The Best Years For Mercedes Benz Ml350 And Some To Avoid

The Mercedes-Benz ML350, later renamed the GLE350, has been a popular luxury SUV for years, offering a blend of performance, comfort, and style. However, not all model years are created equal. This guide will delve into the best and worst years for the ML350, providing you with the information needed to make an informed purchasing decision in 2024.

ML350 Model Years: A Quick Overview

Here's a table summarizing the key considerations for various ML350 model years. This information will be explored in greater detail in the sections that follow.

Detailed Explanations

2003-2005 (W163):

These models represent the older generation of the ML350. While they may be tempting due to their lower price point, be aware that they are prone to several issues due to age and design. Rust is a significant concern, especially in areas with harsh winters. The transmission can also be problematic, and the overall build quality is not as refined as later models. While a meticulously maintained example might be acceptable, it's generally best to avoid these years unless you're a skilled mechanic comfortable with potential repairs.

2006-2011 (W164):

The W164 generation was a significant improvement over the W163, offering a more modern design and better performance. However, it's not without its own set of potential problems. The most notorious issue is the balance shaft problem, particularly affecting 2006 and 2007 models. This can lead to significant engine damage and costly repairs. Air suspension problems are also common, and can be expensive to fix. While these models are better than the earlier generation, a thorough pre-purchase inspection by a qualified mechanic is absolutely essential. Check service records meticulously for evidence of balance shaft repairs or replacements.

2012-2015 (W166):

These model years represent the sweet spot for the ML350. They offer a significant improvement in reliability compared to the W164 generation. The engine is more refined and less prone to issues, and the overall build quality is higher. Fuel economy is also improved thanks to advancements in engine technology. These models also feature more modern technology and safety features. While no car is perfect, the 2012-2015 ML350s generally offer the best balance of value, reliability, and features.

2016-2019 (GLE350 - W166 Facelift):

In 2016, Mercedes-Benz renamed the ML350 to the GLE350 as part of a broader naming strategy. These models represent a facelift of the W166 generation. They feature refreshed styling, updated technology, and continued reliability. The engine and transmission are generally very reliable, and the interior is more luxurious than previous models. However, these models command a higher price point than earlier ML350s. If your budget allows, the GLE350 (2016-2019) is an excellent choice.

Balance Shaft Issues (2006-2007 W164):

This is a critical issue to understand if you're considering a 2006 or 2007 ML350. The balance shaft is a component within the engine that helps to reduce vibrations and ensure smooth operation. In some of these early W164 models, the balance shaft was made with a softer metal that wore down prematurely. This wear can cause the engine to run rough, lose power, and eventually lead to catastrophic engine failure. The repair is expensive, often costing several thousand dollars. The engine serial number can be checked against known affected ranges to determine if the vehicle is at risk. Always ask for service records to verify if the repair has already been done.

Air Suspension Problems (W164 and W166):

The air suspension system in the ML350 provides a comfortable ride and allows for adjustable ride height. However, it is also a complex system that can be prone to problems. Common issues include leaks in the air struts, a failing air compressor, and problems with the control module. These issues can result in a sagging suspension, a rough ride, and error messages on the dashboard. Repairing the air suspension can be costly, so it's important to have it inspected thoroughly before purchasing an ML350 with this feature.

Rust (W163):

As mentioned earlier, rust is a significant concern with the older W163 generation ML350s. Inspect the undercarriage, rocker panels, and wheel wells for signs of rust. Surface rust is generally not a major concern, but deep rust that has penetrated the metal can compromise the structural integrity of the vehicle. Rust repair can be expensive and time-consuming, so it's best to avoid vehicles with significant rust damage.

Transmission Issues (W163):

The older W163 ML350s are also known for having transmission issues. Common problems include slipping gears, rough shifting, and complete transmission failure. These problems can be caused by a variety of factors, including worn clutches, valve body issues, and low fluid levels. Transmission repairs can be expensive, so it's important to have the transmission inspected by a qualified mechanic before purchasing a W163 ML350.

Fuel Economy:

Fuel economy varies depending on the model year and engine. The older W163 models typically get around 15-18 mpg in the city and 20-23 mpg on the highway. The W164 models offer slightly better fuel economy, with around 16-19 mpg in the city and 22-25 mpg on the highway. The W166 models (including the GLE350) offer the best fuel economy, with around 18-22 mpg in the city and 24-28 mpg on the highway. Keep in mind that these are estimates, and actual fuel economy may vary depending on driving conditions and habits.

Technology and Features:

The technology and features available on the ML350 vary depending on the model year and trim level. Older models may lack features like Bluetooth connectivity, navigation, and advanced safety systems. Newer models, especially the GLE350, offer a wider range of features, including a large infotainment screen, Apple CarPlay and Android Auto compatibility, and advanced driver-assistance systems like lane departure warning and blind-spot monitoring.

Maintenance Costs:

Mercedes-Benz vehicles are generally more expensive to maintain than mainstream brands. Expect to pay more for parts and labor. Regular maintenance, such as oil changes, tire rotations, and brake inspections, is essential to keep your ML350 running smoothly. It's also important to address any issues promptly to prevent them from escalating into more expensive repairs.

Frequently Asked Questions

Which ML350 year is most reliable? The 2012-2015 ML350 (W166) models are generally considered the most reliable.

What years should I avoid? Avoid the 2003-2005 (W163) models due to age and rust issues. Exercise caution with the 2006-2007 (W164) models due to the balance shaft problem.

How much does it cost to fix the balance shaft issue? The balance shaft repair can cost several thousand dollars, often between $4,000 and $6,000.

Are air suspension problems common? Yes, air suspension problems are relatively common in both the W164 and W166 generations.

What is the fuel economy like? Fuel economy varies, but the W166 models (including the GLE350) offer the best MPG, around 18-22 city and 24-28 highway.

Is a pre-purchase inspection necessary? Absolutely! A pre-purchase inspection by a qualified mechanic is crucial, especially for older models.

What should I look for during a pre-purchase inspection? Check for rust, leaks, suspension issues, and have the engine and transmission thoroughly inspected. Also, check service records for any major repairs.

Conclusion

Choosing the right Mercedes-Benz ML350 (or GLE350) requires careful consideration of the model year and its associated potential issues. The 2012-2015 ML350 and 2016-2019 GLE350 models offer the best combination of reliability, features, and value, while older models should be approached with caution and a thorough pre-purchase inspection.