2013 ML350 Bluetec, auto, 230kklm, Bought from Auction last week (Qld, Australia).
Loud clunk from engine bay on hard acceleration (foot to the floor) from standstill.
No codes, great acceleration and no noise when foot is not fully 'shoved' to the floor.
Previous experience, on different brand cars, suggest the fault lies with engine mount failure.
No Diagnosis tool (yet).
Car looks well cared for otherwise.
Id rather procure additional parts that are likely to fail in the near future that could be replaced while I am dismantling sturrfff around the engine mounts.

Any suggestions on additional areas / parts to measure / look for?

 

Fluids are the life blood of an automobile. If in doubt, change it out.

 

Higher mileage vehicles generally need the serpentine belt system (belt,pulleys and tensioner) replaced. I'm not sure, but I think you may have to remove the alternator to replace the right side mount(on left hand drive). It would also be a good time to replace the water pump and hoses, if they haven't been already.

 

Thank you, Appreciated