For the 2012 model year, Mercedes-Benz has upgraded most of the powertrains in its lineup with more fuel-efficient transmission and engines, including a new four-cylinder and start/stop technology on some models.
Many models also get a new audio head unit, which has a 5.8-inch display, Bluetooth audio streaming, phonebook download functions, album cover art display and a USB port. We’ll denote which models get the new audio system with *new radio unit. There’s also a new 7-inch touch-screen navigation system available on most models, which includes real-time weather updates, three-dimensional city models and a 10-gigabyte music player.
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