B2CI09K1 - 406D9 4HP20 AUTOMATIC GEARBOX

DRAINING/REFILLING/CHECK OF LEVEL OIL

1 - FOREWORD

The (4HP20) autoadaptive automatic gearbox is lubricated for life .

2 - SPECIAL TOOLS

[1]Filling assembly (-).0341 .

[1a] Filling cylinder (-).0341-A .

[1b] Adaptor without gauge (-).0341-B .

[2] DIAG 2000 .

[3] Pliers (-).0170-Y .

3 - DRAINING

Prior conditions :

• draining to be carried out when hot to eliminate impurities suspended in the oil

Draining is partial because the torque converter cannot be drained completely .

On draining, approximately 3 litre(s) are removed .

Drain plug (1) .

Tighten the cap (1) to 4,5 da.Nm .

4 - REFILLING

IMPERATIVE : use only ESSO LT71141 fluid .

Place the vehicle on a lift .

Move aside: The air cleaner assembly .

IMPERATIVE : leave the air temperature sensor connected .

Remove: The breather assembly (2), Using the tool [3] .

Raise the vehicle .

Remove the oil level plug (3) .

Using the tool [1], pour new oil through the breather hole, until it runs out of the oil level hole .

Start the engine, Idling speed, (Press the brake pedal), Take the gear lever though all the gear change positions, return to P .

Add oil until it runs out of the oil level hole .

Close the oil level hole .

Stop the engine .

IMPERATIVE : check the oil level (refer to section on check) .

5 - CHECK

IMPERATIVE : use only ESSO LT 71141 fluid .

5 - 1 - PRIOR CONDITIONS

Check absence of faults using the diagnostic equipment [2] .

Place the vehicle on a lift, Vehicle level .

Gear lever in position P, Without handbrake .

Major power consuming equipment disconnected .

Connect the diagnostic equipment .

Select the parameter measurement function .

Ensure, before starting this operation, that the oil temperature is below 55 degrees C, if it is not, allow the oil to cool .

Press the brake pedal .

Start the engine (Idling speed), Take the gear lever though all the gear change positions, return to P .

Engine running: At a temperature of 55 ± 1 degrees C, open the oil level plug (3) .

Wait for the temperature to reach 60 ± 1 degrees CC .

1st possibility :

• the oil flows, the level is correct
• refit the oil level plug (3); tightening torque 2,5 da.Nm

2nd possibility :

• the oil does not flow
• refit the oil level plug (3)
• add 0,5 litre(s) of oil (refer to section on: refilling)
• resume the checking procedure for the oil level

Refit the metal part of the breather (2) using a 18 mm diameter punch and a hammer .

Clip the plastic portion of the breather (2) .