Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
2.1. Access, protection
2.2. Elements of security systems
2.3. Car equipment, arrangement of devices and governing bodies
2.4. Comfort
2.5. Methods of operation
2.5.1. Main cautions
2.5.2. Features of operation of the car equipped with the three-functional catalytic converter
2.5.3. Running in of the new car
2.5.4. Gas station of the car
2.5.5. Control operations
2.5.6. Transportation of goods, towage of the trailer
2.5.7. Start of the engine
2.5.8. Features of driving of the car with automatic transmission
2.5.9. Use of the all-wheel drive mode
2.5.10. Instructions for use control system of speed (tempostaty)
2.5.11. Recommendations about fuel economy
2.5.12. Parking of the car
2.5.13. System of hydrostrengthening of a wheel (GUR) - the general information
2.5.14. Brake system
2.5.15. Councils for driving in various conditions
2.5.16. Care of the car and operation in the conditions of winter
2.6. A mode of operation in emergencies
3. Routine maintenance
4. Engine
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
 












2-5-9-ispolzovanie-polnoprivodnogo-rezhima.html

2.5.9. Use of the all-wheel drive mode

Turn off the modes 4H and 4LO at movement along roads with a dry hard coating.

If at the movement on a dry hard coating the control lamp of the all-wheel drive mode 4WD lights up (see the Head of the Cooling system and heating), then in the AUTO and 4N modes it is necessary to transfer the switch of the all-wheel drive mode 4WD to situation 2WD, in the mode 4LO it is necessary to stop the movement, to switch AT to situation "N" and only after it to transfer the switch 4WD to situation 2WD — at the first opportunity drive away the car on car repair shop for performing the corresponding diagnostics and performance of necessary recovery repair.

Full-regime systems 4WD allow to choose one of four possible provisions of the transfer case (AUTO, 2WD, 4N and 4LO). The choice of the mode is defined by road conditions.

The order of change of the modes is given in the table.

For inclusion of the mode 4LO it is necessary to press the switch handle. For inclusion and switching off of the mode 4LO the car has to be stopped, and transmission is transferred to situation "N".


Position of the switch
4WD

Driving wheels Mode of functioning of the light indicator / control lamp Conditions of application of the mode Procedure of switching
Light indicator of the modes of the transfer case Control lamp of position 4LO of the transfer case

Back wheels, or all wheels

 

Movement along paved roads or roads with a slippery covering

2WD> AUTO> 4H
The control lamp of switching of 4WD allows to control the chosen position of the transfer case
Transfer of the lever of the AT selector to situation "N" during these switchings is not an indispensable condition.
Carry out switchings at the movement on a straight line.

Back wheels

 

For movement along paved roads or roads with a dry covering (economy mode), and also when conducting testing within THAT with application of a static dynamometer

All wheels

 

For the movement on stones, sand and snow-covered roads

Neutral situation

Can blink *

At neutral situation there is a shutdown of the AT parking mode that is accompanied by danger of rolling the car — do not leave the transfer case in neutral situation

1. Stop the movement.
2. Transfer the AT selector lever to situation "N".
3. Press the handle of the switch 4WD and transfer it to situation 4LO or 4N.
Without preliminary stop of the car and switching of transmission in situation "N" transfer of the switch to one of the stipulated provisions is not possible. **

All wheels

 

It is activated

If necessary to develop the maximum traction effort (for example at the movement on a steep slope, the stony, sandy or strongly polluted area)


* If after implementation of the table of the procedure stipulated in the corresponding column the control lamp of 4LO continues to blink, follows will continue the movement with a small speed and to try, whenever possible not to make sharp maneuvers until the lamp does not pass the mode of a continuous luminescence, or does not go out.
At the movement in the mode 4LO try not to make sharp accelerations and turns in order to avoid excessive wear of gear wheels and damage of the drive.


** Track serviceability of operation of a control lamp of 4LO at transfer of the switch 4WD to the relevant provision.


Precautionary measures

  • At the parking of the car do not forget to cock the parking brake before switching off of the engine and watch that the control lamp of 4WD was activated, and the lamp of the Pacific Rim is extinguished, otherwise the car can spontaneously start moving even in spite of the fact that the lever of the selector is transferred to situation "P"!
  • Never make switching between the modes 4LO and 4N during the movement!
  • Situation 4H provides the increased traction effort and the best coupling with the road — try to move with speeds no more than 80 km/h!
  • Situation 4LO provides the maximum traction effort and the best coupling with the road — try to move with speeds no more than 50 km/h!
  • The switch 4WD can be transferred to provisions 2WD, AUTO and 4N at the rectilinear movement — do not try to make switchings at the movement by a backing or at commission of turns, it is equal as during abrupt descents / rises with pro-slipping of back wheels!
  • The movement in the modes 4H and 4LO on a dry hard coating is accompanied by noticeable increase in a noise background and is fraught with premature wear of protectors — pass into the mode 2WD or AUTO!
  • Use of differential of limited sliding (LSD) provides to the car the increased passability in cross-country conditions due to increase in characteristics of coupling with the soil, however is accompanied by increase in level of vibrations and squeal of tires at movement along paved roads!
  • At low temperatures there can be problems with switching of the transfer case between provisions 4H and 4LO. The control lamp of situation 4LO can begin to blink even the included all-wheel drive mode. The short run with a small speed and without commission of maneuvers allows to carry out switching between provisions 4H and 4LO!


Use of the modes 4WD at the movement in cross-country conditions

By means of the switch 4WD choose corresponding from the all-wheel drive modes of the transfer case (AUTO, 4N or 4LO).

Move slowly, proportioning speed to road conditions.

