Why does my 545i’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 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 under-the-hood noises can point to problems within your BMW 545i 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 my BMW 545i 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in my BMW 545i 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 545i when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a 545i engine to suddenly stop?

There are different reasons your 545i 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 can repair my BMW 545i engine?

Your local Firestone Complete Auto Care has you covered with expert 545i engine repair. Schedule an appointment today and see us at one of our thousands of locations.

2004 BMW 545i Engine Repair

Learn about

2004 BMW 545i Trim Options

Select your BMW 545i trim level to learn more about BMW-recommended engine repair. Even BMW 545i parts will get older and change.

V8/4.4L

Repairs for Your 2004 BMW 545i

Stuff wears out. Even your BMW 545i's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2004 BMW 545i repairs.

We’re Trained to Care for BMW 545i Engines

BMW 545i drivers trust that their 545i 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 2004 BMW service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 545i engines. 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.

Check Engine Light on 2004 BMW 545i

As soon as your 545i check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission system, and it won’t go away by ignoring it. Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your 545i issues diagnosed and our expert techs will get the root of the problem. Other signs your BMW 545i engine needs some TLC are oil leaks, or misfiring.

BMW 545i Engine Repair

If your 2004 545i 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. If it's necessary for your safety, we'll make sure you understand that, too. 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 2004 545i engine repairs and you can feel confident knowing that we use BMW-approved parts and components like the cambelt, engine oil seal, sensors, or other parts.

Questions About 2004 BMW 545i Engines

Why does my 545i’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 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 under-the-hood noises can point to problems within your BMW 545i 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 my BMW 545i 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 pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in my BMW 545i 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 545i when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a 545i engine to suddenly stop? There are different reasons your 545i 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 can repair my BMW 545i engine? Your local Firestone Complete Auto Care has you covered with expert 545i engine repair. Schedule an appointment today and see us at one of our thousands of locations.