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This article provides a list of Audi warning lights and a brief explanation of what they mean.

Table of Contents


Audi Check engine lightCheck Engine Light This light means there is a problem with the engine. Read the codes with an OBD-II scanner as soon as possible. The fuel economy may decrease.
Audi Engine Overheating Low CoolantEngine Overheating

If the red temperature light turns on or flashes while driving or stays on at startup, it means that the engine cooling level is low or overheating. Below the thermometer symbol, you will see the words coolant. 

Do not continue to drive your Audi if the engine is overheating.

Audi Level Sensor

Oil Level Sensor  

This symbol is related to the engine oil level. If the light stays on when the engine is running, it means the oil level is low or has low oil pressure.

Turn the vehicle OFF, and do not drive if this light remains on. If you let your engine run with the oil light on, it may cause severe engine damage.

If the symbol shows MIN, it means the engine oil level is low. Add engine oil to bring the level to the recommended level.

If the symbol shows SENSOR, it means there is a malfunction with the oil level sensor.


Audi Defective Light BulbDefective Light Bulb This symbol indicates that at least one light bulb is burned out, or an incorrect bulb type has been installed. For example, you install an LED lamp where a halogen bulb is required.  
Audi Worn Brake Pads

Worn Brake Pads The yellow circle with two dashed lines indicates that your Audi brake pads are worn. BRAKE light may also turn on at the same time.

Audi brakeBrake

If the indicator light illuminates, it means that either your brake fluid is low or there is a malfunction in the brake system. The light also appears when the parking brake is applied.

Be sure to release the parking brake before driving. If the light appears while driving, press the brake pedal lightly to check the pressure and verify the brakes are operational. If normal, pull over and check brake fluid level.

Audi Oil Warning LightOil Warning Light

If this light comes on and is red, there is low oil pressure or little oil in the engine. Stop the vehicle as soon as possible and check the oil level.

Add oil if the level is too low. If the oil warning light doesn't turn off, do not continue driving the vehicle. Call a mechanic and get your Audi diagnosed.

Audi Battery Warning LightBattery Warning Light If the battery symbol appears on the dashboard, there is a problem with the charging system. The battery is not getting charged, or the alternator is not generating enough power. If you continue to drive with the light on, the car may eventually die, and you won't restart the vehicle.
Audi Anti-lock braking systemABS (Anti-lock braking system)

An anti-lock braking system assists the driver to have control when driving on slippery roads. If the ABS indicator light comes On, there is a problem with your braking system.

Your braking capability may or may not operate normally, but ABS will definitively be disabled. 

Audi AirbagAirbag

If the airbag indicator light comes on, it indicates that the Airbag system and seat belt tensioner are malfunctioning.

Airbags may not deploy in case of an accident.

Audi Electronic Steering (EPC)Electronic Power Steering (EPC)

If the indicator light illuminates while driving, there is a problem with your electric power steering. Check power steering fluid if your Audi has hydraulic power steering.

If this light remains on, the steering wheel may be heavier and more difficult to turn.

Audi Tire Pressure Monitoring System TPMS

Tire Pressure Monitoring System (TPMS) If the light comes On blinking or stays On, it indicates that one of the tires has a low pressor. This light may also stay on if there is a problem with either your TPMS or your spare tire is not installed. Have your tires inflated according to the vehicle's specifications and reset the TPMS.


Audi Keyless Access System

Keyless Access System When the key light illuminates, the keyless access system is not functioning properly, or the key is not recognized. Try locking and unlocking the car one more time, then try to start it.

Audi Electronic Stabilization Control ESC

Electronic Stabilization Control ESC

ESC's main purpose is to prevent your Audi slip. If the light is flashing while driving, the system is trying to prevent the wheel from slipping. During cornering, if the vehicle slips than desired, the ESC system stabilizes the car.

When driving on loose or slippery roads, the ESC system assists the driver in maintaining road traction. If the indicator light illuminates, it indicates that there is a problem with the ESC system.

If both the ESC and ABS lights stay on, that means there is a malfunction with the ABS. Brakes may work properly but without ABS.

Audi Fasten the Seat Belt

Fasten the Seat Belt This is a reminder to fasten the seat belt.

Audi Fuel Vehicle ASAPFuel Vehicle ASAP This light means that you are low on fuel. 
Audi Parking Brake or Brake System FailureParking Brake or Brake System Failure This light means that there is a problem with the brake system. Pull over immediately and check the brake fluid level. Do not drive with this light on without consulting a mechanic. 
Audi Glow Plug Indicator Diesel Wait For It to Turn Off then StartGlow Plug Indicator (Diesel) Wait for It to Turn Off, then Start This light means that the glow plugs are warming up when you first turn on the ignition. If this light stays on all the time, there is a problem with one of the glow plugs. 
Audi Hazard Lights

Hazard Lights This light means that all turn signals are flashing, indicating an emergency. 

Audi Windshield DefrostWindshield Defrost  This light means that air will blow on the windshield to defrost the fog or frost.  
Audi Low Tire Pressure Check Tires

Low Tire Pressure Check Tires This light means one or more tires have low tire pressure. Inflate tires to recommended pressure. Typically 35-40 PSI. 

Audi Fog LightsFog Lights This light means the fog lights are on. 
Audi High BeamHigh Beam This light means the high beams are turned on. 
Audi blind spot

Side Assist/ Blind Spot Monitor

The side assist helps you monitor the blind spots. It warns you if there are vehicles that are getting closer or are in your blind spots.

If the light always stays on, it means there is a problem with the side assist.


If there is an Audi warning light that we missed, please leave a comment.

Audi Dashboard Warning Lights

To diagnose any Audi warning light, you can use an Audi VW All System Scanner to retrieve the fault code via the diagnostic port under the dashboard. For more help, follow this guide on How to read Audi fault codes