For release of the got stuck car enclose flat stones or wooden beams under wheels and switch the transfer case to the mode 4H or 4LO and try to shake the car, alternately including a lobby, the reverse gear. In case of need use wheel chains. Try not to allow provorachivaniye of wheels with a high speed as it you bring е to stronger deepening them into liquid dirt, sand or snow.


Rules of use of the switch of the modes of the transfer case

Location of the switch of the modes of the transfer case — see the illustration Scheme of an Arrangement of Governing Bodies on the car dashboard.

The choice of the mode from four possible (2WD, AUTO, 4N and 4LO) is made according to road conditions.

In position of AUTO change of distribution of torque between lobbies and back driving wheels is made automatically depending on change of road conditions, at the same time the following ratio takes place: 0:100 (2WD)> 50:50 (4WD), allowing in an essential measure to increase stability of the movement.

Use of the switch in the AUTO, 4N or 4LO mode during turn commission, at acceleration / braking by the engine or switching off of ignition can cause breakthroughs that is norm and should not cause concerns.

Transfer of the lever of the AT selector to situation "N" or "P" at a car stop after commission of turn can lead to the easy twitching of the car connected with switching off of coupling of the transfer case.


Precautionary measures

  • Do not make switching of the transfer case between the modes 2WD, AUTO and 4N during commission of turns, at the movement by a backing or on an inclined surface!
  • In order to avoid damage of internal components before transfer of a box to the mode 4H of the mode 2WD or AUTO check that the speed of the movement of the car did not exceed 80 km/h!
  • Do not make switching of a box between the modes 4LO and 4N during the movement at all!
  • Remember that at the cold engine its single turns are a little raised — observe extra care at the movement on a slippery or loose covering with the included AUTO mode!


Light indicator of the modes of the transfer case

The light indicator of the modes of the transfer case is built in the tachometer dial (see the illustration Scheme of an Arrangement of Elements of a Combination of Devices) and has to quickly (for 1 second) to work at inclusion of ignition, confirming thereby serviceability of functioning of the corresponding system.

At the started engine the indicator serves for display of the mode of the transfer case chosen by means of the lever of the selector or the switch 4WD (see above).

Switching of the modes can cause an indicator blinking, however upon completion of the choice it has to pass into the mode of a constant luminescence. If the indicator continues to blink after completion of switching, it is necessary to be passed a little forward with acceleration or a deseleration, or to be passed by a backing, then to repeat the procedure of switching of the mode of the transfer case.

Activation of a control lamp of 4WD (see below) has to be followed by shutdown of the light indicator of the modes of the transfer case.


Precautionary measures

  • In cold weather the choice of the AUTO mode can be followed by the indication 4H of the light indicator (see the table of switchings of the transfer case given above). At the same time distribution of torque between lobbies and back driving wheels of the car will correspond to the mode 4H, is accompanied by risk of emergence of a phenomenon of sharp braking and difficulties at commission of turns! Later short time the indicator (and the transfer case) has to switch in the AUTO mode.
  • If in cold weather the indicator shows situation 2WD at the chosen AUTO or 4N mode, the probability of spontaneous switching of a box in the mode 2WD is not excluded. If after a while the situation does not improve and the indicator will not begin to issue the correct indication, the car should be driven away on car repair shop.


Control lamp of the all-wheel drive mode


Scheme of functioning of a control lamp of the all-wheel drive mode

The control lamp is built also in a tachometer (see the illustration Scheme of an Arrangement of Elements of a Combination of Devices), quickly works at inclusion of ignition, confirming thereby serviceability of the functioning, and has to go out right after implementation of start of the engine — the refusal of a lamp of switching off or its transition to the flashing mode demonstrates violation of serviceability of functioning of system 4WD.

Operation of a control lamp in neutral position of the transfer case, means need of the transfer of the switch 4WD to situation 4H or 4LO.

Activation of a control lamp has to be followed by shutdown of the light indicator 4WD (see above).

The overheat of gearbox oil in the transfer case leads to operation of a control lamp in the flashing mode with a frequency about two gleam a second (see the illustration Scheme of Functioning of a Control Lamp of the All-wheel Drive Mode) — the car should be parked immediately in the safe place and to continue the movement only after the lamp goes out.

Slow (about one gleam in two seconds) lamp blinkings during the movement the considerable difference in the diameters of forward and back wheels can be the reason (see the illustration Scheme of Functioning of a Control Lamp of the All-wheel Drive Mode) — switch in the mode 2WD and try to move not too quickly, at the first opportunity change wheels.


Precautionary measures

  • At operation of a control lamp in the continuous mode during the movement or in the redkoprobleskovy mode after a stop the car follows at the first opportunity to drive away on car repair shop!
  • Try to avoid switchings of the transfer case between provisions 4H and 4LO at the burning control lamp of 4WD!
  • Activation of a control lamp can mean that the car moves in the mode 2WD in spite of the fact that the switch 4WD is transferred to position of AUTO or 4N — observe extra care when driving. At refusal of some components of system inclusion of the all-wheel drive mode can be blocked!
  • Can lead use of the modes 4H and 4LO at the movement on a dry firm paving to operation of a control lamp — if the AUTO or 4N mode is activated, transfer the switch 4WD to situation 2WD; at the included mode 4LO the movement should be stopped, to transfer transmission to situation "N" and only then to switch in the mode 2WD. If performance of the ordered actions does not lead to shutdown of a control lamp, the car should be driven away on car repair shop!
  • Operation of the car at the control lamp of 4WD blinking in the chastoprobleskovy mode it is fraught with failure of the transfer case!

"on the page back
2.5.8. Features of driving of the car with automatic transmission
on the following page"
2.5.10. Instructions for use control system of speed (tempostaty)




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