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Article Comments - 2009 Lexus RX400h vs. Mercedes-Benz ML320 Bluetech

48 messages,  Last post on Jul 23, 2009 at 8:23 AM

You are in the Lexus RX 400h Forum. Your Host is pf_flyer

What is this discussion about? Lexus RX 400h, Mercedes-Benz M-Class, Car Comparisons, Diesel, Hybrid Cars, SUV

Diesel Vs. Hybrid: We Debate Two Technologies - For most of our test, the 2009 Mercedes-Benz ML320 Bluetec led the Lexus in our comparison. (more)


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#28 of 48
Re: Reality check re: mpg [wwest] by jayrider
Dec 24, 2008 (2:39 pm)
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Replying to: wwest (Dec 24, 2008 10:53 am)

You lost me on that reply,wwest. Happy Holidays!
#29 of 48
Re: Reality check re: mpg [wwest] by cneff
Dec 28, 2008 (7:05 am)
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Replying to: wwest (Dec 24, 2008 10:53 am)

The ML has a full time AWD system Mercedes calls 4Matic with a 50/50 split (front/rear) for their SUVs in normal driving unlike others (Lexus, Volvo, Ford and more), that use FWD until slip is detected. It may take just a split second to detect slip but that split second could be the one that puts you in a ditch.
 
I had the previous generation ML and that had a truck frame - the new generation ML is a unibody (I have the diesel version) but is still more stout then the Lexus. Not smacking the Lexus, but, they are still very different vehicles. I don't take my ML off road but where I live I face bad winters with ice on the roads and large chunks of hard packed snow that can form small boulders or major bumps right on the road - for those that know what I'm talking about this can give any SUV a good test especially if you don't creep along.
 
Lexus is a great vehicle but for me I do feel more secure in the ML in severe conditions.
#30 of 48
Re: Reality check re: mpg [cneff] by wwest
Dec 28, 2008 (8:26 pm)
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Replying to: cneff (Dec 28, 2008 7:05 am)

The word at Lexus.com is that the upcoming 2010 RX3X0 is getting a new AWD system, maybe a fully functional one like the one in the GS350..?? Adopting the entire GS350 drive train would mean R/AWD, a final END to the infamous1-2 second transaxle downshift delay.
 
And maybe even the GS's new DFI V6 engine for improved FE.
 
The upcoming RXh is to have an Atkinson cycle V6 engine. I have always thought that couldn't be done except on a 4 cylinder engine, or with a positive displacement SuperCharger (Maxda Millenia S) to prevent reverse intake flow.
 
Anyone have any design details available on either...?? New AWD system for the RX or Atkinson cycle V6 for the RXh...??
#31 of 48
Re: Reality check re: mpg [cneff] by wwest
Dec 28, 2008 (8:33 pm)
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Replying to: cneff (Dec 28, 2008 7:05 am)

But dosen't the ML, even the new ML, remain dependent on its traction control braking/dethrottling system to apportion engine torque once wheelspin/slip is detected...?? I know the early versions did.
 
I'm pretty sure that the last time I visited an MB dealer I was told that unlike Toyota and Lexus their ABS pumpmotor did not have a timeout for protection with continuous TC or VSC activation. Didn't believe a word of that but....
 
I've always believed that the only advantage the ML's AWD system offers is its rear torque biasing, R/AWD, if you will.
#32 of 48
Re: Reality check re: mpg [wwest] by gyrusx
Jan 13, 2009 (11:14 am)
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Replying to: wwest (Dec 28, 2008 8:33 pm)

I had a 2005 Certified PO ML350 for about 22 days, I traded it in losing over 12k:
The vehicle maybe well engineered but the build quality is quite bad. I took too much for granted, and it is my fault. But I believe that absence of seatbelt sensors, open door sensors, open hatch sensors are essential safety issues I am not willing to compromise on. I bought it for my wife as she loved the styling. But two weeks of owner ship required new ball joints, new power steering fluid seal, rebalancing of tires (after being driven about 100 miles). The car got stuck in my driveway in about 3 inches of snow .
The car feels very solid but its 4wd system and off road capabilities are subpar.
I traded it in for an 06 RX 330 non certified from a non Lexus dealership. Lexus dealership is willing to offer a loaner for 30K service. The local MB dealer refused to provide loaner for the service that was covered under warranty and their shuttle driver had left, so we were left hanging 45 minutes from our home.
Just my experiences, but I would rather lose the money than compromise on safety, bring the car in to be looked at once a week, take a cab back home and deal with the rudest people at the MB dealership.
The 400h is a little noisy and its 4WD system is a little eclectic for my taste, but a 330 or 350 is a perfectly balanced car for my needs.
#33 of 48
Re: Reality check re: mpg [gyrusx] by cumminsdiesel
Jan 15, 2009 (12:56 pm)
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Replying to: gyrusx (Jan 13, 2009 11:14 am)

Hm, I had a 2005 ML350 a couple of years back. Granted, I leased it for only a year, still no complaints on my part in terms of mechanical performance.
 
P.S. Getting stuck in 3 inches of snow takes a good effort, ain't it? I used to have a pre-owned front-wheel drive Toyota Corolla with measly 14" wheels, and I sometimes had troubles getting up my icy hill (north-western NJ), but I don't ever recall getting stuck in three inches of snow...
 
Maybe it is the driver, not the vehicle?
#34 of 48
Re: Reality check re: mpg [cumminsdiesel] by asa2
Jan 29, 2009 (2:26 pm)
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Replying to: cumminsdiesel (Jan 15, 2009 12:56 pm)

The RX is a tin can compared to ML. My neighbor has the 07 RX and I have 08 ML. We had a bad ice/snow storm yesterday and she was ahead of me, fishtailing all over the place. I didn't even feel a thing. Also, I think it was the first time 4MATIC really had to "kick in"--When I went down a very steep hill, the car slowed itself so well without any brake, button, etc. It was absolutely amazing. The car almost seems to know what's going on around it.
 
I was a big fan of Japanese cars when I was younger but what someone wrote sooner about Toyota/Lexus denting easily is true. Did you ever notice almost every Camry on the road has a dented in corner on it's rear bumper? It becomes amusing once become aware of it.
 
After BMW and LandRover I am a Benz loyalist for life. Enjoy it much more than any other car I've owned.
#35 of 48
Re: Reality check re: mpg [cumminsdiesel] by wwest
Jan 30, 2009 (9:10 am)
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Replying to: cumminsdiesel (Jan 15, 2009 12:56 pm)

Around here 3" of snow often comes with an ICE layer underneath, pretty darn easy to get stuck.
#36 of 48
Re: Reality check re: mpg [asa2] by wwest
Jan 30, 2009 (9:16 am)
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Replying to: asa2 (Jan 29, 2009 2:26 pm)

"..The RX is a tin can compared to ML..."
 
....TIN CAN....
 
Sorry, but IMMHO the exact opposite is true.
 
Granted, the ML had a STELLAR R/AWD system in comparison to the RXes F/awd system, and most probably a fully functional climate control system, but by ALL other measures the RX series is OUTSTANDING in comparison.
#37 of 48
Re: Reality check re: mpg [wwest] by cumminsdiesel
Jan 30, 2009 (6:09 pm)
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Replying to: wwest (Jan 30, 2009 9:10 am)

"Often" is not "always." The original posting did not mention anything about ice, just three inches of snow.

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