Why does my A6’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your A6 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Audi A6 making engine noise?

Unusual noises can signal a problem with your Audi A6 engine. Knocking or tapping could be a symptom of low 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 coming from the brakes, not the engine.

What could damage my Audi A6 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.

Is it okay to put water in my Audi A6 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What could cause my A6 engine to suddenly stop?

Your A6 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Audi A6 engines?

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

2004 Audi A6 Engine Repair

Learn about

2004 Audi A6 Trim Options

Select your Audi A6 trim level to learn more about Audi-recommended engine repair. Even Audi A6 parts will get older and change.

V6/3.0L

Repairs for Your 2004 Audi A6

Nothing lasts forever. Even your Audi A6’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2004 Audi A6 services.

We Care for Audi A6 Engines

Audi A6 drivers trust that their A6 will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2004 Audi A6 engine repairs. 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 engine will be in good hands. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 2004 Audi A6 Check Engine Light Is On

As soon as your A6 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 vehicle's ignition, Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your A6 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. engine rattling, oil leaks, or a sinking feeling that something’s wrong.

Engine Repairs for Your 2004 A6

If your 2004 A6 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair can wait, we'll let you know. If it's necessary for your safety, we'll make sure you understand that, 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 2004 A6 engine repairs and you can feel good knowing that we only use Audi-compliant replacement parts such as the timing belt, valve guide seal, ignition coil, or a different component.

Questions About 2004 Audi A6 Engines

Why does my A6’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your A6 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Audi A6 making engine noise? Unusual noises can signal a problem with your Audi A6 engine. Knocking or tapping could be a symptom of low 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 coming from the brakes, not the engine.
What could damage my Audi A6 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.
Is it okay to put water in my Audi A6 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What could cause my A6 engine to suddenly stop? Your A6 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Audi A6 engines? Your local Firestone Complete Auto Care fixes Audi A6 engines. Book an appointment today! We have thousands of locations across the country.