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Acura MDX 2007
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Comments
I've had it into the dealership multiple times, they've checked the alignment, tire pressure etc but can't seem to find an answer. One possibility offered was that since I upgraded to the 19 inch wheels, the tires are more aggressive and the walls are smaller, making bumps and imperfections in the road more of an issue. However, I find if there is even the slightest imperfection in the road the steering wheel is almost jumping out of my hands. Anyone else experiencing this, especially with the 19" wheels? Any suggestions or ideas?
I would like to offer two guesses:
1) aggressive tires: some tires have more tendency to follow gaps and seams on the road. This is especially true for tires with wide center channels.
2) the new MDX might need a bit of toe-in to follow straight-line better. Usually 1 degree is normal and sufficient. Ask your dealer for the recommended setting from Acura.
http://alldata.com/tsb/Acura/1168588800000_1169452800000_06-034/index.html
It covers all 99-07 vehicles. Good luck!
End result is more or less the same. And I agree that a dealer isn't likely to mess with it.
In don't have a link handy, so read up on the 2nd gen TL and TL-S. The base model used a speed-sensing design, while the Type S got torque-sensing. With a little digging, you may find a better explanation of the difference between the two designs.
Regardless, it is highly unlikely that people looking to reduce assist at lower speeds will get any help at dealerships. It’s a part of the design (greater assist at lower speeds, and reduced assist at high speeds).
Unfortunately, Acura's media site doesn't provide much detail. This is all that has to say on the subject.
The 3.2 TL features a speed-sensitive, variable power assist system designed to complement the model's handling characteristics.
By varying the amount of power assist according to vehicle speed, the system provides light steering effort during low-speed parking maneuvers and, as vehicle speed builds, progressively heavier steering effort for a positive and secure feel.
The TL Type-S is equipped with an exclusive sport-tuned, power steering system (similar to the CL Type-S). The Type-S uses a torque-sensing rotary valve steering gear that varies the amount of assist according to steering input and the resultant torque generated between the pavement and tire. The system also varies assist based on engine speed, helping make steering light in parking maneuvers and heavier as speed increases for enhanced road feel.
Might be a good question for Shawn.
The "lock" feature available with VTM4 not only locked the torque output 50/50 fore and aft, it also locked the rear axle half-shafts in a 50/50 spread. While this is something you would never want to happen on dry pavement, it does give the vehicle an advantage on slick or loose surfaces.
On old-school "four-by-fours", they would add devices known as lockers for the same reason. Here's an example of an air-powered locker.
SH-AWD can send power left and right between the rear axles, but I've read nothing which suggests the system is programmed to lock the rear half-shafts when one side slips. It is far more likely the VSA system will instead clamp on a slipping wheel using the brakes. That action send power back across the differential to the wheel on the other side. If that other wheel starts slipping, VSA will reduce power from the engine.
This combination of SH-AWD and VSA is very effective when the vehicle in on the road and has some momentum. It'll help keep you from hitting the guardrail. But at low speeds when climbing over rocks and such, it's just a likely to get you stuck.
Paying taxes, tag, bank fee up front. -TC
1. how many people can access different types of entertainment at one time, eg, is it two people in the back plus the front seat occupants?
2. can a front seat occupant use the headphones to listen to music either from a CD/DVD or radio (terrestrial or XM)?
3. will the system play home produced DVD's, eg, TV programs captured and burned?
Many thanks.
Is the 2007 MDX base suspension exactly the same as the Comfort mode in the sport model? Or is it somewhere between Comport and Sport mode?
Thanks
we've trying to see if other than being perforated, is there any other difference between leather in the sport package vs. non-sport. We keep seeing that the sport has "premium full-grain" leather. Does non-sport have a different grade leather?
Thanks
And yes, best to see for yourself and test drive both.
Regarding gas consumption. It's normal for this size of SUV.
I do get the rated EPA numbers.
Never reset the "B" odo --> 18.5 mpg.
Not a whole lot about snow performance (other than one or two favorable remarks), but here's an article about SH-AWD on a track covered with ice and a few inches of snow for good measure. Props to Chas2 for finding it.
http://www.thestar.com/Wheels/article/187265
Didn't have a chance to try on tougher conditions but typically you want to have appropiate snow/traction tires in these conditions anyway (regardless of AWD).
Also turning off VSA can help a lot if it keeps blocking the tires and you don't gain any speed. Once you're moving it's safer to turn it on again.
You can see some sample fuel economy on truedelta.com. I do get the EPA numbers (16-17 in town, 21-24mpg on highway).
www.acura.ca
The packages are different too. We just purchased an MDX and pick it up later this week.