Why does my 100’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your 100 firing up 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 100 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by 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 100 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I add water to my Audi 100 radiator?

It’s not recommended you put water in your 100 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 100 to suddenly stop?

Reasons your 100 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs Audi 100 engines?

Your local Firestone Complete Auto Care fixes Audi 100 engines. Book an appointment today! We have thousands of locations across the country.

1991 Audi 100 Engine Repair

Learn about

1991 Audi 100 Trim Options

Select your Audi 100 trim level to learn more about Audi-recommended engine repair. Use the following chart to find information.

L5/2.3L

1991 Audi 100 Repair

Nothing lasts forever. Even your Audi 100’s engine parts and components will change. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 1991 Audi 100.

We Know Audi 100 Engines

The Audi 100 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 wrong on the road. When they do, you might find yourself searching for 1991 Audi 100 engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Audi 100 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.

My 1991 Audi 100 Check Engine Light Is On

As soon as your 100 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, Causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your 100 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 100 engine service might include oil leaks, or a sinking feeling that something’s wrong.

Audi 100 Engine Repair

When your Audi 100 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. 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. Choose Firestone Complete Auto Care for Audi 100 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, fuses, or a different component.

Questions About 1991 Audi 100 Engines

Why does my 100’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. It’s just your 100 firing up 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 100 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by 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 100 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I add water to my Audi 100 radiator? It’s not recommended you put water in your 100 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 100 to suddenly stop? Reasons your 100 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Audi 100 engines? Your local Firestone Complete Auto Care fixes Audi 100 engines. Book an appointment today! We have thousands of locations across the country.