Why is my check engine light on in my Audi A4?

If the check engine light in your Audi A4 starts blinking, that means that the problem needs urgent attention and your Audi should be brought in immediately. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system.

Can I drive my Audi with the check engine light on?

It is not recommended to drive an Audi if the engine light is flashing. Operating an Audi for an extended time when the check engine light is flashing will damage vehicle components. It is better to have the car towed to prevent further engine problems.

Is a solid check engine light serious?

Both a solid and flashing engine check light indicates that a problem has been detected. However, a flashing engine check light indicates that it is a serious problem that requires your immediate attention. If you see a flashing light, it’s best to contact a mechanic as soon as possible to prevent serious damage.

How do I turn off the check engine light on my Audi A4?

Audi A4 B8: How to Reset Check Engine Light

1. Step 1 – Locate your battery.
2. Step 2 – Remove negative terminal.
3. Step 3 – Refit negative terminal and start car.

Why is My Audi engine light on?

Your Audi’s check-engine light serves as a warning system to the driver that something isn’t quite right with its functionality – whether mild or severe. As we mentioned, these issues range in severity, from a loose gas cap to a serious engine malfunction like spark plug failure.

What is the most common reason for a check engine light?

Replacing a faulty oxygen sensor — a sensor used to optimize a vehicle’s fuel-to-air mixture to increase gas mileage and reduce emissions — is the most common cause for a check engine light. With over 400,000 repairs nationwide, oxygen sensor replacements account for 8% of all check engine light repairs.

What does a solid check engine light indicate?

If the engine light comes on solid, it may still be a reason for concern, however it doesn’t immediately need to strike fear in your heart. A solid Check Engine Light can mean something like a loose gas cap, or it can indicate a more in-depth problem like a fuel, timing, or transmission issue.

Why is My Audi check engine light on?

Loose gas cap: one of the main reasons can be a loose or missing gas cap. 2. Catalytic converter is damaged: the catalytic converter being damaged may cause the check engine light to come on. Spark plugs are bad: when spark plugs go bad they can cause the check engine light to appear on the dashboard.

Is it OK to drive with engine light on?

Can you drive a car with the engine light on? It’s okay to drive for a few miles, but be sure to schedule an inspection of the engine as soon as possible. If the check engine light comes on while you’re driving, don’t panic! Just be sure to have your car inspected as soon as possible after the light turns on.

Can you still drive your car with engine light on?

How to reset check engine light on Audi A4 B8?

Audi A4 B8: How to Reset Check Engine Light. 1 Step 1 – Locate your battery. Depending on your specific model of A4, your battery is in one of two places: tucked under the plastic cowling in the 2 Step 2 – Remove negative terminal. 3 Step 3 – Refit negative terminal and start car. 4 Related Discussions.

Where is the battery in an Audi A4?

Depending on your specific model of A4, your battery is in one of two places: tucked under the plastic cowling in the engine bay, or in the trunk of your car under the false floor. For models with the battery under the hood, the battery should be in the exposed, center portion of the cowl, and be readily available.

Is it safe to drive with check engine light on?

That check engine light can be a pesky bugger. It’s trying to help by alerting you of a potential problem, but without a code reader, you’re speaking different languages. Fortunately, unless that CEL is flashing, it is usually safe to drive the car home.

What are the terminals on an Audi A4?

Audi has conveniently marked the terminals for positive (+) and negative (-). Be careful not to open any doors or tap any radio settings, etc., as you may lose any presets or one tap window function, and have to go through the relearning process for those as well.