Stages of automatic transmission repair in Daewoo Matiz:
1. Diagnostics
* Read fault codes
*Visually inspect the transmission for leaks or damage
* Checking the level and condition of the transmission fluid
2. Removing the gearbox
* Disconnecting electrical wiring, cables and hoses
* Unscrewing the gearbox mounts to the engine and subframe
* Carefully remove the gearbox
3. Disassembly and troubleshooting
* Disassembling the gearbox into individual components
* Carefully inspect parts for wear, damage or defects
*Identification of faulty or worn parts
4. Repair
* Replacement of faulty or worn parts (such as torque converter, clutches, solenoids)
* Cleaning internal components and removing metal shavings
* Repair or replace damaged housings or other components
5. Assembly
* Reassembling the gearbox in reverse order
* Installation of new gaskets and seals
*Transmission adjustment and calibration
6. Installation
* Installing the gearbox on the car
* Connecting electrical wiring, cables and hoses
* Torque all fasteners to specifications
7. Filling with liquid and checking
* Filling the gearbox with transmission fluid
* Checking the fluid level and condition
* Running in the car and checking the operation of the gearbox
8. Adjustment and calibration (if necessary)
* Using a scanner to adjust solenoids and other transmission components
* Ensure correct gear shifting and smooth operation
Additionally:
* It is recommended that the transmission fluid and filter be replaced every time the transmission is serviced.
* Automatic transmission faults can be complex and require special tools and equipment. Therefore, it is better to entrust repairs to a qualified mechanic.