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Shame you didn't stumble upon my video, it's mere for the man doing it himself ;)

Along with our other "How-To" videos, I have just added a new one showing how to fit the new Bosch motor service kit. Hope it's helpful to someone.

I wouldn't worry in your case. The motor came loose due to compression of the damper. Your bolts were re-tightened, so it should not happen again. If they fit a new damper pad, you may have to go through all this again as it will just compress over time again.

Yes dblhelix, it is the same "damping film" they are talking about. It is quite a common issue.

Unfortunately, it's not a fault of the bolts or nuts. When the motor is mounted from new, it has a thin foam gasket between the motor/motor bracket and frame. This gasket compresses over time allowing the motor to become slightly loose. Once the motor is loose it wears this gasket away and this...

Virtually all ebike motors suffer the same issues. If your bearings get water in them, they will fail at some point. The more water, the quicker they fail.

Spray battery grease or terminal grease on your terminals and set your battery clamp tight, almost so you have to use two hands to clip the battery in. Always works for me :)

It still wouldn't help! The circlip is 19.5mm ID and that size is not available anywhere! There is no inch equivalent either. But at least we now have a solution. :)

I thought this would probably be the best place to put this. As well as the video, I now have all the motor bearings and seals available, and offer a repair or overhaul service. You can see by my site www.performancelinebearings.com that I started off working with Bosch motors, but we are now...

How many would you like? In fairness you are right, the actual circlip used by Bosch is like their bearings, a bespoke part! I have been searching for 6 months! And as no one would make them for me (unless I wanted 50,000 or more!) So, I have found the closest possible match. They are 0.078...

Hi Digiman, The Bosch Performance Line motors should have a relatively quiet whirring noise. Remove the chain from the front sprocket, so you can crank the motor both ways by hand. You should be able to hear and feel what's going on a little better? When you crank the motor forward it will spin...

Brace yourself Dan!...Only kidding ;) It sounds like you just have a main motor bearing gone and maybe a dose of paranoia? You have listed several findings that can all be attributed to different things so it may not be as bad as you fear. When you say there is more play "in the pedals" I am...

Could this be an issue with an over sensitive torque sensor? It has to see 4.5Kg of pressure before activating the drive. If your torque sensor is registering too soon, it may make it drop out the drive too early? It looks like you have tried almost everything else! If you're in the UK and can...

Up until now, if your Bosch motor failed and it's out of warranty your options were fairly limited, prey it's a main motor bearing or buy a new motor! https://performancelinebearings.com can now repair or overhaul your Bosch motor. Repairs to circuit boards or gears are still not possible but...

New video available on the CX motor this time! Please share if you think it will help others. Just for interest, here is one of the bearings from this motor!

Me again! I have just uploaded a new, more in-depth video showing a completely worn out CX motor being bought back to life! Every single bearing was bad! again, please share to other forums if you feel it would be helpful. This is a picture showing just one of the bearings from this motor. I...

That is why I offer a fitting service. If it's not possible to send your motor or drive sprocket carrier to me, you could take it to a garage or workshop with press facilities. I'm sorry I can't help any more than this :( But failing all this, you could buy a new motor!

I have suffered this twice now. First time the battery was loose (only slightly) in its holder and as I went over large bumps it would break contact, causing a power loss for a few moments. The other time was my Nyon connection was getting loose and that was causing the bike to cut out...

Hi All, Just to keep you up to date. I have now sourced, or had made, just about every bearing in the Bosch Active and Performance line and CX motor. I have also added a video on how to change these bearings. The link can be found on my "how to" page. https://www.performancelinebearings.com...

Hi All, Just to keep you up to date. I have now sourced, or had made, just about every bearing in the Bosch Active and Performance line and CX motor. I have also added a video on how to change these bearings. The link can be found on my "how to" page. https://www.performancelinebearings.com...