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it will gain a combined fuel economy of 53.3 MPG from 51.4 MPG

Mercedes is updating its E-class line-up with a new nine-speed automatic.

Last weekend, Mercedes-Benz’s German language website configurator revealed that the nine-speed automatic -- known as 9G-Tronic -- will now be standard on the rear-wheel-drive E350 BlueTec. It will replace the seven-speed 7G-Tronic automatic gearbox, which will now be standard equipment on the E220 BlueEfficiency Edition.


While bringing the 9G-Tronic along won't change the E350 BlueTec’s ability to hit 0-62 MPH in 6.6 seconds, it will gain a combined fuel economy [European rating] of 53.3 MPG (from 51.4 MPG with the 7G-Tronic). This is due to a boost in city MPG from 40.9 to 44.1. 

The 9G-Tronic also brings reduced average CO2 emissions from 144g/km to 138g/km.

Back in May, Mercedes said it was aiming for 45 MPG highway on the new 2014 E250 Bluetec 4Matic diesel sedan. Its 2.1-liter, 4-cylinder turbodiesel engine uses twin sequential turbochargers for 195 HP and 369 lb-ft of torque.

Source: Autocar



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RE: Are 9 Gears Really Necessary?
By SAN-Man on 7/23/2013 7:23:42 AM , Rating: 2
With the new transmission the car is approaching 45 MPG in the city - I'd say it's having some benefit.


RE: Are 9 Gears Really Necessary?
By PaFromFL on 7/23/2013 9:33:03 AM , Rating: 2
It's ironic that the number of gears is increasing at the same time more engines are turbocharged and exhibit broad torque curves starting at relatively low rpms.


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