Why does the check engine light in my A4 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 A4 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why does my Audi engine sound different?

Strange under-the-hood noises can point to problems within your Audi A4 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 can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Audi A4 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle 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.

Can I add water to my Audi A4 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 A4 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my A4 engine suddenly stop?

If your A4 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 repairs Audi A4 engines?

Your local Firestone Complete Auto Care offers Audi A4 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Reliable Repairs for 2009 Audi A4 Engines

Learn about

2009 Audi A4 Trim Options

Select your Audi A4 trim level to learn more about Audi-recommended engine repair. Use the following chart to find information.

L4/1.8L

L4/2.0L

Audi A4 Repairs and Services

Nothing lasts forever. Even your Audi A4's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2009 Audi A4 services.

We Care for Audi A4 Engines

Audi A4 drivers trust that their A4 will take them near and far. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go wrong on the road. When they do, you might find yourself searching for 2009 Audi A4 engine repair or replacement parts. 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 Audi A4 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 2009 Audi A4

As soon as your A4 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 fuel injection, Causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your A4 in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, essential fluid leaks, or misfiring.

2009 A4 Engine Services

When your Audi A4 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Audi A4 engine repairs and you can feel confident knowing that we use Audi-approved parts and components like the timing chain or belt, engine oil seal, fuses, or a different component.

2009 Audi A4 Engine Q&A

Why does the check engine light in my A4 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 A4 firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my Audi engine sound different? Strange under-the-hood noises can point to problems within your Audi A4 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 can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Audi A4 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle 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.
Can I add water to my Audi A4 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 A4 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my A4 engine suddenly stop? If your A4 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 repairs Audi A4 engines? Your local Firestone Complete Auto Care offers Audi A4 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!