Mercedes CLA Forum banner

1 - 11 of 11 Posts

·
Registered
Joined
·
945 Posts
Discussion Starter #1
Although this isn't directly related to the CLA, the nine-speed transmission in the E-Class is something I think the CLA will get someday, hopefully in the CLA 45 AMG which right now comes with a 7-speed.

What better way to up performance and fuel efficiency in the CLA45 AMG than a nine-speed transmission :D

Fuel economy improved to 53.3mpg and CO2 dropped to 138g/km with new gearbox option

by Greg Kable
22 July 2013 11:08am

Mercedes-Benz has added a new nine-speed automatic into its line-up as standard equipment on the E350 BlueTec.
The new in-house-produced unit, known internally under the name 9G-Tronic, has long been mooted for selected Mercedes-Benz models.
However, its existence was officially denied until the weekend, when Mercedes-Benz’s German language website configurator went live with various updates for the E-class line-up – including an entry signalling the 9G-Tronic is now available on the standard rear-wheel-drive E350 BlueTec in place of the older seven-speed 7G-Tronic automatic gearbox.
The adoption of the 9G-Tronic fails to make any impact on the official E350 BlueTec’s 0-62mph acceleration, which remains at 6.6sec. But with two extra ratios and improvements to its stop/start function over the 7G-Tronic unit, its combined-cycle fuel economy figure has improved from 51.4mpg to 53.3mpg, according to Mercedes-Benz’s own figures. At the same time, average CO2 emissions have been lowered from 144g/km to 138g/km.
The moderate improvement comes through a more than nine per cent gain in city cycle economy, which improves from an earlier 40.9mpg to 44.1mpg. The motorway figure remains the same at 60.1mpg.
In other changes to the E-class line-up, Mercedes-Benz has introduced the seven-speed 7G-Tronic automatic gearbox as standard equipment on the E220 BlueEfficiency Edition. Previously, it came with a standard six-speed manual gearbox.
In saloon guise it retains the same 0-62mph acceleration as the earlier E220 BlueEfficiency Edition with the then optional seven-speed automatic, but its combined-cycle consumption improves from 60.1mpg to 64.2mpg, reducing average CO2 emissions from 132g/km to just 114g/km. Autocar understands the upgraded model now also complies to EU6 emission regulations.
A new E200 NGD model has also been introduced. The natural gas-fuelled E-class runs the same turbocharged 2.0-litre four-cylinder engine used in the B200 NGD, with 154bhp and 199lb ft of torque. Mercedes-Benz claims a 0-62mph time of 10.4sec and combined cycle economy of 4.3kg/62miles – the equivalent of 44.8mpg.


Mercedes-Benz introduces nine-speed auto | Autocar
 

·
Registered
Joined
·
167 Posts
10 gears is an awful lot of gears. I feel like it could become like razors at some point. Just because there are more blades does not mean that you are going to get a closer shave.
 

·
Premium Member
Joined
·
1,356 Posts
I really don't know what to say about having more gears being added. I always though that six gears was already enough but guess I was wrong. When I hear of 7 gears I already had my palm on my face and now 10!
 

·
Registered
Joined
·
109 Posts
Just read that the nine-speed transmission will not be on sale in the USA for over a year. The 9G-TRONIC transmission will debut in fall 2014 in the 2015 model year CLS-Class, but it is still unclear what engine the transmission will pair with.
 

·
Registered
Joined
·
167 Posts
I think the main point of the extra gears is to increase efficiency. If that's the goal, I think it's a great advancement. I'm not sure I just want to drive around manually with nine gears though.
 

·
Premium Member
Joined
·
927 Posts
My mountain bike has 27 speeds and I use every single one of them.
 
1 - 11 of 11 Posts
Top