It must be understood that not every stored error code is relevant, as incorrectly measured values can also trigger a code. Therefore, a basic distinction is made between static and sporadic errors, and typically, static (permanently-occurring) errors are important for your vehicle’s functionality. On the other hand, sporadic errors are automatically deleted if they no longer occur after a certain number of driving cycles. A driving cycle is counted as one instance of switching the ignition on and off again. Even if the fault memory is read before the deletion of these faults, the warning lamp that may have been active before is no longer lit up. Is It Worth Reading the Memory Yourself? NEXAS is another company with diagnostic scanning credentials from the commercial side of the automotive industry. The brand has created the NEXAS NexLink, a Bluetooth dongle. However, this one is compatible with iOS, as well as Android and Windows. Weightier and made from more robust plastic than some of the other dongles featured here, the build quality is better, though this quality is reflected in the price. Although the device is only Windows-supported, it automatically detects the device’s ID on the scan tool, and the car’s VIN when connected to the OBD-II port, making it very easy to use. The iCarsoft CR V.20 is practical too: the 4in screen is sufficiently big, the colours are bright, and the build quality feels durable. While it’s a pricier option, if you have multiple cars in the house and you like to be hands-on, this offers great value.

This compact code scanner, VS450 OBDII EOBD, makes its way to our list for a number of reasons. It is equipped with an OEM-level diagnostic tool that is highly compatible with VW vehicles, as well as other vehicles sold worldwide. Moreover, it works for over 18 systems in the vehicle, plus it easily reads and erases codes for you. Easy setup. If it takes forever to set up the scanner, you probably won't use it to diagnose a problem early. This device from Foxwell is one of the latter, meaning that it will be useful for cars that aren’t Volkswagen as well. Let’s see what features and specs it has. Below are some of our favorite options that would be a good fit for the DIY mechanic or professional.These mandatory connections are standard across all makes and models. With the falling prices for the tech to access these fault codes and the concomitant rise of smartphones, Bluetooth connectivity and the internet, there is now a market for easy-to-use OBD-II readers suitable for the home mechanic, effectively ending the need to travel to a garage every time an engine management light appears. There are many VAG-COM VCDS scan tools available for Volkswagen, from low-cost units to expensive high-end models. Autel MAxidas DS808 is an ideal choice for anyone who is on a tight budget and wants to have a great product with exceptional features. Plus, since it is equipped with the latest automatic software, it can be used by professional technicians, as well.

Each control unit has a range of values that are considered normal. If there are deviations, an error code is generated. In most cases, the control unit can correct the error and everything runs normally again. Doors, seat belts, etc., have sensors that are activated in case of an accident. This makes the SRS deploy airbags. All this happens within a span of a second. Bottom line This software usually has full system control, so Audi and VW owners need to have the right tools for the job – and it is here that the magic of a VW or Audi scan tool truly shines. Designed and developed in partnership with one of the world’s leading vehicle diagnostic software suppliers, RACScanis the state-of-the-art OBD scanner carried by every one of our patrols. Most standard OBD2 scanners won’t be able to tell you what the computer is saying, meaning that newer cars can miss out on some of these features.

The best OBD-II scanners you can buy in 2023

The features are basic, yet they cover everything that many drivers will ever need. The diagnostic menu allows you to read and erase fault codes and view i/M Readiness codes, which relate to a vehicle’s emission control systems. The vehicle information menu displays real-time driving information, such as coolant temperature and engine speed, as well as the vehicle’s VIN number. There’s even a database of fault code numbers.

To operate the XTool code reader, vehicle owners insert it into the OBD2 port – after which it will automatically begin running diagnostics on the Audi or Volkswagen.

Why you need an OBD scanner in your toolbox

Ease of Use – This is particularly important for those who don’t have a ton of mechanical knowledge. We accounted for whether these diagnostic scanners are user-friendly and easy to understand. Overview of the Best 3 VW Scan Tool and Audi Scan Tools

LAUNCH Creader CRP123 is another airbag code reader that offers many features. It supports all 10 OBD2 modes and is quite easy to use. Some other generic scanners may not have all of the codes for Volkswagen or Audi, for example, which defeats the purpose.Here’s how such a process (a query of diagnostic data) runs internally — all in a fraction of a second!