BMW 335i xDrive Windshield Washer Reservoir

What does a Windshield washer reservoir do?

A windshield washer reservoir is a container located under the hood of a vehicle that holds the windshield washer fluid. The reservoir is usually made of plastic and has a cap or lid for filling the washer fluid. When the windshield wipers are activated, the fluid from the reservoir is sprayed onto the windshield to help clean it and improve visibility, especially in adverse weather conditions or when the windshield gets dirty.

Windshield washer reservoir replacement

Under normal circumstances, a windshield washer reservoir can maintain its integrity for many years, as long as it doesn't remain empty for extended periods. However, if the fluid level is consistently low or absent, cracks might develop in the walls of the windshield washer reservoir, and the plastic material could degrade over time. Additionally, mounting holes might contribute to leaks or other issues as time goes on. If you notice any signs of leakage or visible damage on the reservoir, it's crucial to promptly look for nearby windshield washer reservoir replacements and replace the components without delay.

Step-by-step replacement guide

1. Park the car in a safe, flat area and turn off the engine.
2. Open the hood to access the reservoir.
3. Drain the old washer fluid from the reservoir.
4. Disconnect hoses and electrical connections from the old reservoir.
5. Remove the old reservoir from its mount.
6. Install the new reservoir in place.
7. Reconnect hoses and electrical connections to the new reservoir.
8. Refill the new reservoir with fresh washer fluid.
9. Test the system to ensure it's working properly.
10. Close the hood securely.