How to Repair a Cracked Windshield Washer Reservoir

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Things You'll Need

  • Socket set

  • Large cardboard box

  • Two-part automotive epoxy

  • Paint stir stick

Windshield washer reservoirs hold windshield washer fluid and the fluid pump. The pump sends the fluid through the washer lines and out of the washer nozzles onto your windshield. If the reservoir has a crack in it, however, the fluid won't remain in the reservoir long enough to be of any use to you. While you can simply replace the reservoir with a new one, there are more cost-effective means of remedying the issue. Anyone with basic automotive-repair skills can repair a cracked windshield washer reservoir.


Step 1

Remove the washer reservoir from your vehicle with your socket set. Depending on the year, make and model of vehicle, you can either remove it through the top of the engine well, through a wheel well, or from underneath. Consult a service manual specific to your vehicle for removal instructions.

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Step 2

Flatten the cardboard box and squirt a liberal amount of two-part automotive epoxy in an area near one edge of the cardboard. Stir the two parts of the epoxy together and allow it to cure per the epoxy packaging's specific instructions, using a stir stick.

Step 3

Apply the epoxy mixture to the crack with the stir stick. Once you've completely covered the crack, set the washer reservoir in a safe, dry, dust free area for 24 hours, unless the epoxy's specific instructions request a different time span.

Step 4

Reinstall the washer reservoir bottle in reverse of how you removed it. Discard the stir stick and cardboard after the initial 24 hours.


Never touch wet epoxy with bare skin or anything you don't want to weld to something else.


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