http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=27Y0TUEJR2800MZEU7&year=2000&make=MB&model=ML-320-001&category=All&part=Fusebox+Blower+Motor

Here is the part since you are new. The dealer wil prolly charge 3 times the amout to change it.
I'd try to change it for you since I live in SA also, but I'll be busy working on my car seeing as how the water pump is shot.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual