Mercedes W460 300gd OM617 coolant change

As the 300GD goes into storage, it was best to replace the coolant first. Whilst there are some videos for w123 300s with the OM617, the G layout is a little different, and I also show the drainage of the block and heater box if of help. As always, I am not a mechanic!

[@bastiian]

Good guide, appreciate it!

[@ramiroalejandrosalcedo7561]

Hello there, im wondering what happened with the air inside the system, how do you know there is not bubbles inside? thabnks