The Mercedes-Benz GLS450 is a luxurious and spacious SUV, offering a comfortable ride and impressive features. Choosing the right year model is crucial to ensure a reliable and enjoyable ownership experience. This guide will provide a comprehensive overview of the best GLS450 years and some to avoid, helping you make an informed decision.

Here's a detailed breakdown of the GLS450's history, focusing on reliability, features, and potential problem areas to help you find the perfect model for your needs.

Year Model Key Highlights Potential Issues / Considerations
2017 (First Generation Facelift) Refreshed design, updated technology, improved COMAND system Potential for early adoption issues with the updated technology; check for transmission smoothness. Air suspension issues are possible with age.
2018 (First Generation Facelift) Continued improvements, refined interior, enhanced safety features Similar to 2017, potential for air suspension and electronic issues. Thorough inspection recommended.
2019 (First Generation Facelift) Final year of the first-generation facelift; generally reliable Potential for accumulated wear and tear due to age. Ensure all scheduled maintenance has been performed.
2020 (Second Generation) Complete redesign, more spacious interior, advanced MBUX infotainment system, improved ride quality First year of a new generation; potential for initial production hiccups. Software glitches in MBUX system were reported.
2021 (Second Generation) Minor updates, improved driver-assistance systems, enhanced comfort Some reports of electrical issues and MBUX system bugs. Check for software updates.
2022 (Second Generation) Increased standard features, refined engine performance, more luxurious appointments Continued reports of MBUX issues, though generally less frequent than 2020 and 2021. Inspect for proper functionality of all electronic systems.
2023 (Second Generation) Further refinements, potential for feature updates, improved reliability Relatively new; fewer reported issues compared to earlier second-generation models. Higher price point compared to older models.
2024 (Second Generation Facelift - Expected) Expected facelift with updated styling, improved technology, and potentially revised powertrains Wait for reviews and reliability data to emerge before making a purchase. First year of the facelift, potential for new model year issues.

Detailed Explanations

2017 (First Generation Facelift): This model year marked a significant refresh for the first-generation GLS450, previously known as the GL. It brought updated styling, improved technology, and a more refined COMAND infotainment system. However, being one of the first years with these updates, it's crucial to check for potential early adoption issues with the new technology. Pay close attention to the smoothness of the transmission, as some owners have reported issues. Air suspension is also a common maintenance item on older models.

2018 (First Generation Facelift): Building upon the 2017 model, the 2018 GLS450 continued to refine its interior and enhance its safety features. While generally reliable, it's still important to be aware of potential issues related to the air suspension and electronics, which can arise with age. A thorough inspection by a qualified mechanic is highly recommended before purchasing a 2018 GLS450.

2019 (First Generation Facelift): As the final year of the first-generation facelift, the 2019 GLS450 is generally considered a reliable option. However, due to its age, potential buyers should consider accumulated wear and tear. Ensuring that all scheduled maintenance has been performed according to Mercedes-Benz's recommendations is crucial for long-term reliability.

2020 (Second Generation): The 2020 GLS450 marked a complete redesign, ushering in the second generation of the SUV. This model boasts a more spacious interior, the advanced MBUX infotainment system, and improved ride quality. Being the first year of a new generation, it's important to note that there might be potential for initial production hiccups. Some owners reported software glitches in the MBUX system, so it's worth checking the system's functionality during a test drive.

2021 (Second Generation): The 2021 GLS450 brought minor updates, improved driver-assistance systems, and enhanced comfort. While the MBUX system was refined, some reports of electrical issues and MBUX system bugs still persisted. Checking for available software updates from Mercedes-Benz is a good idea to address any known issues.

2022 (Second Generation): The 2022 GLS450 saw an increase in standard features, refined engine performance, and more luxurious appointments. While the MBUX issues were less frequent compared to the 2020 and 2021 models, it's still advisable to inspect for proper functionality of all electronic systems. This includes the MBUX system, driver-assistance features, and other electronic components.

2023 (Second Generation): The 2023 GLS450 features further refinements and potential feature updates, aiming for improved reliability. Being a relatively new model, there are fewer reported issues compared to the earlier second-generation models. However, it's important to consider the higher price point compared to older GLS450 models.

2024 (Second Generation Facelift - Expected): The 2024 GLS450 is expected to receive a facelift with updated styling, improved technology, and potentially revised powertrains. As it will be the first year of the facelifted model, it's wise to wait for reviews and reliability data to emerge before making a purchase. New model year issues can sometimes arise, so patience is key.

Frequently Asked Questions

  • Which GLS450 year is the most reliable? The 2023 model is generally considered the most reliable due to its newer design and fewer reported issues. However, the 2019 model, as the last year of its generation, can also be a solid choice if properly maintained.

  • What are the most common problems with the GLS450? Common issues include air suspension problems, MBUX system glitches, and electrical issues, particularly in the earlier years of the second generation.

  • Is the MBUX system reliable in all GLS450 years? The MBUX system had more issues in the 2020 and 2021 models. Later years (2022 and 2023) have seen improvements, but it's still advisable to test the system thoroughly.

  • Are the running costs high for a GLS450? Yes, as a luxury SUV, the GLS450 has relatively high running costs, including maintenance, insurance, and fuel consumption.

  • Should I buy a first-generation GLS450? First-generation models (especially the 2017-2019 facelift) can be a good value, but they require careful inspection for age-related wear and tear, especially concerning the air suspension.

Conclusion

Choosing the best year for a Mercedes-Benz GLS450 depends on your priorities and budget. While the newer models (2022 and 2023) offer the most advanced features and improved reliability, the 2019 model can be a good value if properly maintained. Always prioritize a thorough inspection before making a purchase to ensure you're getting a reliable and enjoyable SUV.