Why does my A5 Quattro’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my Audi engine sound different?

Strange under-the-hood noises can point to problems within your Audi A5 Quattro engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Audi engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Audi A5 Quattro engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I add water to my Audi A5 Quattro 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 can cause the engine in my A5 Quattro to suddenly stop?

Your A5 Quattro car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Audi A5 Quattro engines?

Your local Firestone Complete Auto Care has you covered with expert A5 Quattro engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 2021 Audi A5 Quattro Engines

Learn about

2021 Audi A5 Quattro Trim Options

Select your Audi A5 Quattro trim level to learn more about Audi-recommended engine repair. Even Audi A5 Quattro parts will get older and change.

L4/2.0L

Repairs for Your 2021 Audi A5 Quattro

Nothing lasts forever. Even your Audi A5 Quattro's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2021 Audi A5 Quattro.

We Know Audi A5 Quattro Engines

The Audi A5 Quattro is respected for its reliability. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 2021 Audi A5 Quattro engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know Audi A5 Quattro engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Check Engine Light on 2021 Audi A5 Quattro

If your A5 Quattro check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission system, and it won’t go away by ignoring it. Potential 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 A5 Quattro in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. Other signs it's time for Audi A5 Quattro engine service might include essential fluid leaks, or engine misfiring.

Engine Repairs for Your 2021 A5 Quattro

If your 2021 Audi A5 Quattro needs engine repair, 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 isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. 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 A5 Quattro engine repairs and you can drive easy knowing that we use Audi-approved parts and fluids — cambelt, engine oil seal, sensors, or other parts.

2021 Audi A5 Quattro Engine Q&A

Why does my A5 Quattro’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Audi engine sound different? Strange under-the-hood noises can point to problems within your Audi A5 Quattro engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Audi engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Audi A5 Quattro engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' flooring the gas pedal while the car is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I add water to my Audi A5 Quattro 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 can cause the engine in my A5 Quattro to suddenly stop? Your A5 Quattro car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Audi A5 Quattro engines? Your local Firestone Complete Auto Care has you covered with expert A5 Quattro engine repair. Schedule an appointment today and see us at one of our thousands of locations.