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

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my BMW engine sound different?

Strange engine sounds can be a sign something’s off in your BMW 840i Gran Coupe. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 840i Gran Coupe 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

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

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What can cause a 840i Gran Coupe engine to suddenly stop?

There are different reasons your 840i Gran Coupe 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 840i Gran Coupe engines?

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

Engine Repairs for Your 2021 BMW 840i Gran Coupe

Learn about

2021 BMW 840i Gran Coupe Trim Options

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

L6/3.0L

BMW 840i Gran Coupe Repairs and Services

Nothing stays the same forever. Even your BMW 840i Gran Coupe’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 840i Gran Coupe services.

We Know BMW 840i Gran Coupe Engines

The BMW 840i Gran Coupe is respected for its reliability. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 2021 BMW 840i Gran Coupe engine repairs. 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 Gran Coupe engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 2021 BMW 840i Gran Coupe Check Engine Light Is On

An illuminated check engine light on your BMW 840i Gran Coupe 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 that won't go away on its own. Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your 840i Gran Coupe in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs it's time for BMW 840i Gran Coupe engine service might include oil leaks, or misfiring.

BMW 840i Gran Coupe Engine Repair

If your 2021 840i Gran Coupe engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. If a repair can wait, 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 840i Gran Coupe engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the timing belt, oil gasket, fuses, or other parts.

Engine Q&A 2021 BMW 840i Gran Coupe

Why does the check engine light come on when I start my 840i Gran Coupe? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my BMW engine sound different? Strange engine sounds can be a sign something’s off in your BMW 840i Gran Coupe. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 840i Gran Coupe 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my BMW 840i Gran Coupe radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What can cause a 840i Gran Coupe engine to suddenly stop? There are different reasons your 840i Gran Coupe 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 840i Gran Coupe engines? Your local Firestone Complete Auto Care has you covered with expert 840i Gran Coupe engine repair. Schedule an appointment today and see us at one of our thousands of locations.