Why does the check engine light come on when I start my S4?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your S4 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?

Strange under-the-hood noises can point to problems within 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 indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

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

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car 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 S4 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 S4 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my S4 engine to suddenly stop?

There are different reasons your S4 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 Audi S4 engine?

Your local Firestone Complete Auto Care has you covered with expert S4 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

2006 Audi S4 Engine Repair

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2006 Audi S4 Trim Options

Select your Audi S4 trim level to learn more about Audi-recommended engine repair. Use the following chart to find information.

V8/4.2L

2006 Audi S4 Repair

Stuff wears out. Even your Audi S4’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2006 Audi S4 repairs.

We Know Audi S4 Engines

Audi S4 engines are known for their reliability. That might be why you bought it in the first place. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2006 Audi S4 engine repairs. 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 Audi S4 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 2006 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 vehicle's ignition, Causes may include a faulty oxygen sensor, damaged spark plug, a clogged catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your S4 to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs it's time for Audi S4 engine service might include oil leaks, or a sinking feeling that something’s wrong.

Audi S4 Engine Repair

If your 2006 S4 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 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 give you all the details you need to make an informed decision about your engine repairs. 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, valve guide seal, fuses, or another part.

2006 Audi S4 Engine Q&A

Why does the check engine light come on when I start my S4? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your S4 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? Strange under-the-hood noises can point to problems within 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 indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Audi engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Audi S4 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car 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 S4 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 S4 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my S4 engine to suddenly stop? There are different reasons your S4 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 Audi S4 engine? Your local Firestone Complete Auto Care has you covered with expert S4 engine repair. Schedule an appointment today and see us at one of our thousands of locations.