Why does the check engine light come on when I start my A6 Quattro?

It’s usually normal for your check engine light to turn on upon ignition. This is just your A6 Quattro 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 A6 Quattro engine noises bad?

Unusual noises can signal a problem with your Audi A6 Quattro engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Audi A6 Quattro engine?

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

Can I add water to my Audi A6 Quattro radiator?

It’s not recommended you put water in your A6 Quattro 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 the engine in my A6 Quattro to suddenly stop?

Reasons your A6 Quattro car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for Audi A6 Quattro repair?

Your local Firestone Complete Auto Care fixes Audi A6 Quattro engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 1999 Audi A6 Quattro

Learn about

1999 Audi A6 Quattro Trim Options

Select your Audi A6 Quattro trim level to learn more about Audi-recommended engine repair. Use the following chart to find information.

V6/2.8L

Audi A6 Quattro Repairs and Services

Nothing lasts forever. Even your Audi A6 Quattro’s engine parts and components will change. We’re here to help when something stops working. Select a repair or category to learn more about 1999 Audi A6 Quattro services.

We Care for Audi A6 Quattro Engines

Audi A6 Quattro drivers trust that their A6 Quattro will take them near and far. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 1999 Audi service center — quick! 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 Audi A6 Quattro engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 1999 Audi A6 Quattro Check Engine Light Is On

If your A6 Quattro check engine light is on, it’s time to get it looked at. A check engine light that’s on or flashing could be a symptom of a serious problem in your car’s starter, Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Bring your A6 Quattro to Firestone Complete Auto Care to get computerized diagnostics and we'll determine exactly why your check engine light is on. Other signs your Audi A6 Quattro engine needs some TLC are burning smells, or engine misfiring.

Audi A6 Quattro Engine Repair

If your 1999 Audi A6 Quattro needs engine repair, 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. 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 1999 A6 Quattro engine repairs and you can drive easy knowing that we use Audi-approved parts and fluids — timing chain or belt, engine oil seal, sensors, or other parts.

Engine Q&A 1999 Audi A6 Quattro

Why does the check engine light come on when I start my A6 Quattro? It’s usually normal for your check engine light to turn on upon ignition. This is just your A6 Quattro 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 A6 Quattro engine noises bad? Unusual noises can signal a problem with your Audi A6 Quattro engine. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Audi A6 Quattro engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my Audi A6 Quattro radiator? It’s not recommended you put water in your A6 Quattro 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 the engine in my A6 Quattro to suddenly stop? Reasons your A6 Quattro car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Audi A6 Quattro repair? Your local Firestone Complete Auto Care fixes Audi A6 Quattro engines. Book an appointment today! We have thousands of locations across the country.