Those who underestimate the importance of a Mercedes' transmission do so at their own risk, since a blown transmission can end up costing you big. A significant number of transmission problems arise as the result of insufficient transmission fluid levels. This, in turn, is generally the result of a transmission fluid leak.

If you would like to learn more about where such leaks tend to occur, and what an experienced mechanic can do to prevent them, read on. This article will help you protect against unwanted expenses by explaining two common places where fluid leaks happen.

Transmission Lines

The transmission in your automobile is a complex system. The key component, obviously, is the transmission itself, whose purpose is to allow your car to switch smoothly between gears. Transmission fluid is vital for this purpose, since it both lubricates and cools the transmission.

In the process of cooling your transmission, the fluid itself absorbs a certain amount of heat. This heat is then dissipated inside of the cooling chamber, a separate component to which the fluid flows through a series of rubber hoses. These fluid lines are the cause of countless transmission leaks.

The problem may arise in one of two ways. First of all, the rubber from which these lines are made has a tendency to degrade over time, often becoming brittle and developing cracks. The other problem has to do with the metal fittings used to attach the hoses. Should these fall prey to corrosion or damage, they may no longer form an appropriately tight seal.

Transmission Pan

The transmission pan functions as the main transmission fluid reservoir. Here is where your transmission fluid spends most of its time, when not actively moving through the system. Problems tend to arise thanks to the location of the transmission pan. In most automobiles, it can be found just beneath the gearbox--a location that makes it vulnerable to rocks and other roadway debris thrown up by your tires.

Such debris isn't the only problem for a transmission pan, however. For those who live in cold climates, de-icing salts tend to promote corrosion on the bottom of the pan. Over time, this leads to the formation of cracks and holes in the metal. Even if such corrosion hasn't worn all the way through, it will make the transmission pan much more vulnerable to becoming damaged through otherwise minor accidents, such as popping a curb, or hitting a nasty pothole. 

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