident knowing that we use BMW-approved parts and components like the serpentine belt, motor oil seal, sensors, or another part.

2021 BMW 540i xDrive Engine Q&A

Why does my 540i xDrive’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 540i xDrive testing 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 540i xDrive making engine noise? Strange engine sounds can be a sign something’s off in your BMW 540i xDrive. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. 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 540i xDrive engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my BMW 540i xDrive 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 xDrive when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my 540i xDrive to suddenly stop? There are different reasons your 540i xDrive 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 540i xDrive repair? For BMW 540i xDrive 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.