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 just your 545i testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why is my BMW 545i making engine noise?

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 may be caused by 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 545i 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my BMW 545i radiator?

It’s not recommended you put water in your 545i radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What can cause a 545i engine to suddenly stop?

Reasons your 545i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs BMW 545i engines?

For BMW 545i 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 2005 BMW 545i

Learn about

2005 BMW 545i Trim Options

Select your BMW 545i trim level to learn more about BMW-recommended engine repair. Use the following chart to find information.

V8/4.4L

BMW 545i Repairs and Services

Stuff wears out. Even your BMW 545i’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 2005 BMW 545i services.

We Care for BMW 545i Engines

The BMW 545i is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. When they do, you might find yourself searching for 2005 BMW 545i engine repair or replacement parts. 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 545i engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 2005 BMW 545i Check Engine Light Is On

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 control system that won’t go away on its own. Causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your 545i in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine pinging noises, essential fluid leaks, or misfiring.

Engine Repairs for Your 2005 545i

When your BMW 545i engine needs repairs, 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 can wait, we'll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2005 545i engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the cambelt, oil gasket, ignition coil, or a different component.

Engine Q&A 2005 BMW 545i

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 just your 545i testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my BMW 545i making engine noise? 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 may be caused by 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 545i 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my BMW 545i radiator? It’s not recommended you put water in your 545i radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What can cause a 545i engine to suddenly stop? Reasons your 545i car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs BMW 545i engines? For BMW 545i 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.