Mercedes-Benz Transmission Services

Mercedes-Benz automatic transmission service is a meticulous process that involves several critical steps to ensure optimal performance. This service typically includes changing the transmission fluid and replacing the filter. Recommended service intervals vary by model but generally fall within the range of 40,000 to 60,000 miles.

The procedure begins by carefully removing any underbody panels to access the transmission pan. Once exposed, the old fluid is drained thoroughly to eliminate contaminants. Next, the internal filter and pan gasket are replaced to ensure a proper seal.

Attention to detail is essential during this phase; the transmission pan is cleaned meticulously, and any metal debris is removed from the magnets, which play a crucial role in capturing particulates. After everything is cleaned and prepped, the transmission is refilled with the correct Mercedes-Benz-approved fluid. It's important to note that the color of the fill tube can often identify the specific fluid type.

Careful monitoring of the fluid temperature is vital throughout the refill process to achieve the correct level. This step ensures the transmission operates smoothly and efficiently, prolonging its lifespan and maintaining your vehicle's performance.


What's Involved in the Service

Access and Drain: The vehicle is raised and leveled, and the underbody panels are removed to expose the transmission. The old transmission fluid is then drained. 

Filter and Pan Service: The old transmission pan and filter are removed. A new pan gasket, internal filter, and other necessary parts (like the overflow plug) are installed. 

Fluid Refill: New, MB-approved transmission fluid is added using a special hand pump and adapter. The vehicle must be leveled for this step, and the fluid must be monitored for temperature to ensure proper filling. 

Final Steps: The drain plug is tightened, and the belly pans are reinstalled. 


Key Considerations

Fluid Type: Different Mercedes-Benz transmission models use different fluids, which the color of the internal overflow pipe can identify. Using the correct fluid is critical for transmission health. 

Maintenance Interval: The recommended service interval for automatic transmissions is generally between 40,000 and 60,000 miles, but it's essential to check your specific owner's manual, as driving conditions can necessitate more frequent service. 

Special Tools: A special adapter and pump are required for refilling the transmission, and a scan tool to monitor fluid temperature is also recommended. 

Secure and Test: Reinstall the drain plug, then start the vehicle and run it through all gears before checking for leaks and completing the service.

  1. Knauz Continental Autos

    409 Skokie Valley Hwy.
    Lake Bluff, IL 60044

    • Sales: (847) 235-3800
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