Classic Vintage Mercedes-benz

- "Bluetec" indicates a diesel motor with selective catalytic reduction exhaust aftertreatment.
- "BlueEfficiency" indicates special fuel economy features (direct injection, start-stop system, aerodynamic modifications, etc.)
- "CGI" (Charged Gasoline Injection) indicates direct gasoline injection.
- "CDI" (Common-rail Direct Injection) indicates a common-rail diesel motor.