Whats Wrong with My Bosch gen 2 eBike motor? common issues with the bosch gen 2 performance line cx 

Truly!

​@@ebikemotorrepair help me please,motor bike brose error is on 70,72 ,

@@Ronin_YT1 I think that is torque sensor. are you in the US?

​@@ebikemotorrepairThere are no services from this Europe in my countries

​@@ebikemotorrepairThe manuals I found are just how to use, nothing more, I don’t quite understand what it looks likei is torque sensor

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That’s a really good idea as we are coaching on this a lot.

I understand what you mean. Fortunately these motors don’t get too hot. And it looks like they did consider this effect. It’s not too often we see ingress that reaches the PCB since it is positioned nearly in the middle of the inside. It happens occasionally but usually the bearings get the most mucky action.

Yes, looks so overly complicated with many parts.

In production

we sell them ebikemotorrepair.com/product/bosch-gen-2-crank-shaft-used/?v=7516fd43adaa

yes we are Peter's US partner.

I like g4 much better. the g2 had that small 3:1 output front sprocket. It had a tendency to suck the chain in any kind of dirty conditions. Also are it really hard to pedal if you ever got stuck with no more battery life.

@@ebikemotorrepair Thank you, Appreciate the informative reply

there are about 90 error code 500's. Most of them are related to software issues. A shop with diagnostics should be able to clear the code and see if it comes back. If it comes back then it could be related to an incompatible accessory. It can also be some parts that have failed in the motor. One of our partners should be able to help if you need more assistance. here is a list of our partners ebikemotorrepair.com/world-wide-partners/?v=7516fd43adaa

Or you could see it a different way. All the motors have problems. They all have problems for different reasons. It’s kind of the cost of the fun and joy that they bring. I have a motocross background and we were doing overhaul on motors just about every season.

@@siriosstar4789 I like you’re thinking here. I will poke one hole in your argument and that is we see similar ratios of failure across every manufacturer. While Brose did have several batches of lemons throughout several years of manufacturing, the motors that were not part of bad batches with manufacturing defects have actually held up quite well. So if we remove the flukes, it’s actually a pretty cool motor. Yes we made that video based on typical problems that we see with Bosch. While we do repair less Bosch, there are far less of those motors used in the United States. Frankly, the new generation for CX motors are coming in in big waves with problems in some cases that cannot be solved at all. Some of them quite mysterious. Cool thing about my opinion is I’m not being paid by any of these big companies to share my opinions. We just see thousands of statistical samples to base these characteristics upon. Feel free to let me know if you have any interest in digging deeper. Promise I’m not trolling. I just love to engage on these matters.

I don’t know where to start with that logic. I can’t think of a single electric motor that has an oil bath also metal gears are louder. Also weight is a big issue in battery life. So if you switch to metal gears in an oil bath, you’re increasing the weight significantly. Also keeping the electronic components separate from an oil bath would prove problematic. As far as your logic with maintaining goes, do you know any car that goes a 500k km without maintenance? Or for that matter, are there any bikes that don’t need maintenance? If we compare motorcycles, even to your argument, you would spend nearly the value of the bike every year maintaining the engine that has an oil bath. I’m afraid part of the cost of mechanisms of any kind that get used is some sort of maintenance. I would agree with one part of your argument that is this design is not the optimal ideal design. But mainly because it has a one to three ratio of input to output. Meaning the sprocket turns three times for one time of the crank. No problem when you’re riding with battery power but if you ever had this model battery die on you a ride it’s a real challenge to pedal home. I would certainly encourage you to reconsider your perspective. They are a lot of fun when they work and they will come along with maintenance needs at a different than a regular bicycle..

@@ebikemotorrepair yes i know car with motor that made 500.000km with just changing oil pretty often. Also combustion engines are 10x more complicated and car is way faster, sits outside in rain snow and still works. And yes there is one ebike with oil bath. I think its called pinion but they cost more than car.

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If you want a reliable motor I suggest a wheel hub motor. You only replace planet nylon gears after maybe 10 000 km.