The Best Years For Mercedes Benz E 550 And Some To Avoid

The Mercedes-Benz E-Class is a cornerstone of luxury sedans, and the E-550 variant offers a compelling blend of performance and sophistication. Choosing the right year can significantly impact your ownership experience, avoiding potential pitfalls and maximizing enjoyment. This guide provides a detailed look at the best and worst years for the E-550, helping you make an informed decision.

E-550 Model Years Overview

Detailed Explanations

2007-2009: 5.5L Naturally Aspirated V8

These model years feature the robust 5.5-liter naturally aspirated V8 (M273 engine). This engine is known for its relative simplicity and reliability, offering a good balance of power and dependability compared to later turbocharged models. However, these are older cars, so maintenance is crucial. The pre-facelift design is a matter of personal preference; some prefer it over the later models. One common area of concern is the Airmatic suspension, which, while providing a luxurious ride, can require expensive repairs as the car ages.

2010-2011: 5.5L Naturally Aspirated V8

These years also use the 5.5-liter naturally aspirated V8 (M273 engine), inheriting its reliability. The key difference is the facelifted design, both inside and out. The interior received updates that improved the overall feel and appearance. Like the 2007-2009 models, the Airmatic suspension remains a potential maintenance item to watch out for. These models are a good choice for those prioritizing a naturally aspirated engine with a more modern aesthetic.

2012-2017: 4.7L Twin-Turbo V8

From 2012 onwards, the E-550 received a significant upgrade with the introduction of the 4.7-liter twin-turbocharged V8 (M278 engine). This engine offers substantially more power and torque compared to the naturally aspirated V8s, resulting in quicker acceleration and improved overall performance. Despite the increased power, the twin-turbo engine also delivered better fuel economy. However, with increased complexity comes increased potential for problems. Turbochargers can be prone to issues, and the electronics are more advanced, potentially leading to more complex and costly repairs. Despite the potential issues, many consider this engine to be the best offering for the E-550, if well-maintained.

Common Problems and Considerations

• Airmatic Suspension: The Airmatic air suspension system, while providing a smooth ride, is a common source of problems, especially in older models. Components like the air struts, compressor, and valve block can fail, leading to expensive repairs.
• Engine Mounts: Engine mounts wear out over time, leading to increased vibrations and noise. This is a relatively common issue in older E-550s.
• Oil Leaks: Oil leaks can occur from various locations, including valve cover gaskets, oil filter housing, and rear main seal. Regular inspections are crucial to prevent more significant problems.
• Electrical Issues: As with any luxury car, the E-550 has a complex electrical system. Issues can range from malfunctioning sensors to problems with the infotainment system.
• Turbocharger Issues (2012-2017): The twin-turbocharged V8 is generally reliable, but turbocharger failures can occur, especially with improper maintenance or aggressive driving.
• Timing Chain Tensioner (M273 Engine): Although not as common as in earlier Mercedes engines, the timing chain tensioner on the M273 engine can wear or fail, leading to timing chain rattle and potential engine damage.
• Fuel Injectors (M278 Engine): Fuel injectors on the M278 engine can sometimes experience clogging or failure, leading to rough running or misfires.
• Transmission Issues: While generally reliable, the 7-speed automatic transmission (7G-Tronic) can sometimes experience issues such as rough shifting or slipping, especially in higher-mileage vehicles. Regular transmission fluid changes are essential.

Factors to Consider When Choosing an E-550

• Budget: Your budget will significantly influence the model year you can afford. Newer models will generally command a higher price.
• Maintenance History: A well-maintained E-550 is always a better choice, regardless of the model year. Look for vehicles with complete service records.
• Desired Performance: If you prioritize performance, the 2012-2017 models with the twin-turbo V8 offer a significant advantage.
• Reliability Concerns: If you prioritize reliability and are willing to sacrifice some performance, the 2007-2011 models with the naturally aspirated V8 might be a better choice.
• Features and Technology: Newer models will have more advanced features and technology.
• Personal Preferences: Ultimately, the best E-550 for you will depend on your personal preferences and priorities.

Tips for Buying a Used E-550

• Get a Pre-Purchase Inspection (PPI): A PPI by a qualified Mercedes-Benz mechanic is essential to identify any potential problems before you buy.
• Check the Service History: Review the service history carefully to ensure the car has been properly maintained.
• Test Drive Thoroughly: Test drive the car in various conditions to check for any issues with the engine, transmission, suspension, and brakes.
• Check for Recalls: Verify that all applicable recalls have been performed.
• Negotiate the Price: Be prepared to negotiate the price based on the car's condition, mileage, and service history.
• Consider an Extended Warranty: An extended warranty can provide peace of mind, especially for older models with potential maintenance issues.
• Inspect the Airmatic Suspension: Pay close attention to the Airmatic suspension during the test drive. Listen for any unusual noises and check for signs of leaks.
• Check the Electronics: Test all the electronic features, including the infotainment system, navigation, and climate control.
• Look for Rust: Inspect the car for rust, especially in areas prone to corrosion, such as the wheel wells and undercarriage.

Frequently Asked Questions

• Which E-550 year is the most reliable? The 2007-2011 models with the naturally aspirated 5.5L V8 are generally considered more reliable due to their simpler design. However, proper maintenance is key for any year.

• Is the Airmatic suspension a major problem? It can be. The Airmatic suspension is known to be a potential source of expensive repairs as the car ages, particularly in older models.

• Are the turbochargers on the 2012-2017 models reliable? They can be if properly maintained. Regular oil changes and avoiding aggressive driving can help prolong their lifespan.

• How often should I change the oil on an E-550? Follow Mercedes-Benz's recommended oil change intervals, typically every 10,000 miles or once a year, using synthetic oil.

• What is the average lifespan of an E-550? With proper maintenance, an E-550 can easily last for 200,000 miles or more.

• Are parts expensive for the E-550? Yes, parts for Mercedes-Benz vehicles can be more expensive than those for domestic or Japanese brands.

• Is it worth buying an E-550 with high mileage? It depends on the car's condition and maintenance history. A well-maintained high-mileage E-550 can be a good value.

• Should I buy a pre-facelift or facelift E-550? This is a matter of personal preference. The facelifted models (2010-2011) have a more modern design.

• What are the maintenance costs like for an E-550? Maintenance costs can be higher than those for non-luxury cars, especially as the car ages. Budget accordingly.

• Is the E-550 a good daily driver? Yes, the E-550 is a comfortable and capable daily driver, offering a good balance of performance and luxury.

Conclusion

Choosing the best year for a Mercedes-Benz E-550 depends on your individual needs and preferences. While the 2007-2011 models offer simpler reliability, the 2012-2017 variants boast superior performance. Thorough research and a pre-purchase inspection are crucial to ensure you make a sound investment and avoid potential headaches down the road.