Why does my 740i’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. This is just your 740i 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 740i making engine noise?

Unusual noises can signal a problem with your BMW 740i engine. Tapping or knocking could mean you're low on 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 might be a sign of brake problems rather than engine issues.

What could damage my BMW 740i engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.

Is it okay to put water in my BMW 740i radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 740i when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my 740i engine to suddenly stop?

Reasons your 740i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for BMW 740i repair?

For BMW 740i engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Engine Repairs for Your 1994 BMW 740i

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1994 BMW 740i Trim Options

Select your BMW 740i trim level to learn more about BMW-recommended engine repair. Even BMW 740i parts will get older and change.

V8/4.0L

1994 BMW 740i Repair

Nothing lasts forever. Even your BMW 740i's many parts and pieces. We’re here to help when something stops working. Click on a repair below to learn more about 1994 BMW 740i repairs.

We Know BMW 740i Engines

BMW 740i 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 740i engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 740i engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1994 BMW 740i Check Engine Light Is On

An illuminated check engine light on your BMW 740i 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 fuel, Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your 740i in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your BMW 740i engine needs some TLC are oil leaks, or engine misfiring.

BMW 740i Engine Repair

When your BMW 740i 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. 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. By choosing Firestone Complete Auto Care for 740i 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.

1994 BMW 740i Engine Q&A

Why does my 740i’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. This is just your 740i 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 740i making engine noise? Unusual noises can signal a problem with your BMW 740i engine. Tapping or knocking could mean you're low on 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 might be a sign of brake problems rather than engine issues.
What could damage my BMW 740i engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.
Is it okay to put water in my BMW 740i radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 740i when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my 740i engine to suddenly stop? Reasons your 740i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for BMW 740i repair? For BMW 740i engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.