Tesla rarely emphasizes specific model years, suggesting that vehicles across years are largely the same. However, subtle production changes, particularly in the onboard computer—the Media Control Unit (MCU)—make a significant difference. The MCU has evolved through three generations: MCU 1, introduced in 2012, is now outdated; MCU 2, from 2018, improved performance but lacks an upgrade path; and MCU 3, launched in 2021, offers advanced features. As Tesla introduces new models, the anticipation for MCU 4 grows, with questions about future processor suppliers.
At Tesla, discussions about the specific model year of vehicles are quite rare. A Tesla Model Y from 2022, 2023, or 2024 is generally perceived as being similar; at least, that’s the impression the company aims to convey, suggesting that the ideal time to purchase is always now.
However, the truth is a bit more nuanced. Tesla frequently makes subtle modifications on the production line, which can include anything from new engine configurations to redesigned suspensions and enhanced air conditioning systems. Among these changes, one stands out significantly: the onboard computer.
Understanding Tesla’s Onboard Computer Generations
The onboard computer, referred to as the Media Control Unit (MCU), plays a vital role in the infotainment experience. This isn’t just about listening to music; it’s the heart and soul of what defines a Tesla vehicle. Over the years, the MCU has evolved through three prominent generations, each representing a shift in technology and performance.
MCU Generations: A Closer Look
The first generation, MCU 1, was introduced in 2012, powered by NVIDIA’s Tegra 3 chip. During this period, only the Model S and Model X were in production, with no sign of the Model 3, Model Y, or Cybertruck. Although MCU 1 served Tesla’s flagship models until 2018, it is now considered outdated, with recent software updates no longer supported, aside from essential security patches. Tesla offers a hardware upgrade to a more modern infotainment system for those who wish to enhance their experience, costing between €1,550 and €2,000.
Next came the MCU 2 in 2018, which was powered by an Intel Atom chip. This upgrade provided notable enhancements, including better responsiveness and new features like an improved web browser and theater mode. The MCU 2 was the peak of Tesla’s technology until 2022, but unfortunately, no upgrade path to the MCU 3 exists for current MCU 2 owners.
The latest iteration, MCU 3, made its debut at the end of 2021, utilizing AMD’s Ryzen processor. This powerful upgrade is now standard across Tesla’s entire lineup, including the Cybertruck and Model Y. The MCU 3 offers a performance level comparable to modern gaming consoles, showcasing enhanced user interfaces, faster camera displays, and improved visualization of the surroundings, including details like 3D parking views and various traffic signs.
It’s clear that the capabilities of MCUs 1, 2, and 3 differ significantly, with drivers transitioning between them readily noticing these changes. The MCU 1 is now relegated to a state where it only receives security updates, while Tesla continues to support the MCU 2. Key differences in features and fluidity mark the transition from MCU 2 to MCU 3.
If you’re unsure which MCU version your Tesla has, it’s easy to check: navigate to “Controls” > “Software” > “Other vehicle information.”
The Future of Tesla’s Onboard Computers
With the recent introduction of new models like the Cybertruck and the upcoming Cybercab, many are left wondering if the MCU 3 is nearing the end of its lifespan and if a new version is on the horizon. It has been over three years since MCU 3 entered production, and while its performance remains robust, hardware updates could be closer than anticipated.
During the launch of MCU 3, MCU 2 had already begun showing signs of obsolescence, making it tough for consumers to invest in a vehicle with an outdated onboard computer. Thus, it’s in Tesla’s best interest to introduce MCU 4 swiftly, ensuring customer satisfaction while maintaining support for software updates.
The question remains: which company will deliver a more powerful processor for future Teslas? Will it be NVIDIA, Intel, AMD, or perhaps a new competitor like Samsung or Qualcomm? It’s even possible that Tesla could follow in Apple’s footsteps and develop its own chips tailored to specific needs. Only time will reveal what the MCU 4 will entail.
It’s important to note that the MCU should not be confused with the HW (Hardware), which is responsible for semi-autonomous driving capabilities. Currently, we are at HW4.