Estimates last updated October 16, 2025

2021 BMW M340i Windshield Washer Fluid Reservoir Replacement Cost

The average cost for a 2021 BMW M340i Windshield Washer Fluid Reservoir Replacement is between $309 and $394.

• Labor costs are estimated between $183 and $269 while parts are typically priced around $126.
• This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.