The BMW 520d has long been a popular choice for those seeking a blend of performance, fuel efficiency, and luxury in the executive saloon segment. However, not all model years are created equal. This guide will navigate you through the various iterations of the 520d, highlighting the best years to buy and which ones to potentially avoid, ensuring you make an informed decision in 2024.
Understanding the nuances of each generation, common problems, and improvements made over time is crucial when choosing a used BMW 520d. This article aims to provide comprehensive information to help you find the perfect model that suits your needs and budget.
| Generation & Model Year | Key Features & Strengths | Potential Issues & Weaknesses |
|---|---|---|
| E60/E61 (2007-2010) | Facelift models (LCI) offer improved reliability, updated styling, and enhanced technology. Generally more affordable than later generations. Renowned for its responsive handling and comfortable ride. | Earlier models (2003-2007) are prone to turbocharger failures, swirl flap issues, and electrical gremlins. High mileage examples may require significant maintenance. The pre-facelift models lacked some of the refinement of later versions. |
| F10/F11 (2014-2016) | Late-model F10s benefit from BMW's EfficientDynamics technology, resulting in improved fuel economy and lower emissions. Generally considered a reliable generation, offering a good balance of performance and comfort. | Potential for timing chain issues, particularly in earlier F10 models. Diesel Particulate Filter (DPF) problems can occur if the car is primarily used for short journeys. Some owners have reported issues with the EGR cooler. |
| G30/G31 (2017-Present) | The G30 generation offers a significantly more modern and technologically advanced experience. Improved engine performance, refined interior, and advanced driver-assistance systems. Generally very reliable. | Potential for software glitches and issues with the iDrive system. Early models may experience some minor build quality issues. More expensive to maintain than older generations. |
Detailed Explanations
E60/E61 (2007-2010): Facelift Models
The E60/E61 generation, produced from 2003 to 2010, represents a significant step forward in BMW's 5 Series lineage. Specifically, the facelifted (LCI - Life Cycle Impulse) models from 2007 onwards are highly recommended. These versions benefited from improved engine designs, addressing many of the reliability concerns associated with the earlier models. The updated styling also gave them a more contemporary look. While still potentially susceptible to high-mileage wear and tear, the 2007-2010 E60/E61 520d offers a compelling entry point into BMW ownership without breaking the bank.
E60/E61 (2003-2007): Potential Issues
The pre-facelift E60/E61 520d models (2003-2007) are known for a higher incidence of mechanical issues. Turbocharger failures were a common complaint, often stemming from oil starvation or excessive wear. Swirl flap issues, where the flaps within the intake manifold break and enter the engine, causing significant damage, were also prevalent. Electrical gremlins, ranging from sensor malfunctions to more complex issues with the iDrive system, were also reported. While these models are more affordable, the potential repair costs can quickly outweigh the initial savings.
F10/F11 (2014-2016): EfficientDynamics and Reliability
The F10/F11 generation (2010-2017) marked a further refinement of the 5 Series. The later models, particularly those produced from 2014 to 2016, are considered among the most reliable. These benefited from BMW's EfficientDynamics technology, which optimized engine performance and reduced fuel consumption. The F10 520d offers a comfortable ride, responsive handling, and a well-appointed interior. While not entirely immune to issues, the late-model F10s present a lower risk of major mechanical failures compared to earlier generations.
F10/F11: Timing Chain, DPF, and EGR Cooler Issues
Despite their overall reliability, the F10/F11 520d can still experience certain issues. Timing chain problems, although less frequent than in some other BMW models, can occur, particularly in earlier F10s. Regular oil changes with the correct specification oil are crucial to mitigating this risk. Diesel Particulate Filter (DPF) problems are common in diesel vehicles, especially those primarily used for short journeys where the DPF doesn't have the opportunity to regenerate fully. The Exhaust Gas Recirculation (EGR) cooler can also fail, leading to coolant leaks and potential engine damage.
G30/G31 (2017-Present): Modern Technology and Refinement
The G30/G31 generation (2017-present) represents the pinnacle of the 5 Series evolution. These models boast cutting-edge technology, including advanced driver-assistance systems, a refined interior, and improved engine performance. The G30 520d offers a significantly more modern driving experience compared to its predecessors. While generally very reliable, some early models may experience minor build quality issues or software glitches.
G30/G31: Software Glitches and Maintenance Costs
While the G30/G31 520d is generally reliable, potential buyers should be aware of a few potential issues. Software glitches, particularly affecting the iDrive system, have been reported by some owners. These issues can range from minor annoyances to more significant problems affecting the car's functionality. As a more technologically advanced vehicle, the G30/G31 also tends to be more expensive to maintain than older generations. Replacement parts and labor costs can be higher, so it's essential to factor this into the overall cost of ownership.
Frequently Asked Questions
Which BMW 520d generation is the most reliable?
The G30/G31 generation (2017-present) is generally considered the most reliable, followed by the late-model F10/F11 (2014-2016).
What are the common problems with the E60 520d?
Common issues include turbocharger failures, swirl flap problems, and electrical gremlins, particularly in pre-facelift models.
Is the F10 520d a good car to buy used?
Yes, especially the later models (2014-2016), which offer a good balance of performance, comfort, and reliability.
What should I look for when buying a used BMW 520d?
Check the service history, look for signs of timing chain issues, and ensure the DPF is functioning correctly. A pre-purchase inspection by a qualified mechanic is highly recommended.
Are BMW 520d models expensive to maintain?
Maintenance costs can be higher compared to some other vehicles, particularly for newer models with more advanced technology. Regular servicing and preventative maintenance are crucial.
Conclusion
Choosing the best year for a BMW 520d depends on your budget and priorities. The G30/G31 generation offers the most modern features and reliability, while the late-model F10/F11 provides a good balance of performance and affordability. While the E60/E61 generation can be a tempting option due to its lower price, potential buyers should be aware of the increased risk of mechanical issues. Thorough research, a pre-purchase inspection, and careful consideration of your needs will ensure you find the perfect BMW 520d for your needs.