Bosch gen 4 chainring loosening

[MsO]

Well the chainring has come loose after 800 miles on my Bosch gen 4 motor along with the noise coming from the motor I'm not fecking happy shouldn't have these problems on a 4800 pounds emtb starting to dislike the rail 7 now

 

[Adam Thomas]

Well the chainring has come loose after 800 miles on my Bosch gen 4 motor along with the noise coming from the motor I'm not fecking happy shouldn't have these problems on a 4800 pounds emtb starting to dislike the rail 7 now

Did the motor only start making noise once the chain ring became loose ?

 

[MsO]

No motor has got more louder the more miles I put on it now the bloody chain ring coming loose not happy with this gen 4 motor

 

[Pan]

My chainring bolt loosened after 650 km, but no damage. No motor noise change for me.