The SL202 came with a wide choice of transmissions, from three and four-speed Renk Doromat automatic transmissions, to three and four-speed Voith DIWA transmissions, to four and five-speed ZF Ecomat 4HP500 or 5HP500 transmissions.
The internal combustion engines used in the SL202 were replaced around 1990, from older, smaller, 2566 series engines to newer, larger, 2866 series engines.