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Introduction

This guide will show you how to replace a broken collision detection bumper. This process should take only 10 minutes and require a size one Philips Head Screwdriver and a Flat Edge/Blade Cleanup Tool.

What you need

Step 1 Bumper

iRobot Roomba i4 Plus Bumper Replacement, Bumper: step 1, image 1 of 2

iRobot Roomba i4 Plus Bumper Replacement, Bumper: step 1, image 2 of 2

Insert a spudger between the top plate and chassis.
Pry around the entire perimeter of the top plate to disengage the retaining clips.
Remove the top plate.
Afterwards flip the Roomba over on its now exposed back.

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Step 2

Use a Phillips #1 screwdriver to loosen the five 7 mm-wide captive screws from the lower plate.
Remove the brush rolls.
Remove the lower cover from the Roomba body.

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Step 3

Use a Phillips #1 screwdriver to remove the ten small screws with a width of 4.7 mm and length of 11.3 mm on the underside of the bumper.
Remove the crescent cover from the underside of the bumper.

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Step 4

Use a Phillips #1 screwdriver to remove the two 4.7 mm wide screws that secure the bumper sensor.
Remove the bumper.

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Conclusion

To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.