# Di2 Front Derailleur not shifting, very noisy!

**URL:** <https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170>\
**Category:** Equipment\
**Created:** [October 27, 2025, 7:41pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170 "2025-10-27T19:41:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![CamSam](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/camsam/32/144831_2.png) [@CamSam](https://www.trainerroad.com/forum/u/CamSam)\
**Post date:** [October 27, 2025, 7:41pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170/1 "2025-10-27T19:41:26Z")

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My front derailleur (Shimano 105 Di2) has stopped shifting. It makes a loud wirring and clicking noise and moves slightly before returning to it’s original position. Is this a known issue?

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**Author:** ![webdev511](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/webdev511/32/135558_2.png) [@webdev511](https://www.trainerroad.com/forum/u/webdev511)\
**Post date:** [October 27, 2025, 7:51pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170/2 "2025-10-27T19:51:09Z")

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Servo motor issues are known. I had to replace my grx di2 front mech. My mechanic recognized it was on its last legs and advised replacement.

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**Author:** ![CamSam](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/camsam/32/144831_2.png) [@CamSam](https://www.trainerroad.com/forum/u/CamSam)\
**Post date:** [October 27, 2025, 8:18pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170/3 "2025-10-27T20:18:12Z")

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Are they easy to replace? Buy a new one and plug it in, or is it more complicated than that?

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**Author:** ![KevinKlaes](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/kevinklaes/32/85262_2.png) [@KevinKlaes](https://www.trainerroad.com/forum/u/KevinKlaes)\
**Post date:** [October 27, 2025, 8:49pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170/4 "2025-10-27T20:49:58Z")

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You can try to lubricate the pivot if you remove the plastic backing. The 105 di2 is not as well shielded from stuff like the Ultegra/DA ones.

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**Author:** ![matt.dc](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/matt.dc/32/7746_2.png) [@matt.dc](https://www.trainerroad.com/forum/u/matt.dc)\
**Post date:** [October 28, 2025, 3:32pm UTC](https://www.trainerroad.com/forum/t/di2-front-derailleur-not-shifting-very-noisy/106170/5 "2025-10-28T15:32:14Z")

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Really [easy to replace](https://si.shimano.com/en/dm/RAFD011/temp_install_front_derailleur), just unscrew the old one, plug the new one in & adjust it. (pro tip, [si.shimano.com](http://si.shimano.com) has manuals that give good walkthroughs of pretty much any part they make & can save you some time trying from trying to hunt down the right youtube video / blog)