Think the W202 C-Class , W210 E-Class , and the 1999 ML320 .

MB 236.1 fluids are typically red . If your fluid looks dark or smells burnt, it’s time for a flush.

While might sound like a random file size, it is a very specific technical designation for automotive maintenance. MB 236.1 is a Mercedes-Benz specification for Automatic Transmission Fluid (ATF) .

MB 236.1: The Guide to This Essential Mercedes Transmission Spec