Why does my S4’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Audi S4 engine noises bad?

Unusual noises can signal a problem with your Audi S4 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 be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a Audi engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Audi S4 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Audi S4 radiator?

While it’s not recommended, you can use water in your S4 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my S4 engine to suddenly stop?

Reasons your S4 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes Audi S4 engines?

Your local Firestone Complete Auto Care offers Audi S4 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

2009 Audi S4 Engine Repair

Learn about

2009 Audi S4 Trim Options

Select your Audi S4 trim level to learn more about Audi-recommended engine repair. Even Audi S4 parts will get older and change.

V8/4.2L

Repairs for Your 2009 Audi S4

Stuff wears out. Even your Audi S4’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 2009 Audi S4 repairs.

We’re Trained to Care for Audi S4 Engines

The Audi S4 is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 2009 Audi S4 engine repairs. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Audi S4 engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2009 Audi S4

As soon as your S4 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 fuel, Potential causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your S4 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine pinging noises, oil leaks, or a sinking feeling that something’s wrong.

Engine Repairs for Your 2009 S4

When your Audi S4 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a repair can wait, we'll let 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. By choosing Firestone Complete Auto Care for S4 engine repairs and you can feel good knowing that we only use Audi-compliant replacement parts such as the timing chain or belt, oil gasket, sensors, or other parts.

2009 Audi S4 Engine Q&A

Why does my S4’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Audi S4 engine noises bad? Unusual noises can signal a problem with your Audi S4 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 be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a Audi engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Audi S4 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Audi S4 radiator? While it’s not recommended, you can use water in your S4 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my S4 engine to suddenly stop? Reasons your S4 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes Audi S4 engines? Your local Firestone Complete Auto Care offers Audi S4 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!