Any DIN65L MF battery. I can swap this between the V40, 240 & the Benz. Have had a good run from Supercharge Gold and AC Delco units. 650 CCA is plenty enough. Edit: Just saw yours was a later series but in any case, it is still a DIN65L.
I'm in Sydney and go to Battery Brands in Granville.
https://batterybrands.com.au/search?type=product&q=din65lmf