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Changing the automatic transmission fluid

Changing the automatic transmission fluid



1. Park the car on a lift. Engage P and apply the handbrake. Diesel: Remove the lower engine cover.


2. Place a receptacle under the car and drain the transmission fluid through the bottom plug. Fit the plug and a new seal. Use protective gloves.

Warning

The oil can be very hot if the car was recently driven. Risk of burn injuries.


3. Undo the banjo nipple on the gearbox for the outlet hose. Plug the outlet hose.

4. Fit a hose from the flushing equipment, part no. 87 91 824, to the gearbox outlet. Lower the car.

5. Fill with 4 l of automatic transmission fluid as specified under Weight, fluid capacity and grade of fluid . See also Automatic transmission, fluid level , Automatic transmission, transmission fluid level without dipstick or Fluid level check, 4-cyl diesel .

6. Place the hose in a graduated receptacle that holds at least 2 l. Start the engine with the selector lever in the P position. Draw off 2 l of used fluid. Turn off the engine.

7. Fill the gearbox with 2 l of new fluid.

8. Start the engine in the P position and drain 1 l of used fluid. Turn off the engine.

9. Raise the car, remove the extension hose and plug the outlet hose. Fit the oil cooler hoses. The hoses should be horizontal so that they do not chafe against the subframe. Use new seals greased with petroleum jelly.

Tightening torque, banjo nipple on gearbox 27 Nm (20 lbf ft)

10. Lower the car to the floor.

11. Depress the foot brake and start the engine with Tech2 connected. Run until the "Read values" TCM menu indicates that the temperature is 80°C. See Automatic transmission fluid level , Automatic transmission, transmission fluid level without dipstick or Fluid level check, 4-cyl diesel . The difference in volume between the max and min marks is as follows: B205, B235: 0.5 l Diesel: 0.3 l. Fit the lower engine cover.