Warning: If the automatic transmission has been replaced or overhauled, or the transmission fluid is contaminated, flush the heat exchanger and transmission fluid cooler lines.
If you have a quick-change transmission fluid system, you should use it. If you do not have one, change the transmission fluid as follows.
1. Disconnect the hose that connects the gearbox and the oil heat exchanger (on the radiator side) (Fig. 13.10).
Fig. 13.10. Location of the hose connecting the automatic transmission to the oil heat exchanger
2. Start the engine and drain the transmission fluid through the hose.
Condition: The engine is running at idle speed, the selector lever is in position N.
Warning: The engine must be stopped within one minute after starting. If all the transmission fluid has drained before then, turn off the engine at this point.
Volume of drained liquid: 3.5 l
3. Remove the drain plug from the automatic transmission housing and drain the remaining transmission fluid (Fig. 13.11).
Fig. 13.11. Location of transmission fluid drain plug
Liquid volume: 2.0 l
4. Replace oil filters.
5. Install the drain plug with a new gasket and tighten to the specified torque.
Tightening torque: 32 Nm
6. Using a funnel installed in the oil filler tube, pour in new transmission fluid. Stop pouring fluid if the required amount cannot be poured into the gearbox.
Volume of liquid to be filled: 5.5 l
7. Repeat the steps in step 2
Note: Drain the fluid through the oil cooler hose. Check the used transmission fluid for dirt. If the transmission fluid is contaminated, repeat steps 6 and 7.
8. Pour new transmission fluid directly into the oil filler tube.
Volume of liquid to be filled: 3.5 l
9. Reinstall the hose disconnected earlier in step 1 and firmly insert the dipstick (see Fig. 13.10).
10. Start the engine and let it idle for 1-2 minutes.
11. With the engine running, move the selector lever from position N to all positions and back to position N.
12. Check the transmission fluid level, which should be at the COLD mark on the dipstick (Fig. 13.12). If it is lower, add the required amount of transmission fluid.
Fig. 13.12. Location of COLD marks on the transmission fluid dipstick
13. Drive until the gearbox warms up to 70-80°C. Park the car on a flat horizontal surface. Check the fluid level, which should be between the HOT marks.
Note: The COLD mark on the dipstick is only for reference purposes when the oil level is cold.
14. Securely reinsert the transmission fluid dipstick into place.