BMW 640i xDrive Radiator Fan Replacement Cost.

The average cost for a Radiator Fan Assembly Replacement is between $437 and $822. Labor costs are estimated between $52 and $67 while parts are priced between $385 and $755. Estimate does not include taxes and fees.
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Best Practices

If a new fan assembly is required and the engine was overheated, the engine should be checked for internal damage before replacing the fan assembly. 

Common Symptoms

A failed radiator fan may become very noisy.

A defective radiator fan will cause the engine to overheat, especially when idling and driving in traffic. The A/C may also perform poorly during these driving conditions.

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