Homey63

New to the E Forum and looking for some advice on the e550

I am considering a CPO E550 4matic and was wondering about real world gas mileage on the 550. Before you jump all over me about "why i care about gas if I can afford the car..." I drive an older 2000 E320 and a 2012 C63. I am concerned about gas because I would like to average down as this will replace the 2000 e320. The C63 is a bit of a pig but would not trade it for anything. I am also considering a 2014 e350 for that reason. My driving habits are 80/20 city / highway. I would like to get your views on what your experience has been with the 550 4.6bi-turbo.

Secondly, I know it's early but any issues with this motor?

Any help would be appreciated.


Thanks

dan1495

I have a 2012 E550 that just turned 28,000 miles. I average 23 MPG in mixed highway/city driving. I have gotten as high as 28 MPG on the highway. I have had no issues with the car, including the drivetrain.

xolinlevh

just to put in perspective....i have a 2011 E550 that averages 15/17 or so

Homey63

Dan1495
Thanks, this is helpful. What is your estimate of of city / highway? These numbers are about the same as I get from my 2000 e320

dan1495

This is strictly an estimate, but I would expect around 18 MPG for mosly city driving.

Homey63

I expected the NA5.5 to be a little more thirsty than the 4.7 bi-turbo. How is your 2011 holding up, any issues?

GoBlando

For your test drive:
1. Let the car warm up
2. Right before you put the car in gear for your test drive, reset the both trip computers.
3. Take your test drive in a city environment and drive normally. Be sure the test drive is at least 10 miles.
4. At the end of test drive check the avg MPG and subtract 2 MPG (After 15 full ups I have found that each time I compare the computers math to the simple odometer difference / gallons filled it is always different by 1.8 - 2.2 MPG).

The turbo engines econ is not that great in the city, and can really vary depending on your landscape and driving style. My highway trips (I set the distronic plus to 79MPH) are usually between 24-26 real MPG (computer says 26 to 28). If you are a conservative highway driver it will probably be closer to 26-28 real MPG. If you don't use control and lots of engine braking you will probably do better than that.

Also, I am all about good economy no matter the price of the car. You are buying refinement, not crude engineering.

hyperion667

wow that seems low, but considering: I do only get 20-24 per gallon with mine(2011)
do you always cruise in S xolinlevh? I find that setting to obviously get less miles......

good luck OP

Packer Fan

I've got an 2012 E550 which has about 27,000 miles on it. If I'm on some flat freeway with little traffic, I get 28 to 30 miles per gallon going about 70 mph. The best I have ever averaged was just over 30 miles per gallon on a long road trip with no traffic. When I go into work in Minneapolis and get caught up in the rush hour traffic on Interstate 35, I get 16 to 18 miles per gallon. Very, very nice engine. Really glad I spent the extra dough to get the V8 as it is soooo smooth on interstates and passes cars with ease. It would be interesting to drive the new 2014 E350 as it does has reportedly a little extra horse power in the engine.

Homey63

Thanks, that is helpful. MB's engines have come a long way. Good to hear that this v8 is pretty efficient.

Nuru

When I grow-up, I am gonna get an E550!

hyperion667

haha, S class for me(when I grow up)

Nuru

LOL!

Recenlty saw a 2007 S600 - incredibly good looking car, with a V12 - tune-up, okay spark plug removal - $3500