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The BMW Range
5 Series
Fan clutch
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<blockquote data-quote="jarance" data-source="post: 93271" data-attributes="member: 21"><p>append below is the pic of the fan clutch. The fan clutch give a constant speed regardless of the engine speed. there is a bimetallic strip on the front of the fan clutch which will "bend" when the temperature of the radiator rises. This will caused the more oil to be pushed to the outter rim and hence created more grip on the engine rotating shaft. it will make the fan to rotate faster.</p><p></p><p>The fan clutch cannot be repair but some of the forummer have actually service it by refilling it with silicon oil.</p><p></p><p>If you engine temperature is showing "half" mark during normal driving, then you fan clutch is working well.</p><p></p><p>FYI, there is another electric fan between the front grill and the radiator.</p></blockquote><p></p>
[QUOTE="jarance, post: 93271, member: 21"] append below is the pic of the fan clutch. The fan clutch give a constant speed regardless of the engine speed. there is a bimetallic strip on the front of the fan clutch which will "bend" when the temperature of the radiator rises. This will caused the more oil to be pushed to the outter rim and hence created more grip on the engine rotating shaft. it will make the fan to rotate faster. The fan clutch cannot be repair but some of the forummer have actually service it by refilling it with silicon oil. If you engine temperature is showing "half" mark during normal driving, then you fan clutch is working well. FYI, there is another electric fan between the front grill and the radiator. [/QUOTE]
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