BMW 3 Series (1991-1999) Differential Fluid Change DIY

Replace the Differential Fluid on an E36 BMW 3 Series (1991-1999)

Works For:
1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 BMW 3 Series Models
BMW 3 Series Includes:  316, 318, 320, 323, 325, 328, 330 and M3 .

Why change the differential oil? The differential is just like any other mechanism with moving parts. It generates heat and friction while in operation. Just like an engine, regular oil changes help to keep parts such as gears well lubricated and clean. Over time, the differential wears just like any other component. The differences between the differential and an engine is that the differential has no internal filter to capture small particles of metal as the gears wear. Also, the differential uses oil that is much thicker than engine oil. Usually differential oil is good for up to 80,000 miles without changing. However it is commonly overlooked in the wide spectrum of vehicle maintenance. Failure to change the fluid at regular intervals can cause a variety of problems, eventually causing the bearings in the diff to fail. In this article I will go over the simple steps to changing the oil yourself and avoid a costly trip to your mechanic for something you can do in under an hour in your driveway…

View the full tutorial at PelicanParts here: BMW 3 Series (1991-1999) Differential Fluid Change DIY

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