Itsmyfirstsuv
Member
Forgive me for my newbie question, but how would you put the car in AWD lock?..the only buttons I see are the Snow or VDC buttons.
Snow Mode and VDC??
- Thread starter faithy
- Start date
Forgive me for my newbie question, but how would you put the car in AWD lock?..the only buttons I see are the Snow or VDC buttons.
The 2003's have "AWD Lock" instead of "Snow Mode". 2004 and beyond don't have "AWD Lock". While technically they're a little different in technology, you can think of them as pretty much the same thing. So, think of it as the same thing.
Itsmyfirstsuv
Member
Ah, ok. Thanks. Was wondering why I couldn't see an AWD button. Lol.
I'm kind of worried now after reading some of these posts. So I shouldn't leave the car in snow mode all the time? This year MN has been hammered with snow (we beat our record for the month of dec.) and I've left snow mode on for a while now (say for the past 3-4 weeks). I'm also driving with it on at 50-60mph, don't the snow mode goes off above 12mph?
Am I f*cked? I haven't noticed anything wrong yet (knock on wood)...
Am I f*cked? I haven't noticed anything wrong yet (knock on wood)...
I've been using snow mode almost exclusively since Nov 15.
Snow mode is much more than just locking the center differential, which it doesn't even do that.
From what I believe, the center differential locks from stop up to 18-20 mph and then reverts to normal attesa function. A more obvious effect I'm sure you've observed is that it lessens throttle sensitivity.
The snow mode can be engaged or disengaged at any speed, left engaged on any driving surface for as long (or as short) as you wish to leave it engaged.
Your rev limiter will still protect the engine even in snow mode so going over 25 shouldn't be an issue Iv'e done it plenty of times.
Simplified: the fx will be rwd until it detects slip at which time it will engage the forward wheels and be in awd mode until the slipping is over.
Marker1030
Member
Having issues drive my FX35 in the snow
Driving my FX35 2008 in the snow is very bad, I have new all weather tires and the car jusr spins. The front wheels did not engage or spin. Is this a isse with the car. The dealer says it ok.
Thanks
Driving my FX35 2008 in the snow is very bad, I have new all weather tires and the car jusr spins. The front wheels did not engage or spin. Is this a isse with the car. The dealer says it ok.
Thanks
I never really had an issue driving in the snow with my FX35. How fast are you driving? have you used the snow button when you drive over heavy snow?
Marker1030
Member
Hello, its bad, I tryed the snow mode off and on, the VDC mode off and on, I cant drive it in the snow. Going back the the dealer in the morning. It was so bad today I had to drive a XC90 to work. I'm very disapported in the car, just in snow, on dry roads it fun to drive.
Thanks,
For some reason I thought the car was always in AWD. THeres no way for me to manually engage it.
THanks,
-J.
ATTESA-ETS
The Electronic Torque Split version of this all-wheel drive architecture was developed for usage in Nissan's vehicles with a longitudinal drive train layout, and was first used in August 1989 in the R32 Nissan Skyline GT-R and Nissan Skyline GTS4. Although the Skyline GT-R is exclusively AWD, ATTESA-ETS is also used in Nissan models that are also available as RWD, such as the A31 Nissan Cefiro which was the second Nissan to feature the system exactly a year later in August 1990, and vehicles based on the Nissan FM platform (which are sold in certain markets under the Infiniti luxury brand).
It utilizes what is mostly a conventional RWD gearbox. Drive to the rear wheels is constant via a tailshaft and rear differential, however drive to the front wheels is more complex by utilizing a transfer case at the rear of the gearbox. The drive for the front wheels comes from a transfer case bolted on the end of an almost traditional RWD transmission (although the bell housing is slightly different to allow the driveshaft for the front wheels to pass it, the main body is exactly the same as the RWD transmission, the tail-shaft is different to couple to the transfer case). A short driveshaft for the front wheels exits the transfer case on the right side. Inside the transfer case a chain drives a multi-plate wet clutch pack, torque is apportioned using a clutch pack center "differential" (the system thus does not involve a regular gear differential as in a full-time 4WD layout, but rather a center clutch), similar to the type employed in the Steyr-Daimler-Puch system in the Porsche 959. On the rear differential is a high pressure electric oil pump, this pump pressurises Normal ATF oil (0-288psi) into the transfercase to engage the clutchpack. The higher the oil pressure the transfer case is supplied with, the more the clutch pack engages, this is how the torque to the front wheels is varied. The transfer case has its own dedicated ATF (Nissan special ATF) oil to lubricate the chain/clutch pack. The front driveshaft runs along the right side of the transmission, into a differential located on the right of the engine's oilpan. The front right axle is shorter than the left, as the differential is closer to the right wheel. The front left axle runs through the engine's sump to the left wheel. Video of ATTESA system components
The ATTESA-ETS layout is more advanced than the ATTESA system, and uses a 16bit microprocessor that monitors the cars movements at 10 times per second to sense traction loss by measuring the speed of each wheel via the ABS sensors. A three axis G-Sensor mounted underneath the center console feed lateral and longitudinal inputs into an ECU, which controls both the ATTESA-ETS 4WD system and the ABS system. The ECU can then direct up to and including 50% of the power to the front wheels. When slip is detected on one of the rear wheels (rear wheels turn 5% or more than the front wheels), the system directs torque to the front wheels which run a viscous LSD. Rather than locking the AWD in all the time or having a system that is "all or nothing", the ATTESA-ETS system can apportion different ratios of torque to the front wheels as it sees fit. This provides the driver with an AWD vehicle that performs like a rear wheel drive vehicle in perfect conditions and can recover control when conditions aren't as perfect. From factory, the system is set up to provide slight oversteer in handling, and in fact the harder the car is cornered the LESS the 4wd system engages the front wheels. This promotes the oversteer rather than understeer which is apparent in most AWD/4WD vehicles. The advantage to a more traditional ATTESA (Viscous LSD) system is response in hundredths of a second.
