Why does my 840i xDrive Gran Coupe’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us 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 xDrive Gran Coupe. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. 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 xDrive Gran Coupe 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my BMW 840i xDrive Gran Coupe radiator?

It’s not recommended you put water in your 840i xDrive Gran Coupe 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 840i xDrive Gran Coupe engine to suddenly stop?

If your 840i xDrive Gran Coupe car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who fixes BMW 840i xDrive Gran Coupe engines?

Your local Firestone Complete Auto Care offers BMW 840i xDrive Gran Coupe engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

2025 BMW 840i xDrive Gran Coupe Engine Repair

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2025 BMW 840i xDrive Gran Coupe Trim Options

Select your BMW 840i xDrive Gran Coupe trim level to learn more about BMW-recommended engine repair. Even BMW 840i xDrive Gran Coupe parts will get older and change.

2025 BMW 840i xDrive Gran Coupe Repair

Stuff wears out. Even your BMW 840i xDrive Gran Coupe's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 2025 BMW 840i xDrive Gran Coupe services.

We’re Trained to Care for BMW 840i xDrive Gran Coupe Engines

BMW 840i xDrive Gran Coupe drivers trust that their 840i xDrive Gran Coupe will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If they do, you’ll have to find a dependable 2025 BMW service center — quick! 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 840i xDrive Gran Coupe engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 2025 BMW 840i xDrive Gran Coupe

As soon as your 840i xDrive Gran Coupe 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. Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your 840i xDrive Gran Coupe in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. Other signs your BMW 840i xDrive Gran Coupe engine needs some TLC are essential fluid leaks, or a sinking feeling that something’s wrong.

2025 840i xDrive Gran Coupe Engine Services

When your BMW 840i xDrive Gran Coupe 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. If it's necessary for your safety, we'll make sure you understand that, too. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2025 840i xDrive Gran Coupe engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the cambelt, valve guide seal, fuses, or another part.

Questions About 2025 BMW 840i xDrive Gran Coupe Engines

Why does my 840i xDrive Gran Coupe’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us 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 xDrive Gran Coupe. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. 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 xDrive Gran Coupe 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my BMW 840i xDrive Gran Coupe radiator? It’s not recommended you put water in your 840i xDrive Gran Coupe 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 840i xDrive Gran Coupe engine to suddenly stop? If your 840i xDrive Gran Coupe car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who fixes BMW 840i xDrive Gran Coupe engines? Your local Firestone Complete Auto Care offers BMW 840i xDrive Gran Coupe engine repair. Schedule an appointment today at one of our thousands of locations nationwide!