How to Reset Service Reminder Light on Audi A4
If you have an oil change reminder indicator or message on your Audi’s display, here’s how to reset it. It’s easy and doesn’t require a special diagnostic interface like VCDS.
With the key in and ignition on (position II), press and hold the WRENCH button on the instrument cluster and the clock adjustment button simultaneously. When SERVICE shows up on the display, release the buttons.
Oil Change Interval
The oil life monitor is a helpful tool that alerts you when your next oil change is due. When the system detects that you are due for an oil change, a message will appear briefly in the instrument cluster display when you turn on the vehicle.
The message will indicate how much time and distance remains until your next service interval is due. It will also provide a link to the Oil Service Reset Procedure.
To reset the oil service indicator, press and hold both the trip reset button and the clock adjuster (wrench) buttons with the key in position II. While still holding these buttons, turn the key to the ON position. This will reset the oil service indicator, as well as the maintenance reminder and service due date display. You can now begin driving your Audi with peace of mind knowing that the oil service light is properly reset. This will not, however, clear the Engine Warning Light or the Battery Warning Light.
Tire Pressure Warning
Resetting your tire pressure warning light will not fix underlying issues, so if your TPMS indicator keeps coming on after topping off the tires with a gauge and checking for leaks, consult your owner’s manual or a mechanic to get to the bottom of things. A lot of factors can trigger the TPMS system to warn you, from big changes in high and low temperatures to the possibility that one or more of the sensors have become faulty.
Generally, the TPMS system will send a signal to your car’s computer whenever a single tire drops 25% below the recommended pressure levels. The light on the dashboard will then turn on and an audible alert may be triggered to let you know the pressure in the tire is low. This is a safety feature to prevent you from driving with under-inflated tires, which can cause a range of unwanted outcomes. The good news is that you can reset this indicator manually.
Battery Warning
The battery light in your Audi A4 can come on for a variety of reasons. It can be a warning that the battery needs to be charged. It can also indicate a malfunction in one of the vehicle’s safety systems. If this happens, it is important to have it checked out by an Audi dealer as soon as possible.
Another reason that this light may turn on is if there are too many accessories connected to the battery. This can draw too much power and cause the battery to lose its charge. When this happens, it is important to turn off the radio and air conditioner so that the battery has a chance to recharge.
The battery monitor system can also trigger this light if you have replaced the battery or disconnected it during repairs. This can happen if the new battery has a different Ah value than the original one. It is important to reset the battery monitor system using a scan tool after replacing a battery.
Engine Warning
If the check engine light turns on in your Audi A4 it can mean a wide variety of issues ranging from something as simple as a loose gas cap to something more serious such as a vacuum leak. The good news is that the light will often turn off if the issue or code that turned it on is fixed.
For example, a loose gas cap may allow fuel vapors to escape reducing your fuel efficiency and producing harmful emissions. In most cases simply tightening the gas cap can resolve this.
Other problems can be more serious and require immediate attention to avoid damage to expensive engine components. For instance, if the engine management light is flashing your Audi Bellevue commute should be serviced immediately to prevent further damage. This may indicate an issue with the oxygen sensor, diesel particulate filter or mass airflow sensor. The spark plugs might also need to be replaced as they can burn out over time.