The Electronic Torque Split version of this all-wheel drive architecture was developed for usage in Nissan's vehicles with a longitudinal drive train layout, and was first used in August 1989 in the R32 Nissan Skyline GT-R and Nissan Skyline GTS4. Although the Skyline GT-R is exclusively AWD, ATTESA-ETS is also used in Nissan models that are also available as RWD, such as the A31 Nissan Cefiro which was the second Nissan to feature the system exactly a year later in August 1990, and vehicles based on the Nissan FM platform (which are sold in certain markets under the Infiniti luxury brand).
It utilizes what is mostly a conventional RWD gearbox. Drive to the rear wheels is constant via a tailshaft and rear differential, however drive to the front wheels is more complex by utilizing a transfer case at the rear of the gearbox. The drive for the front wheels comes from a transfer case bolted on the end of an almost traditional RWD transmission (although the bell housing is slightly different to allow the driveshaft for the front wheels to pass it, the main body is exactly the same as the RWD transmission, the tail-shaft is different to couple to the transfer case). A short driveshaft for the front wheels exits the transfer case on the right side. Inside the transfer case a chain drives a multi-plate wet clutch pack, torque is apportioned using a clutch pack center "differential" (the system thus does not involve a regular gear differential as in a full-time 4WD layout, but rather a center clutch), similar to the type employed in the Steyr-Daimler-Puch system in the Porsche 959. On the rear differential is a high pressure electric oil pump, this pump pressurises Normal ATF oil (0-288psi) into the transfercase to engage the clutchpack. The higher the oil pressure the transfer case is supplied with, the more the clutch pack engages, this is how the torque to the front wheels is varied. The transfer case has its own dedicated ATF (Nissan special ATF) oil to lubricate the chain/clutch pack. The front driveshaft runs along the right side of the transmission, into a differential located on the right of the engine's oilpan. The front right axle is shorter than the left, as the differential is closer to the right wheel. The front left axle runs through the engine's sump to the left wheel. Video of ATTESA system components
The ATTESA-ETS layout is more advanced than the ATTESA system, and uses a 16bit microprocessor that monitors the cars movements at 10 times per second to sense traction loss by measuring the speed of each wheel via the ABS sensors. A three axis G-Sensor mounted underneath the center console feed lateral and longitudinal inputs into an ECU, which controls both the ATTESA-ETS 4WD system and the ABS system. The ECU can then direct up to and including 50% of the power to the front wheels. When slip is detected on one of the rear wheels (rear wheels turn 5% or more than the front wheels), the system directs torque to the front wheels which run a viscous LSD. Rather than locking the AWD in all the time or having a system that is "all or nothing", the ATTESA-ETS system can apportion different ratios of torque to the front wheels as it sees fit. This provides the driver with an AWD vehicle that performs like a rear wheel drive vehicle in perfect conditions and can recover control when conditions aren't as perfect. From factory, the system is set up to provide slight oversteer in handling, and in fact the harder the car is cornered the LESS the 4wd system engages the front wheels. This promotes the oversteer rather than understeer which is apparent in most AWD/4WD vehicles. The advantage to a more traditional ATTESA (Viscous LSD) system is response in hundredths of a second.
NJ-R'sFX35
Member
:tonguey:Marker1030
Member
thank you for the input, i have another appointment at the Inifiniti dealer in the morning to go over this.
Mark
Mark
could it not be the tires? all weather tires can only do so much in the snow. wait..do you mean there's no difference at all when you turn the snow mode on?
if there is snow outside, I have snow mode on, no matter if I'm driving through the sub or on the highway going 80. I assume VDC only activates when the orange slippery light comes on, but the car drives awesome in the snow without notification of VDC going off....it is was really only RWD and only activate VDC on slip, then it would be all over the snowy road, but it's not. There is something else going on here that is making the car really good in snow....at least for me.
also my tires are 60% worn.
also my tires are 60% worn.
Snow Mode - what a wonderful control to have. In Dallas, Tx the past two days I've driven on straight ice in snow mode. I love it when you trump on the gas on ice I can feel the tires grip and push the car forward instead of sideways.
Slip - I do not like the slip feature although I don't mind haven't it in this situation. Sometimes I just want to burn rubber and try to drift especially when the roads are damp. lol.
Slip - I do not like the slip feature although I don't mind haven't it in this situation. Sometimes I just want to burn rubber and try to drift especially when the roads are damp. lol.
Marker1030
Member
Thanks for the info, I'll going to the dealer to see if its me or my FX35, I do love the car os i'm hoping its me. We have more that 70 inches of snoe onthe ground now.
thanks again
Mark
thanks again
Mark