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Mercedes Benz Mercedes Benz W212 (E Class)

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Mercedes-Benz W212 E-Class: A Comprehensive Guide

The Mercedes-Benz W212 E-Class is a mid-size luxury car that was produced from 2009 to 2016. As a staple of the Mercedes-Benz lineup, the E-Class has long been synonymous with comfort, safety, and German engineering. The W212 generation offered a broad range of body styles, engine options, and technological advancements, solidifying its position as a leader in its class.

History

The E-Class nameplate dates back to the mid-20th century, with earlier models often referred to by their chassis codes. The W212 continued the E-Class tradition of providing a refined driving experience with a focus on both luxury and performance. It represented a significant step forward in design and technology compared to its predecessor, the W211.

Generations

The W212 E-Class can be broken down into two main phases:

  • Pre-Facelift (2009-2013): This initial iteration featured the "twin headlamp" design, a hallmark of the W212. Key features included:
    • Available in Sedan (W212), Wagon (S212), Coupe (C207), and Convertible (A207) body styles.
    • Engine options ranged from fuel-efficient four-cylinder engines to powerful V8s, including AMG variants.
    • Introduced features like Attention Assist, which monitors driver behavior for signs of drowsiness.
  • Facelift (2013-2016): The facelifted W212 brought a more streamlined and modern appearance, abandoning the twin headlamp design for a single unit. Other notable changes included:
    • Revised front and rear fascias.
    • Updated interior with improved materials and technology.
    • Introduction of new safety features like Collision Prevention Assist PLUS.
    • Enhanced engine options with increased efficiency and performance.

Reliability & Common Issues

The W212 E-Class is generally considered a reliable vehicle, but like any car, it's prone to certain issues. Thorough maintenance and careful inspection are crucial for long-term ownership. Here's a breakdown of common problems:

  • Engine Oil Leaks: Specifically, leaks from the valve cover gaskets, oil filter housing, and rear main seal are fairly common, particularly in higher mileage examples. Regular checks and prompt repairs are essential to prevent more serious engine damage.
  • Timing Chain Issues (M271 Engines): The M271 four-cylinder engine, found in some early W212 models (particularly the E250), can suffer from timing chain stretch or failure. Listen for rattling noises upon startup, and be sure to check service records for any previous timing chain replacements. A failure can be catastrophic and very expensive.
  • Air Suspension Problems (Airmatic): Models equipped with Airmatic air suspension can experience leaks in the air struts or compressor failures. Symptoms include a sagging vehicle or uneven ride height. Repair costs can be significant. Thoroughly inspect the system for leaks and listen for the compressor running excessively.
  • Fuel Injector Issues (CGI Engines): Certain CGI (Charged Gasoline Injection) engines, mainly the M271 CGI, can develop fuel injector problems. Symptoms include rough idling, misfires, and poor fuel economy. Cleaning or replacing the injectors may be necessary.
  • Transmission Issues: While generally robust, the 7G-Tronic transmission can experience issues with the valve body or torque converter, especially in pre-facelift models. Ensure smooth shifting during a test drive and listen for any unusual noises. Regular transmission fluid changes are crucial.
  • Electrical Issues: The W212, like many modern cars, relies heavily on electronics. Common issues include malfunctioning sensors, problems with the COMAND infotainment system, and issues with the parking sensors. Have the car scanned with a diagnostic tool to identify any potential electrical problems.
  • Rust: While Mercedes-Benz improved its rustproofing over earlier models, rust can still be a concern, especially in areas with harsh winters and road salt. Pay close attention to the lower body panels, wheel arches, and undercarriage.
  • Harmonic Balancer (M272 and M273 V6/V8): The harmonic balancer, also known as the crank pulley, can separate on the M272 and M273 engines (found in models like the E350 and E550). This can lead to vibrations and potentially damage the engine. Inspect the balancer for any signs of cracking or separation.

Important Note: Always obtain a pre-purchase inspection from a qualified Mercedes-Benz mechanic before buying any W212 E-Class. This inspection can uncover potential problems that may not be readily apparent.

Driving Experience

The Mercedes-Benz W212 E-Class offers a blend of comfort, refinement, and driving dynamics. The driving experience varies depending on the engine and suspension configuration.

  • Comfort: The W212 excels in providing a comfortable and quiet ride, making it an excellent choice for long journeys. The seats are supportive, and the cabin is well-insulated from road noise.
  • Handling: The handling is generally precise and predictable, although some may find it slightly less sporty than competitors like the BMW 5 Series. Models equipped with the optional sport suspension offer a more engaging driving experience.
  • Performance: Engine options range from fuel-efficient four-cylinder diesels to powerful V8s, providing a wide spectrum of performance. The AMG models offer exhilarating acceleration and handling.
  • Pros:
    • Comfortable and refined ride.
    • Wide range of engine options.
    • Available in multiple body styles.
    • Advanced safety features.
  • Cons:
    • Can be expensive to maintain.
    • Some models prone to specific issues (timing chain, air suspension).
    • Infotainment system can feel dated compared to newer cars (especially pre-facelift).

Buying Advice

When purchasing a W212 E-Class, consider the following:

  • Years to Look For: The facelifted models (2013-2016) are generally preferred due to their updated styling, improved technology, and enhanced engine options. The later years (2015-2016) are often considered the most reliable within the W212 range.
  • Years to Avoid (Potentially): While not necessarily "bad," pre-facelift models with the M271 four-cylinder engine should be approached with caution due to potential timing chain issues. Also, any model with extensive rust should be avoided.
  • Engine Choice: The E350 (V6) and E550 (V8) offer a good balance of performance and reliability. The diesel models (E250 Bluetec, E350 Bluetec) are excellent for fuel economy but may require more specialized maintenance.
  • Maintenance Records: Thorough maintenance records are crucial. Look for evidence of regular oil changes, transmission fluid changes, and any major repairs that have been performed.
  • Pre-Purchase Inspection: As mentioned earlier, a pre-purchase inspection by a qualified Mercedes-Benz mechanic is essential.
  • Consider Certified Pre-Owned (CPO): Buying a CPO vehicle from a Mercedes-Benz dealer offers additional peace of mind with an extended warranty and thorough inspection.
  • Check for Recalls: Verify that any applicable recalls have been addressed on the vehicle. You can check the VIN on the National Highway Traffic Safety Administration (NHTSA) website.

By carefully considering these factors, you can find a W212 E-Class that provides years of reliable and enjoyable driving.

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