17/09/2015
Modern vehicles are increasingly complex machines, relying heavily on sophisticated software to manage everything from engine performance and fuel efficiency to safety features and infotainment systems. Your Volkswagen is no exception. Just like your smartphone or computer, your car's software requires regular updates to ensure it operates at peak efficiency, maintains environmental compliance, and provides you with the best possible driving experience. Understanding how to check for and manage these updates is paramount for every VW owner in the UK.
Checking for Volkswagen Software Updates: The Digital Highway
Volkswagen has embraced technology to make software updates more accessible than ever, primarily through Over-the-Air (OTA) updates. The process for receiving these can vary slightly depending on your vehicle's model and year.
For newer electric vehicles (EVs) and some petrol models from Model Year 2025 onwards, the update process is designed to be largely seamless. Once you've accepted the myVW and Car-Net Terms of Service – a crucial first step – and granted consent for software downloads via your myVW app, the updates will begin to download automatically. This happens discreetly while your vehicle is in operation, meaning you don't typically need to interrupt your journey.
For all other Volkswagen vehicles whose owners have accepted the myVW and Car-Net Terms of Service, the process involves a more interactive approach. An in-vehicle message will pop up directly on your infotainment screen, prompting you to initiate each step of the update. At this point, you'll be presented with a clear choice: “Download” or “Cancel”. To proceed and begin the software download, simply select “Download”. A significant convenience is that you can safely continue to drive your vehicle during the download process. Should you turn off the ignition, the download will automatically pause, but it will seamlessly resume the next time you start your vehicle. This means that a complete download might require several vehicle trips, depending on the size of the update.
If you choose to postpone the download, selecting “Cancel” on your in-vehicle display, the system will prompt you again to initiate the download each time you start your vehicle. It's important to note that Over-the-Air (OTA) updates may only be available for a limited time. If for any reason an update becomes unavailable via OTA, or if you miss the window, you will typically be notified by mail or email if the software update becomes available through your local Volkswagen retailer. This ensures you always have a pathway to get your vehicle's software up to date.
Checking for Volkswagen Software Updates: The Workshop Connection
While OTA updates offer significant convenience, some software updates, particularly those that are more complex or involve critical systems, may still require a visit to a Volkswagen workshop. In such cases, you won't be left in the dark. Your Volkswagen retailer will directly inform you if an update is available and necessary for your vehicle. This might come in the form of a direct communication, or they may inform you during a routine service appointment.
Beyond direct contact from your retailer, Volkswagen also uses digital communication channels to keep you informed. As soon as an Over-the-Air update is planned for your specific vehicle, you will typically receive a notification via the email address you used to register your VW Connect account. Furthermore, once the software update can actually be installed in your vehicle, you will receive a message directly in your infotainment system, mirroring the process for OTA updates.
For these in-vehicle notifications and downloads to occur, several prerequisites must be met. Your vehicle must be in online mode, meaning it has an active internet connection. Crucially, the sending and receiving of vehicle data must be activated within your vehicle's privacy settings. Finally, a primary user with an active mobile online services contract must be logged into the vehicle. Ensuring these conditions are met will guarantee that you receive timely notifications and can facilitate updates when they become available.
Why Software Updates Matter: Beyond Just New Features
While many software updates bring exciting new features or performance enhancements, their importance often runs much deeper. For Volkswagen, the role of software in vehicle operation has been profoundly shaped by past challenges, particularly the Dieselgate scandal.
The Dieselgate Legacy: A Turning Point for Software
The infamous Dieselgate scandal, which came to light in 2014, revealed that Volkswagen had deliberately programmed its TDI (Turbocharged Direct Injection) diesel engines with “defeat devices.” These devices could detect when a vehicle was undergoing official emissions testing and would then alter the performance to meet regulatory standards, while on the road, the vehicles would emit nitrogen oxides (NOx) at levels far exceeding legal limits. This revelation led to massive legal settlements, recalls of hundreds of thousands of vehicles, and a significant blow to Volkswagen's reputation.
The financial repercussions were staggering, with Volkswagen committing to spend at least $25 billion in the U.S. alone for legal settlements. This crisis forced the company to fundamentally re-evaluate its approach to engine technology and, crucially, to software. As a direct consequence, Volkswagen publicly announced its decision to quit the “clean diesel” business for good, at least in the U.S., and to pivot its green efforts towards electric vehicles (EVs). This strategic shift saw the creation of Electrify America, a subsidiary tasked with investing $2 billion into brand-neutral electric-vehicle infrastructure.
The 'Fix': Software as a Solution
A significant part of addressing the Dieselgate scandal involved developing and implementing software fixes for the affected vehicles. For instance, a software update was approved for certain 2015 Gen 3 diesels, including Passats, Beetles, Golfs, Jettas, and Audi A3s equipped with 2.0-litre TDI engines. This fix involved a software update to both the engine and transmission computers.
The primary aim of this software update was to remove the defeat device code and implement a new “dosing strategy” for Diesel Exhaust Fluid (DEF). DEF is a liquid consumed by the vehicle's Selective Catalytic Reduction (SCR) system to reduce NOx emissions. The updated software ensured that the emissions system operated correctly, even if it meant a potentially higher consumption of DEF – owners were warned of up to a 14% increase depending on driving style.
Crucially, Volkswagen stated that no changes were made to other engine operating parameters, such as boost pressure, exhaust-gas recirculation scheduling, fuel-rail pressure, or injection timing. This was a key point, as it suggested that the main benefit VW gained from cheating initially was merely stretching the DEF refill interval to coincide with a 10,000-mile oil change, rather than significant performance gains.
