Why does the check engine light in my 325i 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 a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my BMW 325i making engine noise?

Strange under-the-hood noises can point to problems within your BMW 325i engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. 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 my BMW 325i engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my BMW 325i 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 325i when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my 325i to suddenly stop?

If your 325i car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who can repair my BMW 325i engine?

Your local Firestone Complete Auto Care fixes BMW 325i engines. Book an appointment today! We have thousands of locations across the country.

2004 BMW 325i Engine Repair

Learn about

2004 BMW 325i Trim Options

Select your BMW 325i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

L6/2.5L

2004 BMW 325i Repair

Stuff wears out. Even your BMW 325i's many parts and pieces. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 2004 BMW 325i.

We Know BMW 325i Engines

The BMW 325i is respected for its reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. 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 millions of vehicles since 1926, and our professional technicians are trained to service BMW 325i engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Illuminated Check Engine Light on 2004 BMW 325i

As soon as your 325i check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your combustion, Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your 325i in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, oil leaks, or engine misfiring.

2004 325i Engine Services

When your BMW 325i 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 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 seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for 325i engine repairs and you can feel confident knowing that we use BMW-approved parts and components like the cambelt, valve guide seal, ignition coil, or other parts.

Engine Q&A 2004 BMW 325i

Why does the check engine light in my 325i 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 a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my BMW 325i making engine noise? Strange under-the-hood noises can point to problems within your BMW 325i engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. 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 my BMW 325i engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my BMW 325i 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 325i when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my 325i to suddenly stop? If your 325i car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who can repair my BMW 325i engine? Your local Firestone Complete Auto Care fixes BMW 325i engines. Book an appointment today! We have thousands of locations across the country.