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Home > General > Potential Major Safety Issue |
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npinks Member Since: 28 Jun 2007 Location: Ls25 Posts: 20090 |
very interesting read, i beleive the Merc A Class had this problem, but needed more that a software up date to fix Former Mod/Member, with the most post & Chicken George Arch nemesis |
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21st Apr 2008 5:58 pm |
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ChrisC Member Since: 20 Feb 2008 Location: Essex Posts: 79 |
For me the fact that a Land Rover does not have as high a cornering speeds as an X5 is a selling point. I accept it limitations / compromises for the improved on road comfort and off road ability. I don't understand the X5 market, wanting an off road car with sports car handling at the expense of off road ability, it sound to me like a car that has lost its focus, or had none to begin with.
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21st Apr 2008 8:02 pm |
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riverr02 Member Since: 11 Aug 2007 Location: New York Posts: 62 |
I agree in part with ChrisC that the LR2/FL2 is not an X5, and do accept that it has to have some limitations given the design choices made to ensure its off-road capabilities. There's a saying that you can't make something foolproof, because you'd be surprised at how ingenious fools can be; you can't engineer every crash out of existence. I am also not saying that these safety mechanisms should allow one to drive recklessly or beyond the capabilities of the vehicle. However, there's no denying the utility of these safety mechanisms (ABS, traction control/DSC, airbags) in saving lives during emergency maneuvers. The rollover mitigation system should not be kicking in during routine driving to reduce the fun of driving on a daily basis. But if I need it because of a true emergency to avoid an accident, I want to know that every safety feature I believed I was getting with my new vehicle is working to help me and my family- and those around me- to survive.
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21st Apr 2008 8:50 pm |
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avtur Member Since: 11 Nov 2006 Location: Stockport Posts: 1306 |
I'd like to think that Land Rover's testing of the system was extensive, so would be interested to hear LR's reaction to this test.
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21st Apr 2008 9:06 pm |
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ChrisC Member Since: 20 Feb 2008 Location: Essex Posts: 79 |
Basically we are on the same wavelength, the problem is we don't know the limits and the design criteria of the Rollover mitigation system. i.e. if the cornering limit is 30mph, the system can mitigate up to 45mph, attempting it a 50mph cause problems. |
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21st Apr 2008 9:57 pm |
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Matei Member Since: 07 Feb 2008 Location: Galati Posts: 782 |
Maybe the system is calibrated to kick in in more difficult circumstances. While off-roading it is possible that the few inches would be more or less normal and there would be no need for the ESC to compensate. After all we have all seen photos with the FL2 with three wheels lifted (some of you have allready done this). Anyway I think that a brusque manoever at abt 90 Km/h is not recomended with any car. Anyway a comment from someone from LR would be nice. FREELANDER 2 TD4 SE (XS UK) IZMIR BLUE SIDE STEPS COLD PACK BI-XENON TINTED WINDOWS - AND PROUD OF HER |
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22nd Apr 2008 6:05 am |
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Matei Member Since: 07 Feb 2008 Location: Galati Posts: 782 |
The results of the test can aloso have other causes. I remmember a test done by a German paper on a Romanian made Renault (Logan) in which they said that the car capsized after brousque manoeuvers at 65 Km/h. There were several speculations : alloy wheels beeing too weak, a.so. After replicating the test after Renault protested it was discovered that the reason was that the tyres were worn out during the previous tests.
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22nd Apr 2008 6:21 am |
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gorjant Member Since: 10 Dec 2006 Location: Macedonia Posts: 65 |
I think this is a big issue and problem for Land Rover. They built in the Roll Stability Control system which should prevent this, and they advertise this, but obviously it doesn't work, So this is one more 'issue' that should be fixed but not as a rettle or some other other inconvenience but major safety issue. CR would not test if it was a situation that 'never' happens. It didn't rate it 'poor' for nothing. |
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22nd Apr 2008 7:06 am |
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npinks Member Since: 28 Jun 2007 Location: Ls25 Posts: 20090 |
riverr02
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22nd Apr 2008 8:21 am |
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Matei Member Since: 07 Feb 2008 Location: Galati Posts: 782 |
You'll find it here http://www.consumerreports.org/cro/cars/ne...lr2-ov.htm FREELANDER 2 TD4 SE (XS UK) IZMIR BLUE SIDE STEPS COLD PACK BI-XENON TINTED WINDOWS - AND PROUD OF HER |
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22nd Apr 2008 8:37 am |
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muddywheels Member Since: 02 Oct 2007 Location: East Riding of Yorkshire Posts: 939 |
See here:-
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22nd Apr 2008 2:09 pm |
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riverr02 Member Since: 11 Aug 2007 Location: New York Posts: 62 |
I agree with those of you who believe that this is a potentially serious problem. Sure, the argument could be made that they were going too fast for the rollover mitigation system to be effective. However, the important thing to keep in mind is that Consumer Reports, which is usually quite knowledgeable about safety features, did state that this is not normal behavior or in keeping with the behavior of other similar vehicles. That in itself tells you that there is likely a very real safety issue here. Now that's not to say that Consumer Reports has not erred before; look back to their retraction of their findings on car seats about a year ago. Nevertheless, they are usually correct in their assertions and I think that if this finding is confirmed, then we have a significant safety issue on our hands that has to be rectified.
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22nd Apr 2008 6:38 pm |
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ChrisC Member Since: 20 Feb 2008 Location: Essex Posts: 79 |
The important word here is "WE". The vehicle successful run through the maneuver at 51.5mph, but was this speed already beyond the limit for the car? What is missing from the text is if they managed to trigger the stability control at that speed, if they did pushing to 53 was foolish. WE means we think it should perform the maneuver faster, but is that what Land Rover think, and is that within the design constraints of the car, if it is then is a problem with the car, if not there is no issue here. All electronic stability aids ABS, ESC, Roll Stability Control etc can't change the laws of physics, they are purely an aid for the lesser driver (like me) to maintain the control of the car on or around IT'S limit. It's limit is a factor of many things design, tyres, condition, environment, and many many more, all of which effect the speed at which maneuvers can be performed. Pushing beyond the limits will result in loss of control, have a look at the Handbook under "Stability Control" in particular the warnings give to illustrate my point. |
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23rd Apr 2008 9:00 am |
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gorjant Member Since: 10 Dec 2006 Location: Macedonia Posts: 65 |
I think the important thing that they say is "...but because we think that no vehicle should ever display this behavior, we've rated the LR2's emergency handling as poor". As I understand this means that they think every new car (at least from the LR2 class) should be able to do this maneuver at this speed without loosing contact with the ground, as this would be not an abnormal thing to maybe try to avoid some sudden obstacle at that speed. So the RSC should be able to cope with this speed and it doesn't so there is a major safety flaw taht should be fixed. Maybe CR are wrong but... I would not buy freelander 2 bacuse of this (until it is resolved). Anyway also LR should comment on this. |
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23rd Apr 2008 9:16 am |
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