BMW E36 Fuel Filter replacement is a simple, yet crucial task for any E36 owner. The fuel filter is a regular maintenance item that should typically be replaced after every 10,000 miles. 
The fuel filter is an often neglected component of most vehicles, because of the fact that it sits underneath the vehicle inside a cover.
Fuel Filters get dirty like any other filter, and in worse case scenarios they may become completely clogged. 
Fuel Filter replacement on a BMW is rather straight forward, the biggest problem is that the filter itself carries several ounces of gasoline, which will pour onto anyone that opens up the fuel hose.
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