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Old 09-02-2014, 04:53 PM   #113
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I tow a fully loaded 25FB with a 14 ML350 Blutec with reinforced hitch and receiver setup from CANAM. It is a dream compared to the several previous large diesel truck based tow vehicles. We have been west coast, east coast and all over Colorado. The only issue is pulling long hard grades 6-7% over 5 miles (East bound Eisenhower Tunnel and Rabbit Ears Pass) in forth the temp will start to climb until I turn off the AC and run the heat maximum hot for the 10 or so minutes it takes to crest the top. I am confident it would not overheat but why push it when I don't have to. I could slow down as well but.. Mileage has varied from 13-19 depending on speed, temp and wind conditions.

Personally having towed with a host of vehicles over the last 25 years I find the ML350 to be the best overall TV we have owned.

Maintenance costs are not a big factor to me compared to quality, ride, safety, reliability/durability, resale, and overall enjoyment the other 95% that we are not towing.

Yes, I test drove and considered most of the other options mentioned.
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Old 09-07-2014, 09:28 AM   #114
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whippet201

Hi, I am planning on buying a new airstream in the next few weeks. My dream is to get the 2015 International Signature 23D travel trailer. My TV is a 2013 Mercedes ML350 Blue Tech. I was getting worried about towing capacity after reading some other posts on the issue, so it it very reassuring to hear it should not be an issue. Right? I currently tow a 2000 lb ALiner Expedition and I hardly know it is there. I just need reassurance I guess. Thanks.
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Old 09-09-2014, 09:23 PM   #115
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Quote:
Originally Posted by kimdrautz View Post
Jmpgino - I haven't pulled my Airstream with my Benz yet, but will reply again in a week when I make my way from Denver back to Des Moines. I've had my 2014 GL Bluetec for about 2 months and on a recent trip to Chicago towing a smaller two wheel trailer with a golf cart, I didn't lose any MPG...still maintained 28mpg entire trip. I know I'll lose more pulling the AS, but I would be doubtful I drop below 20. We shall see. I'll update and let you know next week.


Iowa Girl

Hi - I got 24mpg on the way to Denver, going 80mph almost the entire way, no trailer attached. On the way home, I kept steady at 75mph, towing my 19' International and got 15 mpg.


Iowa Girl
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Old 09-09-2014, 09:44 PM   #116
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Quote:
Originally Posted by kimdrautz View Post
Hi - I got 24mpg on the way to Denver, going 80mph almost the entire way, no trailer attached. On the way home, I kept steady at 75mph, towing my 19' International and got 15 mpg.


Iowa Girl

Why so fast? 120km/h? There's a sweet spot in engine efficiency typically around 65 or slightly lower (~102km/h). That small decrease makes a significant difference in economy.....not to mention it's safer for towing, especially with a light single axle.
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Old 09-15-2014, 11:12 AM   #117
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So towing with this diesel engine at between 60 and 65 mph with a 20 footer, I would expect a mpg return of around 22, ten miles per gallon better than now.
My friend has the Jeep diesel and is towing a 25 footer and getting around 19 mpg. Wider, higher and heavier are obvious reasons for his loss in mpg.
We are relatively flat here and many of you up North are in hilly if not mountainous areas and that is where the fuel is consumed in quantity.
Going down to Florida soon, a very flat drive all the way. I am keen to see what the Tahoe does on that journey.
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Old 09-25-2014, 09:52 PM   #118
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Old 09-26-2014, 09:37 AM   #119
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V6 diesel engine not available for next model year for the ML class in the US.

A 4 cylinder turbo diesel will be the diesel choice.

The V8 turbo diesel option for the GL is not available in the US either.
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Old 09-26-2014, 10:43 AM   #120
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Mercedes ML350 Bluetec

Quote:
Originally Posted by switz View Post
V6 diesel engine not available for next model year for the ML class in the US.



A 4 cylinder turbo diesel will be the diesel choice.



The V8 turbo diesel option for the GL is not available in the US either.

