The 1991 Mercedes-Benz 350-Class was available in two configurations: the 350SD (for sedan diesel) and the slightly more luxurious 350SDL version. Both included the automaker's 3.5-liter turbocharged diesel engine, which provided more power at higher speeds than standard diesels. An inline 6-cylinder engine, it generated 134 hp.

Standard features for the 1990 350-Class included a 4-speed automatic transmission, anti-lock brakes, power windows, power door locks, and air conditioning. Other features included bucket seats, a driver's-side airbag, fog lights, a telescopic steering wheel, cruise control and alloy wheels.

Drivers comment on the heaviness of the car, although they usually note that it handles well on the road and gets good gas mileage for a car its size.