Mercedes-Benz Automatic Transmission Parts
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All About Automatic Transmissions for Mercedes-Benz
The automatic transmission in your Mercedes-Benz enables shifting using a fluid coupling converter (a "torque converter," in short) added to its gearset, rather than a clutch; put simply, the converter connects the engine and transmission, allowing gear changes using fluid pressure.
Otherwise, how it works is the same. Rather than making you constantly focus on your speed, engine RPMs, and timing your gear shifts, with an auto transmission, the vehicle does all the work.
It keeps all the gears in one place, for one, in a circular structure similar to that of a solar system; there's an outer ring gear, a central gear, and two or more smaller gears that all connect together. An input shaft connects to the outer ring gear, delivering the engine's power. The smaller gears sit inside a casing that connects to an output shaft, which delivers that power to the drivetrain and wheels.
A brake band is used to temporarily hold the smaller gears while the engine RPMs get to the proper gear ratio. A pump, on the other hand, delivers the transmission fluid that covers all of the parts in your automatic transmission's hydraulic system, and it has an oil pan to hold any excess. Finally, there's a valve body to manage the entire process to ensure that transmission fluid goes where it needs to, when it needs to, and in the desired levels.
When an auto transmission fails, you'll know it from signs like:
- Weird noises such as humming, whining, or clunking when the car's in neutral
- Leaking transmission fluid
- A burning smell
- The engine revving when you change gears, indicating gears are slipping
- Being unable to shift gears
- The Check Engine light coming on dash
See any, and you'll have to replace the transmission. That can run $5,270 to $5,470 or more, according to RepairPal, but the bottom line can depend on both the model you drive and whether you have transmission service done at a Mercedes-Benz dealer. Other industry sources, for instance, put the expense at anywhere from just under $2,500 to just over $4,500, sometimes more.
Whatever the repair, be sure to use genuine Mercedes-Benz parts for it. OEM means top-quality, guaranteed fit, and unlike a lot of aftermarket transmission parts, compliance with any factory warranty your vehicle has left.
Shop OEM Automatic Transmission Parts for Mercedes-Benz Online
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