I've heard that, but have you seen power figures? The Blutec is such a good seller on the ML I would be very surprised if they didn't find very close to V6 power numbers in the 4 diesel before switching. The efficiency will be greater but I would be interested in seeing TRQ/HP numbers.

Mercedes is making 360Hp/330trq out of a 2L 4 cylinder petrol engine so I can imagine they could make very decent power out of a small displacement diesel.
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Old 09-26-2014, 10:54 AM   #121
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I have the 2.1L BT inline 4 in my 2014 E-250 and love it. I am getting close to 50 MPG on the Hwy on a routine basis. I would consider an ML250 as I have previously test driven the GLK250 and found it lacking in some creature comforts like the Dynamic Multicontour seats (with massage!) that are available in the ML and E-Class.

Not sure I would want to tow my 4600lb Safari with it, but it is within specs. the ML250 I4 Bluetec has 200 hp and 369 lb-ft of torque vs 240 hp and 455 lb-ft of torque for the outgoing V6 bluetec. A little lacking in the HP perhaps, but plenty of torque. The inline engines excel in that regard. The Optional hitch is a Class III.

I have seen reports of 33 MPG HWY but the official EPA numbers have not yet been released. But that is likely up significantly from the 28 MPG HWY for the current model.

Note that MB has a lot of faith in this little engine and is now equipping the 2500 Sprinters with it as well. AS has yet to release a 4 cyl Interstate, but reports are coming in from Roadtrek Agile owners of excellent mileage ranging in the 30's.

As far as I know, all 2.1L drivetrains come with the 7 speed auto, and ECO start/stop. Works pretty well as far as I can tell.
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Old 09-26-2014, 11:15 AM   #122
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Are they changing platforms for the next ML? Your E250 weighs ~800lbs less than the current ML350...the smaller diesel will take some weight out of that delta but they will have to remove a bit more from the rest of the vehicle for a similar driving experience.
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Old 09-26-2014, 11:24 AM   #123
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Cory, see my revised comments above... The ML chassis remains the same going into 2015. And obviously, the RT Agile is a heavy vehicle as well... A word of advice for those considering a 2500 Sprinter, the 2015 chassis which is just being introduced, will come standard with Crosswind Assist. Well worth waiting for. Not sure if that's available in the ML, but I believe it is in the GL.

When shopping for a Class B, I test drove the 2.1L Agile w 7sp and it was OK. I went with the larger 3500 chassis and V6 Bluetec 5sp based RT Adventurous CS. Interestingly, I had learned that Crosswind Assist was not going to be offered in the 3500 so we went ahead with the purchase prior to the intro of the 2015 chassis but we did wait for the 2014.5 models with the upgraded safety options like BLIS and Lane Keeping Alert.
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Old 11-04-2014, 12:17 PM   #124
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Bluetec update.

Well as I posted before, I have been considering a Bluetec ML350. It is a 2012, with 42k on is. Dealer wants $44,500 and quite honestly I think I will stick with my Tahoe.
Pulling a 20 footer up into NC mountains I got 13.5 MPG. We are going to get a 25 footer next year and I will see how she handles the new model.
One thing for sure I can buy a hell of a lot of gas for $44,500 even at $5 a gallon. The return % increase on MPG just does not ring my bell. I was back home in England last month and met two blokes who had Diesel vans, they were getting 65 MPG.
THIS BLOODY GOVERNMENT HERE IS THE CAUSE FOR OUR POOR MPG, Europeans expect a return in the high 30's for a gas engine as well.
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Old 11-04-2014, 12:27 PM   #125
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This people who elect this bloody government here got tired of air so dirty they could hardly see across the street. We declared independence from Europe in 1776 and have been making our own rules ever since.
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Old 11-04-2014, 12:57 PM   #126
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Driving down into Los Angeles in the 1960s was unforgettable

But Euro smog requirements seem better than ours. No doubt to do with trade restrictions more than health. Burning more to pollute less offers no other explanation.



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