Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
  1. Car
    2. :
  2. Audi
    3. :
  3. A3
    4. : 2020-2026 (MK 4, 8Y)

Audi A3 Years 2020-2026 (MK 4, 8Y)

Audi A3 (2020-2026 / )
How to Change the Battery in an Audi A3 Remote (and Most Audi Vehicles)
To change the battery in an Audi A3 remote (and most Audis with a "smart" key from 2023 onwards), the procedure is simple. First, extract the metal blade by …Read all…
Posted on 21 September 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Reset the MMI in an Audi A3
In today's article, you will learn how to reset the MMI radio in an Audi A3 in case of software issues or radio lock-up. To reset the radio, first, turn on the …Read all…
Posted on 9 September 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to clear the service light on an Audi A3?
This video shows how owners of the 2023 Audi A3 can independently reset the maintenance reminder. This reminder activates when approaching the scheduled …Read all…
Posted on 9 September 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Replace the Key Battery on the Audi A3
To independently replace the small battery inside your latest generation Audi A3 key, read the following guide and apply the described procedure correctly. …Read all…
Posted on 4 September 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Reset the Service Light on an Audi A3 MK4
Here we see how to reset the service light on an Audi A3 MK4 that uses the MIB3 multimedia system with a touchscreen. Turn on the instrument panel and go to …Read all…
Posted on 10 August 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
Removing the Climate Control Controls on an Audi A3
In this guide, discover the instructions to remove and replace the climate control controls on an Audi A3. First, get inside the vehicle and begin by removing …Read all…
Posted on 23 July 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Reboot the Audi MMI System
If your Audi's MMI system is lagging, freezing, or malfunctioning, a simple reboot can resolve the issue without deleting data or settings. The procedure is …Read all…
Posted on 10 July 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Change the Key Battery of an Audi A3?
Changing the remote key battery for the Audi A3 is very simple and can be done by anyone. As shown in the video, all you need is a flat tool to lever. A flat …Read all…
Posted on 4 July 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
Replacing the Key Remote Battery of the Audi A3
Briefly, here are the instructions to remove and replace the battery of the key remote for the Audi A3. First, take your remote and start by removing the …Read all…
Posted on 15 April 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
What is the Fuse Diagram for the Audi A3?
In this video, we can see where the fuse boxes are located in the Audi A3 and their respective diagrams, useful in case you need to check the fuses of a …Read all…
Posted on 12 March 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to Replace the Battery on an Audi A3
You can replace the battery on the Audi A3 by opening the bonnet to access the components inside the engine bay: here you will find the device on the right …Read all…
Posted on 24 February 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
Diagram and Positioning of Fuse Boxes in Audi A3
In this brief guide, we will look at the diagram and positioning of the fuse boxes in the Audi A3. First, open the front door of the vehicle and start removing …Read all…
Posted on 17 February 2026 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to change the battery of the 2023 Audi A3 key.
In today's article, we will see how to replace the battery of the 2023 Audi A3 key. For this operation, you will need a small flathead screwdriver and a CR2032 …Read all…
Posted on 29 December 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
Schema dei fusibili di una Audi A3
In this very brief video guide today, we can see all the fuse diagrams present in an Audi A3, the latest generation model produced from 2020 onwards. These …Read all…
Posted on 27 November 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to reset the tire warning light in the Audi A3?
In this tutorial, we will see how to reset the tire warning light on the Audi A3. This operation is extremely simple and quick, and should only be performed …Read all…
Posted on 26 November 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to change the battery of the 2024 Audi A3 key.
In today's article, we will show you how to replace the battery of the 2024 Audi A3 key. For this operation, you will need a small flathead screwdriver. First, …Read all…
Posted on 25 November 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to reset the tire pressure warning light in the Audi A3?
In this tutorial, we can see how to reset the tire pressure warning light in the Audi A3, an extremely simple and quick operation, to be done only once the …Read all…
Posted on 12 September 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
Where is the fuse box of the Audi A3 2024 located?
In the following guide addressed to all of you who own the new Audi A3 (year 2024), we will explain the various steps you need to take to find the box …Read all…
Posted on 20 July 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to turn off the air conditioning in the Audi A3
Today we will explain how to deactivate the air conditioning system on an Audi A3 model 8Y. To perform this simple operation, we need to press the off button …Read all…
Posted on 11 July 2025 by ScegliAuto
Audi A3 (2020-2026 / 8Y, MK 4)
How to reset the tire pressure sensor on an Audi A3?
To reset the tire pressure warning light on an Audi A3, turn on the instrument panel without starting the engine. Use the central touchscreen display to access …Read all…
Posted on 10 July 2025 by ScegliAuto
Cigarette lighter (2) Airbag (9) Alternator (6) Speaker (1) Shocks (1) Antenna (1) Air conditioning (2) Car stereo (17) Battery (23) Air vents (11) Grille (1) Transmission (2) Spark plugs (2) Glow plugs (4) Convertible top (1) Body (12) Glove compartment (6) Control unit (4) Key (88) Trunk lock (1) Timing belt (15) V-belt (4) Air conditioner (10) A/C controls (5) Onboard computer (12) Checks and maintenance (56) Throttle body (2) Dashboard (10) Shifter boot (1) Bearing (4) MAF sensor (1) Differential (2) Brake rotors (1) Rear bench seat (2) Side marker light (1) Headlight (27) Tail light (19) Fog lights (7) Diesel particulate filter (1) Air filter (13) Cabin air filter (21) Fuel filter (2) Diesel fuel filter (7) Oil filter (1) Parking brake (1) Clutch (4) Grille (3) Fuel injectors (1) Window switch (2) Accessory kit (4) Xenon headlight kit (1) Light bulb (9) Side marker bulb (5) Headlight bulb (40) Tail light bulb (13) Interior dome light bulb (6) (4) Handle (8) Exhaust muffler (1) Trim cover (1) Engine (13) Power window motor (4) Starter motor (6) Transmission fluid (3) Engine oil (10) Clock (15) Door trim panel (32) Front bumper (16) Rear bumper (10) Brake pads (3) Hydraulic pistons (1) Shift knob (11) Pump (2) Fuel pump (6) Car door (10) Push button (2) Instrument cluster (9) Radiator (2) Heater core (8) Wheel (5) Fuse box (70) Seat (12) Crankshaft position sensor (1) Engine coolant temperature sensor (1) Door lock (7) Brake system (1) Side mirror (13) Rearview mirror (3) AdBlue warning light (2) Warning light – error code (41) (41) Tire pressure warning light (5) Service warning light (100) Manufacturer emblem (6) Engine mount (2) Fuel cap (12) Windshield wipers (13) Thermostat (4) Tie rods (1) Drivetrain (1) Center console tunnel (4) Turbocharger (3) Valve (2) EGR valve (2) Blower motor (5) Side window (4) Steering wheel (12)

See also:

How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

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