Why does the check engine light come on when I start my 840i?

It’s usually normal for your check engine light to turn on upon ignition. This is just your 840i testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are BMW 840i engine noises bad?

Strange engine sounds can be a sign something’s off in your BMW 840i. 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 could be a sign that something is wrong with your brakes — not the engine.

What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 840i engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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.

Is it okay to put water in my BMW 840i radiator?

While it’s not recommended, you can use water in your 840i 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 could cause my 840i engine to suddenly stop?

Reasons your 840i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes BMW 840i engines?

Your local Firestone Complete Auto Care has you covered with expert 840i engine repair. Schedule an appointment today and see us at one of our thousands of locations.

2024 BMW 840i Engine Repair

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2024 BMW 840i Trim Options

Select your BMW 840i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

2024 BMW 840i Repair

Stuff wears out. Even your BMW 840i's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 2024 BMW 840i services.

We Care for BMW 840i Engines

The BMW 840i is respected for its 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. If they do, you’ll have to find a dependable 2024 BMW service center — quick! That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your BMW 840i engine will be in good hands. 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.

Check Engine Light on 2024 BMW 840i

As soon as your 840i 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. Possible causes can include a failing oxygen sensor, damaged spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your 840i issues diagnosed and we’ll figure out why that check engine light is giving you grief. engine pinging noises, burning smells, or misfiring.

2024 840i Engine Services

When your BMW 840i engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure you know. If it's necessary for your safety, we'll make sure you understand that, 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 2024 840i engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the timing chain or belt, valve guide seal, sensors, or a different component.

Engine Q&A 2024 BMW 840i

Why does the check engine light come on when I start my 840i? It’s usually normal for your check engine light to turn on upon ignition. This is just your 840i testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are BMW 840i engine noises bad? Strange engine sounds can be a sign something’s off in your BMW 840i. 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 could be a sign that something is wrong with your brakes — not the engine.
What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 840i engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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.
Is it okay to put water in my BMW 840i radiator? While it’s not recommended, you can use water in your 840i 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 could cause my 840i engine to suddenly stop? Reasons your 840i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes BMW 840i engines? Your local Firestone Complete Auto Care has you covered with expert 840i engine repair. Schedule an appointment today and see us at one of our thousands of locations.