M-Class (W166) Produced 2012-2015

Will the hitch affect rear end crash safety and crumple zone?

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Old Nov 29, 2011 | 12:51 AM
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Exclamation Will the hitch affect rear end crash safety and crumple zone?

Hi All,

I am about to order the 2012 ml bluetec. The most beautifully made SUV ive ever driven. We test drove over 40 vehicles before picking this one.

This is a question that stumped the dealers and the techs. Apparently the crash tests are not conducted with optional equipment, hitch, panoramic sunroof etc etc.

Common sense tells me yes. (Rigid, non mobile, non crumple-ing)

Please provide your input. If there are any engineers who have worked these projects please do share.
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Old Nov 29, 2011 | 02:08 PM
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240 views and no takers?
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Old Nov 29, 2011 | 02:30 PM
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I will just put in my 2 cents and say that no, it will not affect rear end crash safety. This is definitely not based on my knowledge of vehicle engineering but purely based on Mercedes-Benz's track record for safety. I don't think they would allow an option on the ML that would make it unsafe compared to an ML without that option.

40 vehicles? Is that an honest number? Seems like a lot of test driving. Regardless, you made the right choice
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Old Nov 29, 2011 | 03:34 PM
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If you get rear-ended by something little, Toyota Corolla-like comes to mind, the little car will take the worst of the encounter. Based on our 1989 Tropper II with a solid steel rear bumper and steel pan around the fuel tank being rear-ended twice by little cars. The hitch on the ML will act like the bumper on the Tropper. The little car will look like a safe fell on it.

Wayne
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Old Nov 29, 2011 | 04:58 PM
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Originally Posted by lboudreau
I will just put in my 2 cents and say that no, it will not affect rear end crash safety. This is definitely not based on my knowledge of vehicle engineering but purely based on Mercedes-Benz's track record for safety. I don't think they would allow an option on the ML that would make it unsafe compared to an ML without that option.

40 vehicles? Is that an honest number? Seems like a lot of test driving. Regardless, you made the right choice
thanks for the reply!

YES it is true +/- 2, everything from Jag to Jeep Grand Cherokee this expedition for a car almost led to me losing what is left of my sanity.

top 3:

1) 750 I X DRIVE
2) ML BLUE TEC
3) GX 460 tie X5


(BTW Is the chasis of the jeep grand cherokee have any shared parts with that of the ML. They may have shared components prior to the divorce? Pacifica and that mercedes version of the pacifica come to mind.
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Old Nov 29, 2011 | 06:12 PM
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Originally Posted by 300DTurbo
thanks for the reply!

YES it is true +/- 2, everything from Jag to Jeep Grand Cherokee this expedition for a car almost led to me losing what is left of my sanity.

top 3:

1) 750 I X DRIVE
2) ML BLUE TEC
3) GX 460 tie X5


(BTW Is the chasis of the jeep grand cherokee have any shared parts with that of the ML. They may have shared components prior to the divorce? Pacifica and that mercedes version of the pacifica come to mind.
Well you certainly have more patience then I do if you test drove that many. I've been a Benz fan for my whole life the choice was easy, but that isn't the case for everyone.

I believe the Cherokee may have a few parts from the ML in it. But I wouldn't sweat it. The shop foreman (at my dealer) and I were talking about the W166 and he had only but positive things to say about it's build quality and design (this coming from a guy who's been working with Mercedes for over 32 years, and someone who I've trusted with my vehicles for over 7 years) I've owned and driven many different Mercedes in my short life, and the new ML just exudes quality and craftsmanship.
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Old Nov 29, 2011 | 11:11 PM
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Will be going in tomorrow to place the order.
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Old Nov 29, 2011 | 11:19 PM
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Originally Posted by lboudreau
I will just put in my 2 cents and say that no, it will not affect rear end crash safety. This is definitely not based on my knowledge of vehicle engineering but purely based on Mercedes-Benz's track record for safety. I don't think they would allow an option on the ML that would make it unsafe compared to an ML without that option.
I agree - German engineers are fanatical, and they would not let the vehicle be compromised by an option.
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Old Nov 29, 2011 | 11:25 PM
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I would agree that the engineers are fanatics, as my 300D starts the same today as the day we drove it off the lot.

However, my confidence was rocked at its foundation by the 1st generation ML. Which was a despicable disgrace to the MB name.
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Old Nov 30, 2011 | 10:50 AM
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Originally Posted by 300DTurbo
This is a question that stumped the dealers and the techs. Apparently the crash tests are not conducted with optional equipment, hitch, panoramic sunroof etc etc.
MB tests options/accessories, yes. They even test interior options such as rear-seat entertainment to ensure parts don't come loose in a crash. The various safety agencies (ie: NHTSA) generally only test one model with typical equipment.
Originally Posted by 300DTurbo
Pacifica and that mercedes version of the pacifica come to mind.
The Pacifica and the R-Class have nothing in common except both being 4-door vehicles with a rear hatch.
Originally Posted by 300DTurbo
However, my confidence was rocked at its foundation by the 1st generation ML. Which was a despicable disgrace to the MB name.
Benz invented the luxury SUV segment with the ML. By today's standards it is not a great vehicle, but look at the competition that existed in 1997. If it wasn't for the success of that "despicable disgrace", you'd still be out test-driving.

Last edited by YYZ-E55; Nov 30, 2011 at 10:52 AM.
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Old Nov 30, 2011 | 10:56 AM
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Thank you for the input.

It should be known that the '12 Jeep Grand Cherokee and the '12 ML350 are in fact a joint venture and share portions of the Chassis and Design. This is the last vehicle that MB and Chrysler had a joint venture in.

Similarly if you do the research on the Pacifica you will see the similarities go FAR beyon 4 doors and a hatch.
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Old Nov 30, 2011 | 11:05 AM
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Originally Posted by 300DTurbo
Thank you for the input.

It should be known that the '12 Jeep Grand Cherokee and the '12 ML350 are in fact a joint venture and share portions of the Chassis and Design. This is the last vehicle that MB and Chrysler had a joint venture in.

Similarly if you do the research on the Pacifica you will see the similarities go FAR beyon 4 doors and a hatch.
I've previously posted the exact list of shared components between the Jeep GC and the ML. It is not extensive, and co-development ended at a very early stage.

And actually, the last vehicle impacted by the Daimler Chrysler situation is the MFA series (A/B-Class).
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