thermostat change on 300m
 

This is the second time my thermostat has needed changing and the mech that did it the first time screwed it up so now Im attempting it myself. I'm having QUITE a bit of trouble with no owners manuals or much information available. if someone could help me with 1) finding the draincock 2) locating the thermostat unit itself 3) any additional useful information you may have.
Thanks for the help in advance. wish me luck

With having zero knowledge of what u are doing then U would suggest that u buy a service manual and read up first.