The LZB doesn’t go above the PZB speed even though it should. You are also limited to this going light locomotive. And turning off PZB doesn’t solve the issue
I'm told that if you're in mode M or U then this is valid. If you're in mode O it should go above 160. Simply turning off PZB however isn't sufficient, once turned off you also need to reset LZB as well. Hope this helps. Matt.
This 182 defaults to mode M so as Matt said you would be correctly restricted to 120km/h if you had not changed it. The LZB uses the PZB mode to determine what type of train you are driving to prevent it from allowing heavy freight doing dangerous speeds.