Bosch CX Gen 4 Motor

[joejoejoe]

I have a Bosch CX Gen 4 motor on a Cube Stereo Hybrid 160 HPC. It has developed a moderately loud clicking noise when the left crank is at 7 O’clock this only happens under load and when the motor is switched on, it is silent when the bike is turned off. Have you any ideas what the issue is and if so is it an easy or difficult fix?
I would be grateful for any help you can offer.

 

[Annieolnie]

I don't know Bosch but I know some midrives. I've had a clicking noise on Bafangs when one of the throw-out levers on the clutch was loose. It did no damage. It was just annoying and disappeared when I re-greased the motor.