Why does the check engine light in my 840Ci turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. This is just your 840Ci testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are BMW 840Ci engine noises bad?

Unusual noises can signal a problem with your BMW 840Ci engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by 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 840Ci engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my BMW 840Ci radiator?

While it’s not recommended, you can use water in your 840Ci 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.

Why did my 840Ci engine suddenly stop?

There are different reasons your 840Ci 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 840Ci repair?

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

Reliable Repairs for 1994 BMW 840Ci Engines

Learn about

1994 BMW 840Ci Trim Options

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

V8/4.0L

BMW 840Ci Repairs and Services

Stuff wears out. Even your BMW 840Ci's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1994 BMW 840Ci services.

We Know BMW 840Ci Engines

BMW 840Ci engines are known for their reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Sometimes plans go sideways. When they do, you might find yourself searching for 1994 BMW 840Ci engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 840Ci engines. 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.

Illuminated Check Engine Light on 1994 BMW 840Ci

An illuminated check engine light on your BMW 840Ci 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 control 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 a leak in the engine vacuum, to name a few potential sources. Bring your 840Ci 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 840Ci engine service might include burning smells, or a sinking feeling that something’s wrong.

1994 840Ci Engine Services

If your 1994 840Ci engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for BMW 840Ci engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the timing chain or belt, motor oil seal, ignition coil, or a different component.

Engine Q&A 1994 BMW 840Ci

Why does the check engine light in my 840Ci turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. This is just your 840Ci testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are BMW 840Ci engine noises bad? Unusual noises can signal a problem with your BMW 840Ci engine. Knocking or tapping could be a symptom of low oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing may be caused by 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 840Ci engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my BMW 840Ci radiator? While it’s not recommended, you can use water in your 840Ci 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.
Why did my 840Ci engine suddenly stop? There are different reasons your 840Ci 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 840Ci repair? Your local Firestone Complete Auto Care offers BMW 840Ci engine repair. Schedule an appointment today at one of our thousands of locations nationwide!