BMW 640i xDrive Fuel Tank Replacement Cost.

The average cost for a Fuel Tank Replacement is between $1511 and $1635. Labor costs are estimated between $466 and $589 while parts are priced between $1045 and $1046. Estimate does not include taxes and fees.

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Best Practices

For some vehicles, the fuel pump can only be accessed when the fuel tank is out. In this case, it may be wise to replace the fuel pump if the tank requires replacement.

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