Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
8.1. 4-staged automatic transmission
8.1.1. General information
8.1.2. Failure diagnostics of AT - the general information
8.1.3. Electronic and hydraulic control system of 4-staged AT
8.1.4. Removal and installation of transmission
8.1.5. Replacement of an epiploon of lengthening of transmission
8.1.6. Removal and installation of a cooler of ATF
8.1.7. Removal and installation of valvate assembly of a hydraulic contour of management of AT
8.1.8. Removal, check of a state and installation of a driving cable of blocking of switchings
8.1.9. Adjustment of the drive of switching of AT
8.1.10. Adjustment of the sensor switch of provisions of AT/permission of start
8.1.11. Capital repairs of AT
8.2. Transfer case
8.3. Differentials, power shafts / half shafts
8.4. Driveshafts
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment


8.1.1. General information

4-staged AT with electronic control of the RE4R01A type is included in a basic equipment of the Infiniti QX4 cars

In view of complexity of a design of AT, absence on free sale of replaceable internal components, and need of use of the special equipment, authors of the present manual do not recommend to owners of cars to carry out capital repairs of transmission by own forces. In the present Chapter only procedures of diagnostics of the general refusals of transmission, its routine maintenance, adjustments, removals and installations are considered.

Sometimes, in case of serious breakage, it is more reasonable and simpler to replace transmission, than to spend time and funds for restoration of the failed assembly. Regardless of the chosen way of introduction of the refused AT to action, independent performing procedures of its removal and installation will help to cut down substantially expenses (before make sure that transmission really needs recovery repair).

The detailed description of a design and the principles of functioning of transmission is provided in the Management of the ARUS series No. 179 (ISBN 5-89744-069-7).

"on the page back
8.1. 4-staged automatic transmission
on the following page"
8.1.2. Failure diagnostics of AT - the general information