Gixxer162
New Member
Hey I just got my bike in January has the Bosch cx motor and I am going to learn everything I can about this thing to do my own servicing how often should I be doing it ??
That is exactly the info I wanted pal thanks so much ????????Bosch don't give you much (any) information about how to look after a Performance Line CX motor... But these forums can help!
I've used this motor for a year and a half, and had one failure/replacement in that time. Something I didn't want to repeat, so I did a lot of research.
What you need to know is this:
The biggest risk is to the drive-side internal motor bearing. This is what usually fails, and it's also the only thing you can maintain or replace yourself.
The motor seals are not water proof. Their IPX rating is pretty poor: Sealed to light spray and larger-than-sand debris.
DON'T SUBMERSE OR HEAVILY SOAK THE MOTOR - I think my problem was I frequently cycle through a ford!
YOU MUST MAINTAIN THE DRIVE-SIDE SEAL
Take you drive side crank off, the Bosch chain ring (you'll need the Bosch spider tool) and behind that you'll see a black seal.
Take it off carefully, clean behind and pack behind with lots of grease with a good water resistance. Replace seal. Replace cranks etc...
That's all the maintenance you can do.
After that, if the drive side bearing still fails, Bosch now offer a replacement you can do yourself (or your LBS can help). Previously, you had to send the whole motor/bike away to get a replacement (and probably still do if its a warranty fix in the 2-year warranty period).
This is it: New Bosch CX Motor Refresh Kit (EMBN) <3 <3 <3 - EMTB Forums
Hope that helps! If I'd know this before, I'd probably still be on my first CX motor!
That is exactly the info I wanted pal thanks so much ????????
I wasn't' criticising you for your servicing protocol, I was having a go at Bosch!Hi, it's just what I do..its just my personal preference..
If this seal service every three months saves the motor, you'd think it would be in Bosch's interests to provide the specialist tools and full instructions with every Bosch motor.
Eventually, someone at Bosch will realise that improving the seal might be a better solution.
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