Why does the check engine light come on when I start my M850i xDrive?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your M850i xDrive firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my BMW engine sound different?

Unusual noises can signal a problem with your BMW M850i xDrive engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate 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 M850i xDrive engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still 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 M850i xDrive radiator?

It’s not recommended you put water in your M850i xDrive radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What could cause my M850i xDrive engine to suddenly stop?

There are different reasons your M850i 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.

Who repairs BMW M850i xDrive engines?

Your local Firestone Complete Auto Care fixes BMW M850i xDrive engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 2021 BMW M850i xDrive

Learn about

2021 BMW M850i xDrive Trim Options

Select your BMW M850i xDrive trim level to learn more about BMW-recommended engine repair. Even BMW M850i xDrive parts will get older and change.

V8/4.4L

Repairs for Your 2021 BMW M850i xDrive

Stuff wears out. Even your BMW M850i xDrive's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2021 BMW M850i xDrive.

We Care for BMW M850i xDrive Engines

BMW M850i xDrive drivers trust that their M850i xDrive will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2021 BMW M850i xDrive engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your BMW M850i xDrive engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2021 BMW M850i xDrive

If your M850i xDrive 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 fuel injection, Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your M850i xDrive in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. rattling sounds, essential fluid leaks, or misfiring.

2021 M850i xDrive Engine Services

If your 2021 BMW M850i xDrive 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. We'll also tell you if it's necessary for your safety. 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 M850i xDrive engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the cambelt, valve guide seal, ignition coil, or other parts.

Questions About 2021 BMW M850i xDrive Engines

Why does the check engine light come on when I start my M850i xDrive? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your M850i xDrive firing up its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my BMW engine sound different? Unusual noises can signal a problem with your BMW M850i xDrive engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate 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 M850i xDrive engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still 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 M850i xDrive radiator? It’s not recommended you put water in your M850i xDrive radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What could cause my M850i xDrive engine to suddenly stop? There are different reasons your M850i 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.
Who repairs BMW M850i xDrive engines? Your local Firestone Complete Auto Care fixes BMW M850i xDrive engines. Book an appointment today! We have thousands of locations across the country.