Why does the check engine light come on when I start my 90?

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 dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Audi 90 engine noises bad?

Unusual noises can signal a problem with your Audi 90 engine. Tapping or knocking could mean you need an oil change. 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 could be a sign that something is wrong with your brakes — not the engine.

What could damage my Audi 90 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 accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in my Audi 90 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 90 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my 90 to suddenly stop?

There are different reasons your 90 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 fixes Audi 90 engines?

Your local Firestone Complete Auto Care has you covered with expert 90 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

1988 Audi 90 Engine Repair

Learn about

1988 Audi 90 Trim Options

Select your Audi 90 trim level to learn more about Audi-recommended engine repair. Even Audi 90 parts will get older and change.

L4/2.0L

L5/2.3L

Audi 90 Repairs and Services

Nothing lasts forever. Even your Audi 90’s engine parts and components will change. When something breaks, we're ready. Select a repair or category to learn more about 1988 Audi 90 services.

We’re Trained to Care for Audi 90 Engines

Audi 90 drivers trust that their 90 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. Things can go wrong on the road. If they do, you’ll have to find a dependable 1988 Audi service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Audi 90 engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1988 Audi 90 Check Engine Light Is On

As soon as your 90 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 or emission control system that won’t go away on its own. Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your 90 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. engine rattling, essential fluid leaks, or misfiring.

1988 90 Engine Services

If your 1988 Audi 90 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 service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Audi 90 engine repairs and you can feel confident knowing that we use Audi-approved parts and components like the timing belt, valve guide seal, ignition coil, or other parts.

Engine Q&A 1988 Audi 90

Why does the check engine light come on when I start my 90? 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 dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Audi 90 engine noises bad? Unusual noises can signal a problem with your Audi 90 engine. Tapping or knocking could mean you need an oil change. 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 could be a sign that something is wrong with your brakes — not the engine.
What could damage my Audi 90 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 accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in my Audi 90 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 90 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my 90 to suddenly stop? There are different reasons your 90 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 fixes Audi 90 engines? Your local Firestone Complete Auto Care has you covered with expert 90 engine repair. Schedule an appointment today and see us at one of our thousands of locations.