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On average, the cost for a BMW 645Ci Transfer Case Fluid Replacement is $176 with $81 for parts and $95 for labor. Prices may vary depending on your location.
The transfer case is a special gear box found in four-wheel and all-wheel-drive vehicles. It sends drive power from the engine to the front and rear axles. In all-wheel-drive vehicles, the transfer case helps to shift power from one axle to another, depending upon traction conditions. Lubricant fluid in the transfer case helps to keep its gears cool and turning smoothly. Replacing this fluid at appropriate intervals can help prevent premature wear and damage caused by contaminated or broken-down lubricant.
If the transfer case fluid is low, the entire transfer case should be inspected for leaks.
Transfer case fluid should be replaced at least every 30,000 miles. You should schedule this maintenance for your vehicle, and anytime the transfer case is inspected, the transfer case fluid should be checked.
The transfer case is a gear box that is unique to four-wheel drive and all-wheel drive vehicles. The transfer case is responsible for sending power from the engine to both the front and the rear axles, and shifting power from one to the other depending on the conditions of the road. Transfer case fluid is responsible for keeping the components of the transfer case well lubricated. When this fluid leaks out or becomes contaminated, it is no longer able to act as a lubricant, and severe damage can be caused to the transfer case.
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