MB300AMG

New 4.7L V8 producing 435hp and 516lbs-ft. of torque. 22 Percent Improvement in fuel economy.

Modified 3.5L V6 producing 306hp and 273lbs-ft. of torque. 24 Percent jump in fuel economy.

No word on when though...

InsideLine: Mercedes Introduces New Fuel-Efficient V6, V8 Engines.
http://www.insideline.com/mercedes-b...8-engines.html

jctevere

Wow, good to see that they can produce engines like these... Really excited about the 3.5L which will definitely make it into the C-Class. I am not so sure about the 4.7L engine though, that seems more destined for the E-Class and above... I wonder if they are going to do the same thing for the 6.3L AMG engine?

And I'm not sure if anyone noticed, but HOLY TORQUE in that 4.7L, way more then the 6.3L AMG engine... I would take torque + fuel economy over raw HP anyday for a DD.

I wonder if they will start to call them E470?

Derspeed

I thought I read Next Gen 2015.

jman350

I hope the 3.5L makes it to the 2011 C350!!!

snarlingchicken

Me want 3.5...

Niti24

that would be a great upgrade!

MB300AMG

Can't be. Most sources say that the C-Class is receiving engine upgrades for the facelift, so it should come sooner than that. If not for the 2011 model year then definitely for the 2012 model year.

Robbio204

That's a great find!

6speedbenzLA

now all we need is a C350 with the new motor and a 6speed

Peabody

I thought Mercedes was working on a twin turbo as well for the next gen C class V6?

Niti24

What I read is that they are putting a twin turbo in the coupe. I can't remember where I read it but I'll keep looking for it. It also said the 0-60 would be in the mid 5's.

Niti24

http://www.insideline.com/mercedes-b...-revealed.html
this article talks about the engine they are going to put in. Its the same engine as the BMW 135i. A 3.5L direct inject, and twin turbochargers!

Niti24

http://www.insideline.com/mercedes-b...t-is-a-go.html


this article is on the convertible coupe. Looks Real nice. I don't know how accurate this info is but it's from insideline so I expect it to be pretty good

e1000

300hp, no TT on the 3.5L. Yawn. I'm underwhelmed.

nyca

Given how draconian the 2016 mpg/CO2 regulations are, its a miracle that engines like this are still going to be available. The weights on these cars have to come down too.

No info here on how they are going to keep the intake rails from fouling in these DI engines - there were posts here that the engines would carry a cleaner resevoir that had to be periodically refilled.

The downside is - if start/stop is standard, I won't buy it. I won't buy a car that shuts itself off when its stopped, then restarts the motor.

Wig

Why not, just out of interest?

nyca

Its a complicated system - the AC compressor has to be electric now, you need a sensor package to figure out the piston positions at shutdown so the spark sequence can restart it, and you need a starter motor that is 50x more reliable then you have now - because you start the car 50x more, expecially if you live in a metro area with alot of lights and stop and go driving. Why bother? This feature adds just a fraction to the EPA city rating, and nothing to the highway rating. I'd rather see the engine tuned for a little less power, and a little more MPG, then to have this feature.

MB300AMG

Figured i'd throw in some more official articles since no one else got on it...

Autoblog:
http://www.autoblog.com/2010/05/07/o...i-spark-v6-an/

MotorTrend:
http://wot.motortrend.com/6643618/te....html#comments