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Sennheiser Momentum 4 Left Driver Assembly Replacement

Introduction

Use this guide to replace the left driver assembly in a Sennheiser Momentum 4.

This guide requires soldering. If you're unfamiliar with soldering, review the How to Solder and Desolder Connections guide and take appropriate precautions before beginning.

What you need

  1. Sennheiser Momentum 4 Left Driver Assembly Replacement, Ear Pads: step 1, image 1 of 2 Sennheiser Momentum 4 Left Driver Assembly Replacement, Ear Pads: step 1, image 2 of 2

    • Insert a spudger into the seam between the left ear pad and driver assembly.

    • Gently pry around the perimeter of the ear pad until it fully releases.

    • Remove the left ear pad.

    • Repeat for the right ear pad if necessary.

    Edit

  2. Sennheiser Momentum 4 Left Driver Assembly Replacement, Battery: step 2, image 1 of 2 Sennheiser Momentum 4 Left Driver Assembly Replacement, Battery: step 2, image 2 of 2

    • Use a Phillips #00 screwdriver to remove the four 6.5 mm screws that secure the left driver housing.

    Edit

  3. Sennheiser Momentum 4 Left Driver Assembly Replacement: step 3, image 1 of 1

    • Insert the flat end of a spudger into the driver housing seam.

    • Gently pry the driver housing up and out, with care not to strain or damage the connected cables.

    Edit

  5. Sennheiser Momentum 4 Left Driver Assembly Replacement: step 4, image 1 of 1

    • Carefully lift away the driver housing out and flip it over to reveal the battery cover.

    • Use tweezers to pull the white battery connector directly out of the daughterboard socket.

    • It disconnects similarly to removing a plug from a socket.

    Edit

  6. Sennheiser Momentum 4 Left Driver Assembly Replacement: step 5, image 1 of 1

    • Use the flat end of a spudger to pry open the retaining clips on the battery cover and remove it carefully.

    Edit

  7. Sennheiser Momentum 4 Left Driver Assembly Replacement: step 6, image 1 of 2 Sennheiser Momentum 4 Left Driver Assembly Replacement: step 6, image 2 of 2

    • Insert the flat end of a spudger between the lower edge of the battery and the battery housing.

    • Do not bend, warp, or puncture the battery.

    • Gently lift the battery upward to release the adhesive that secures the battery.

    • If necessary, use a hairdryer to lightly heat the battery to loosen the adhesive.

    • Remove the battery.

    Edit

  8. Sennheiser Momentum 4 Left Driver Assembly Replacement, Left Driver Assembly: step 7, image 1 of 1

    • Desolder the two driver assembly motherboard connections.

    • Remove the driver assembly.

    Edit
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.

Author

Connor Bassolino

Member since: 03/29/22

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