The 2012 Mercedes-Benz ML63 AMG is a performance SUV that demands high-quality components to maintain its handling, comfort, and safety. When suspension parts wear out, choosing the right replacements is critical. OEM (Original Equipment Manufacturer) parts are built to the same specifications as the parts that came with your vehicle. This article explains why OEM suspension parts are the best choice for your 2012 ML63, common issues to watch for, and how to purchase the right components.
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Front Right Air Suspension Strut w ADS Compatible with Mercedes-Benz W166 ML350 ML400 ML550 ML63 AMG
Understanding OEM Suspension Parts for Your 2012 ML63
What Are OEM Parts?
OEM stands for Original Equipment Manufacturer. These parts are made by the same company that supplied the components to Mercedes-Benz during production. For your 2012 ML63, OEM suspension parts are identical in design, materials, and performance to the factory-installed parts. Aftermarket parts, on the other hand, are produced by third-party companies and may vary in quality and fit.
Why OEM Matters for the ML63’s Suspension
The 2012 ML63 is equipped with the AIRMATIC air suspension system with Adaptive Damping System (ADS). This setup is engineered for a perfect balance of comfort and sporty handling. OEM parts ensure that the suspension operates as designed. Using non-OEM components can lead to uneven ride height, poor damping, premature wear, and even safety issues.
Common Suspension Issues in the 2012 Mercedes ML63
Air Suspension System (AIRMATIC)
The AIRMATIC system uses air struts and a compressor to maintain ride height and adjust damping. Common problems include air leaks from struts or lines, compressor failure, and ride height sensor malfunctions. OEM air struts are built with high-quality seals and materials that match the original durability.
Control Arms and Bushings
The front and rear control arms connect the wheels to the chassis. The bushings in these arms wear over time, causing clunking noises, vibrations, and uneven tire wear. OEM control arms come with bushings pressed in and are designed to last longer than many aftermarket options.
Struts and Shocks
The ML63 uses specialized struts that incorporate both the spring and damper in the front, and separate shocks in the rear. OEM units are calibrated specifically for the ML63’s weight and performance characteristics. Aftermarket shocks may not provide the same damping curve, leading to a harsh or bouncy ride.
Sway Bar Links
Sway bar links (stabilizer links) connect the sway bar to the control arms. They wear out from road salt and constant movement, causing rattling and reduced cornering stability. OEM links use premium ball joints and hardware for a tight fit and long life.
Benefits of Choosing OEM Over Aftermarket
Exact Fit and Performance
OEM parts bolt on without modifications. The bushings, ball joints, and mounting points match the factory specifications. This ensures that your ML63’s suspension geometry remains correct, preventing alignment issues and uneven tire wear.
Warranty Considerations
If your vehicle is still under an extended warranty or you plan to sell it, OEM parts help maintain compliance. Many aftermarket parts do not meet Mercedes-Benz standards and can void coverage for suspension-related claims.
Longevity and Reliability
OEM parts are tested to the same rigorous standards as the originals. They typically last as long as the factory parts, whereas budget aftermarket components often fail sooner, especially under the ML63’s high-performance demands.
How to Identify and Purchase Genuine OEM Parts
Part Numbers and VIN
To ensure you get the correct part, use your vehicle’s 17-character VIN. Mercedes-Benz parts catalog uses this to identify the exact suspension components for your 2012 ML63. OEM parts have a specific part number, such as for the front left air strut (1663200113) or lower control arm (1663300501). Always verify the number with a dealer or trusted parts specialist.
Authorized Dealers vs. Online OEM Retailers
You can purchase OEM suspension parts from a Mercedes-Benz dealership, but prices are often higher. Many online retailers specialize in genuine factory parts at discounted prices. Look for retailers that clearly state “Genuine Mercedes-Benz” and have good return policies. Avoid sellers that use phrases like “OEM quality” but are not actual Mercedes parts.
Avoiding Counterfeit Parts
Counterfeit suspension parts are a serious safety risk. They often use low-grade steel, cheap bushings, and incorrect seals. Buy from reputable sources and check the packaging for holograms or official Mercedes-Benz branding. If a price seems too good to be true, it probably is.
Cost Considerations for OEM Suspension Parts
Typical Price Ranges
OEM suspension parts for the 2012 ML63 command a premium. A front air strut can cost $800–$1,200, a lower control arm $200–$400, and a sway bar link $50–$100. While aftermarket parts may be 30–50% cheaper, the trade-off is often reduced durability and performance.
Labor Costs and Installation
Replacing suspension components on the ML63 requires specialized tools and knowledge, especially for the air system. A professional mechanic may charge $150–$250 per hour, with total labor for a strut replacement around $300–$500. Factor this into your budget when deciding between OEM and aftermarket.
Final Recommendation: Choosing OEM for Your ML63
For owners of the 2012 Mercedes ML63 AMG, OEM suspension parts are the safest, most reliable choice. They preserve the vehicle’s intended ride quality, handling, and safety. While the upfront cost is higher, the longevity and peace of mind outweigh the savings from aftermarket alternatives. If your ML63 needs suspension repairs, invest in genuine OEM parts and have them installed by a qualified mechanic familiar with Mercedes-Benz vehicles. Your SUV will reward you with many more miles of confident driving.