For some of these vehicles, a second phase of the recall involved dealers fitting replacements for the entire emissions system, including new diesel-particulate filters, diesel-oxidation catalysts, and selective catalytic-reduction converters. An additional NOx sensor was also added downstream of the catalyst, allowing the emissions system to operate in an improved, closed-loop mode, further supported by another forthcoming software update. These new parts, combined with the software, were designed to ensure correct system function for at least 150,000 miles, with ongoing monitoring by regulatory bodies.
Owners of affected vehicles also benefited from an extended transferable emissions warranty: the greater of either 11 years or 162,000 miles from new, or five years or 60,000 miles from the date of the recall service.
Performance Post-Update: Dispelling Myths
A common concern among owners of affected diesel vehicles was whether the software fix would negatively impact their car's performance or fuel economy. Extensive testing, including independent analyses, sought to answer this question. For example, tests on a 2015 Passat after its software update revealed no notable performance differences compared to the car with its original, non-compliant software.
Here's a comparison of typical performance metrics before and after the software fix for a 2015 Passat 2.0-litre TDI, based on independent testing:
| Metric | Original (Dirty) Software | Updated (Clean) Software |
|---|---|---|
| Acceleration 0–60 MPH | 9.3 seconds | 9.3 seconds |
| 1/4 Mile @ MPH | 17.2 seconds @ 82 MPH | 17.2 seconds @ 82 MPH |
| 30–50 MPH, Top Gear | 5.0 seconds | 5.0 seconds |
| 50–70 MPH, Top Gear | 6.7 seconds | 6.6 seconds |
| 30–90 MPH, 4th Gear | 22.3 seconds | 22.8 seconds |
| 0–100 MPH, Standing Start | 27.1 seconds | 27.7 seconds |
As the table demonstrates, the performance figures remained remarkably consistent, indicating that the software update implemented to address the emissions issue did not detrimentally affect the vehicle's acceleration or overall driving dynamics. While there was a noted increase in DEF consumption for some models, this was a trade-off for ensuring the vehicle met its revised emissions standards.
The fixes for other generations of affected diesels, such as the Gen 2 TDIs (2012–2014 Passats), also focused on increased DEF dosing. The Gen 1 TDIs (2009–2014 Jettas, 2010–2014 Golfs, 2013–2014 Beetles, and 2010–2013 Audi A3s) presented a greater challenge as they did not use DEF. Their fix involved modifications to their NOx trap systems, which could potentially result in reduced fuel economy due to the need for periodic purging by running a rich fuel mixture. However, the overarching goal remained to bring these vehicles into compliance, maintaining their usability rather than scrapping them.
Frequently Asked Questions (FAQs)
Q: How often do Volkswagen vehicles need software updates?
A: Volkswagen vehicles receive software updates as and when they are developed and deemed necessary. There isn't a fixed schedule like monthly or quarterly. Updates might be released to improve existing features, introduce new functionalities, enhance security, or address specific technical or emissions requirements. It's best to stay vigilant for notifications via your infotainment system, email, or from your local Volkswagen retailer.
Q: Can I drive my Volkswagen while an Over-the-Air (OTA) software update is downloading?
A: Yes, for most OTA updates, you can safely drive your vehicle while the software is downloading. The download process occurs in the background and is designed not to interfere with your vehicle's operation. If you turn off the ignition, the download will simply pause and resume automatically the next time you start your vehicle.
Q: What happens if I cancel an Over-the-Air (OTA) update or miss the download window?
A: If you cancel an OTA update, or if the update is only available for a limited time and you miss that window, you will typically be prompted again to initiate the download each time you start your vehicle. However, if the OTA update period expires, Volkswagen will usually notify you by mail or email if the software update becomes available through your local Volkswagen retailer, ensuring you still have the opportunity to get your vehicle updated.
Q: Did the 'clean diesel' software fix affect the performance or fuel economy of Volkswagen TDI vehicles?
A: For many of the affected 'Gen 3' TDI vehicles, independent testing showed no notable performance differences (such as acceleration) after the software fix was applied. Fuel economy also appeared largely unaffected during steady-speed cruising. However, some models experienced an increase in Diesel Exhaust Fluid (DEF) consumption, potentially up to 14% higher, as this was part of the strategy to reduce NOx emissions to compliant levels. For older 'Gen 1' TDI models that used NOx traps, there was a potential for reduced fuel economy due to the nature of their specific fix.
Q: Is Volkswagen still focused on diesel cars in the UK?
A: Following the Dieselgate scandal, Volkswagen has significantly shifted its global strategy, particularly in major markets like the U.S. and increasingly in Europe, to focus heavily on electric vehicles (EVs). While diesel models may still be available in some markets or for specific commercial applications, the company's long-term strategic direction and investment are firmly in EV technology and associated software development.
Conclusion
In an automotive landscape increasingly defined by digital innovation, keeping your Volkswagen's software up to date is more than just a recommendation – it's a necessity. From ensuring optimal performance and efficiency to maintaining crucial emissions compliance and accessing the latest features, software updates play a pivotal role in the longevity and reliability of your vehicle. Whether it's through the convenience of the myVW app and Over-the-Air downloads or a visit to your trusted Volkswagen retailer, staying informed about available updates will help ensure your car continues to deliver the driving experience you expect, now and for years to come. Don't underestimate the power of a simple software update; it's key to unlocking your Volkswagen's full potential.
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