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Print 37 comment(s) - last by Xplorer4x4.. on Jul 24 at 10:47 PM

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: Kudos!
By FITCamaro on 7/22/2013 2:12:53 PM , Rating: 3
Maintain a vehicle? Blasphemy I say! It should run forever on the same oils that came from the factory!


RE: Kudos!
By Spuke on 7/22/2013 3:36:20 PM , Rating: 2
quote:
It should run forever on the same oils that came from the factory!
LOL! I wonder how many people actually believe this though.


RE: Kudos!
By Complinitor on 7/22/2013 4:59:29 PM , Rating: 2
My father-in-law, for one. His Dodge Ram went 106K without a trans or oil change. What a mess that was...


RE: Kudos!
By SAN-Man on 7/23/2013 9:07:01 AM , Rating: 2
I saw the inside of a Toyota Camry rental (4 banger) after 40K miles with no oil change - it was not pretty.


RE: Kudos!
By Samus on 7/23/2013 1:31:40 AM , Rating: 2
That is exactly right. I've commented here a dozen times on this, having built transmissions for a good part of my career. Change the fluid, and install an additional transmission cooler. If the industry didn't lie to consumers with the rubbish about "filled for life" transmissions and "synthetic fluid that lasts 100k" then the transmission rebuilt business would plummet, cars would run longer, and people wouldn't buy new cars as often.

There is a manufactured lifespan for various components of cars. Engine failures are unacceptable (and can get manufactures in trouble with the EPA when they pollute more as a result) so transmissions were designed to be the weak link of the drivetrain. Consumers are used too and almost expect their transmissions to fail these days.

And just when slushbox torque-converter transmissions started becoming reliable in the 80's and 90's, the industry moved to DCT's and CVT's. The icing on the cake is most dealers charge $500+ to flush the exotic fluids in these transmissions so nobody does it.

But if you have a torque converter transmission, changing the fluid is <$100 (you don't even have to completely flush it, and replacing the filter (if there is one) is only necessary every other flush in reality. Some transmissions are cooled through the radiator coolant! Transmission fluid's ideal operating temperature is around 150-160F, coolant is always 180F+, so this is inherently a bad implementation from manufactures BUT ITS CHEAP.

Adding a cooler will extend your fluid life as heat is the obvious cause of fluid breakdown. Vehicles with tow packages always have less consumer complaints in regard to transmission problems because tow packages often bundle a larger transmission cooler. A dual-layer aluminum cooler and a few feet of hose is $100 and can double the life of your fluid. Synthetic fluids last longer, but they still break down.

What I find annoying is the industry has taken it to a new extreme in making standard (manual) transmissions more unreliable as well. But instead of fluid breaking down (which is very unusual in manual transmissions because they generate very little heat compared to automatics) they designed the internal components to fail. Dual-mass flywheels, the dumbest invention in automotive history (other than maybe wasted spark ignitions) are a completely unnecessary, expensive, heavy, and guaranteed failure point of any manual transmission. The flywheel almost always fails before the clutch friction material.

The obvious ridiculousness of DMF's is their selling point is to reduce NVH and improve shifting quality with smooth clutch engagement. They do this...a little. Over 90% of the clutch engagement is dampened by the springs in the clutch disc, so the ~10% increase in smoothness to replace a $400+ flywheel (traditionally flywheels don't need replacing so there is additional LABOR as well when doing a clutch) is just a scam on customers. DMF's also weigh 2-3 TIMES more than a cromoly or steel flywheel so this is additional drag on the engine, wear on the bearings and a leading cause for crank-walk. If you've had a DMF in a non-diesel Volkswagen or BMW, you know all this too well if your leaking oil from the rear main seal.

Transmission are the weak point of vehicles, they always have been, and they don't have to be. But this is the business.


RE: Kudos!
By Pneumothorax on 7/23/2013 9:21:06 AM , Rating: 2
I wish it would only cost $100 to change the tranny fluid/filter on these cars lol... Not sure about MB prices, but BMW wants about $500-600 for a change. You ask why?! Even at internet discounted prices, the fluid alone is >$200 shipped and the filter is about $230...


RE: Kudos!
By Samus on 7/23/2013 3:03:20 PM , Rating: 2
Go to a transmission shop or lube shop that has a T-tech machine. It uses your transmission pump to pump new fluid in and old fluid out. It is over 95% effective at removing old fluid and requires nothing other than detaching the transmission cooler hose clamps. Most of the time you don't even need to go under the car.


RE: Kudos!
By Mitch101 on 7/22/2013 3:38:42 PM , Rating: 3
Im going assume neither of you have owned a Chrysler.


RE: Kudos!
By btc909 on 7/23/2013 3:14:11 AM , Rating: 2
Oh I do. Have to wait a good several seconds AFTER you put the car into gear before you start moving. Also like to bang gears when it is below 60F outside until the trans heats up.


RE: Kudos!
By FITCamaro on 7/23/2013 9:02:47 AM , Rating: 2
My parents have. They've been pretty much flawless. Because my dad maintains the vehicles so well.


RE: Kudos!
By Mitch101 on 7/23/2013 2:24:36 PM , Rating: 2
Let me warn you ahead of time. While I loved my Chrysler car very much I attempted to have everything regularly on it serviced in an effort to make it last forever. I treated it as if I was going to drive it for 20 years and be in commercials where the car lasted like one of those Mercedes a million miles. After all whats $20.00 here and there instead of a car payment. I even paid to have the timing belt replaced at 100K as per the service manual despite the dealership recommending its not necessary. However nothing in the world of preventative maintenance could prevent transmissions from going. It did last well beyond the average person who experienced a failed transmission but inevitably it will fail. Engine by Mitsubishi still going strong but transmission #3 was close at hand and everything around the engine began failing. Never a drop of oil hit the ground. Oil never ran old or over 3k miles. Trans fluid replaced every 25-30k miles. I did get maybe 6 years of no car payments out of her she paid me back to a degree. I won but wonder how well I could have really done without replacing the transmission twice.

I ultimately had to unload the car because mechanics were making things worse charging me a small fortune to have the same problems in some cases before I left the parking lot. I blame giving her up on the mechanics who just couldn't fix her properly and with work I needed the reliability she once had. I could keep mechanics trying and be unemployed in the process so I had to give her up. I should have put her in the garage and done the work myself. I never beat on her and most of her commute was highway. I miss that car to this day but whenever you buy a Chrysler make sure the transmission is from someone like Mitsubishi.


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