Why does the check engine light in my 850i turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your 850i firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are BMW 850i engine noises bad?

Strange under-the-hood noises can point to problems within your BMW 850i engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. 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 850i 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I put water in my BMW 850i radiator?

While it’s not recommended, you can use water in your 850i 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 can cause the engine in my 850i to suddenly stop?

There are different reasons your 850i 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 fixes BMW 850i engines?

Your local Firestone Complete Auto Care has you covered with expert 850i engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 1991 BMW 850i Engines

Learn about

1991 BMW 850i Trim Options

Select your BMW 850i trim level to learn more about BMW-recommended engine repair. Even BMW 850i parts will get older and change.

V12/5.0L

BMW 850i Repairs and Services

Nothing lasts forever. Even your BMW 850i's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 1991 BMW 850i services.

We’re Trained to Care for BMW 850i Engines

BMW 850i engines are known for their reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1991 BMW service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 850i engines. 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.

Illuminated Check Engine Light on 1991 BMW 850i

As soon as your 850i 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 vehicle's ignition, Possible causes can include a failing oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your 850i in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine rattling, burning smells, or a sinking feeling that something’s wrong.

BMW 850i Engine Repair

If your 1991 BMW 850i needs engine repair, 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 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. By choosing Firestone Complete Auto Care for 850i engine repairs and you can feel confident knowing that we use BMW-approved parts and components like the timing belt, motor oil seal, ignition coil, or another part.

1991 BMW 850i Engine Q&A

Why does the check engine light in my 850i turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. It’s just your 850i firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are BMW 850i engine noises bad? Strange under-the-hood noises can point to problems within your BMW 850i engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. 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 850i 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I put water in my BMW 850i radiator? While it’s not recommended, you can use water in your 850i 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 can cause the engine in my 850i to suddenly stop? There are different reasons your 850i 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 fixes BMW 850i engines? Your local Firestone Complete Auto Care has you covered with expert 850i engine repair. Schedule an appointment today and see us at one of our thousands of locations.