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

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your 840Ci testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my BMW 840Ci making engine noise?

Strange engine sounds can be a sign something’s off in your BMW 840Ci. 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 840Ci 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in my BMW 840Ci 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 could cause my 840Ci engine to 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 fixes BMW 840Ci engines. Book an appointment today! We have thousands of locations across the country.

1997 BMW 840Ci Engine Repair

Learn about

1997 BMW 840Ci Trim Options

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

V8/4.4L

Repairs for Your 1997 BMW 840Ci

Nothing lasts forever. Even your BMW 840Ci’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 1997 BMW 840Ci repairs.

We’re Trained to Care for BMW 840Ci Engines

The BMW 840Ci 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. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1997 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 840Ci 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 offers both trustworthy and affordable engine repairs.

My 1997 BMW 840Ci Check Engine Light Is On

An illuminated check engine light on your BMW 840Ci is one of the first signs it's time to 'brake' for engine service. A check engine light that’s on or flashing could be a symptom of a serious problem in your vehicle's ignition, Causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your 840Ci in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. rattling sounds, burning smells, or engine misfiring.

1997 840Ci Engine Services

If your 1997 840Ci engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. 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 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 1997 840Ci engine repairs and you can drive easy knowing that we use BMW-approved parts and fluids — serpentine belt, engine oil seal, fuses, or other parts.

Engine Q&A 1997 BMW 840Ci

Why does the check engine light come on when I start my 840Ci? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your 840Ci testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my BMW 840Ci making engine noise? Strange engine sounds can be a sign something’s off in your BMW 840Ci. 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 840Ci 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in my BMW 840Ci 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 could cause my 840Ci engine to 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 fixes BMW 840Ci engines. Book an appointment today! We have thousands of locations across the country.