Automatic transmission — general description The automatic transmission has four forward gears and one reverse gear. The selector lever can be installed in 7 positions, with two transmission modes possible (normal or sporty). R: Parking. The gearbox is...
Automatic transmission — technical data Gearbox type - AD8 Torque converter - 250 Z Downshift ratio - 74/87 Main gear ratio - 21/73 Speedometer drive gear ratio - 24/20 Gearbox ratios Broadcast Gear ratio Speed in km/h at an engine speed of 1000 min, and...
Automatic transmission operation Different gear ratios in an automatic transmission are achieved by locking certain elements of the planetary gears (6, fig. 7.1). Pic. 7.1. Automatic transmission: 1 - main gear; 2 - hydraulic distributor block; 3 -...
Parts that must be replaced The following parts may not be reused: self-locking nuts; copper gaskets; rubber gaskets.
Operation of vehicles with automatic transmission Car movement The automatic transmission is lubricated under pressure, so it is only provided when the engine is running. Therefore, to prevent serious damage, the following conditions must be met: never drive with the...
Replacing transmission fluid Drain Place a container under the gearbox to collect the drained fluid Remove the plastic engine and gearbox mudguard Differential Transmission fluid is not drained from the differential housing; it is filled at the...
Checking the transmission fluid level The transmission fluid level must be checked as follows. Before checking: - if the automatic transmission pan was removed, fill in 4 liters of transmission fluid or 3.5 liters after a routine change of transmission...
Automatic transmission warning lamp If there is no malfunction, the warning lamp lights up when the ignition is turned on and goes out 3 seconds after starting the engine. If there is a malfunction, the warning lamp lights up continuously after turning on...
Replacing the strainer The filter is used to filter transmission fluid and ensure normal operation of the automatic transmission. Removal Place the vehicle on a 2 or 4 post lift Remove the engine sump protection. Unscrew the plug with the...
Hydraulic distributor Removal Place the vehicle on a 2 or 4 post lift. Remove the engine sump protection Unscrew the plug with the triangular socket B. Vi. 1213 ( 1. Fig 7.4 ) and drain the transmission fluid from the gearbox housing. Remove...
Removing and installing an automatic transmission Removal To remove and install the automatic transmission, you must remove the power unit. Disconnect the connector from the vehicle speed sensor. Release the two engine wiring harness fasteners on the front of the...
Load Potentiometer Programming The load potentiometer is not adjustable. It is only necessary to program the potentiometer to detect the position of the accelerator pedal pressed and released. Connect the Renault XR25 portable diagnostic tool. Switch...
Solenoid valves The shift sequence solenoid valves, modulating solenoid valve and automatic transmission fluid temperature sensor can only be replaced after the hydraulic distributor has been removed. When removing the hydraulic...
The switch for the forced activation of the 1st gear «kick-down» The switch transmits information to the control unit that the accelerator pedal is pressed all the way and overcomes the resistance at the end of its stroke. The need to increase torque leads to forced shifting of the...