B2CI05K1 - 206 AL4 AUTOMATIC GEARBOX
DRAINING/REFILLING/CHECK OF LEVEL OIL
1 - FOREWORD
The (AL4) autoadaptive automatic gearbox is lubricated for life .
All that is required is an oil level check at 60000 km .
Despite that, the automatic gearbox has a system for measuring oil quality .
The AL4 autoadaptive automatic gearbox ECU has an oil wear sensor .
For a given time interval, the counter increases by a certain number of units (of wear) depending on the temperature of the gearbox .
When the counter is exhausted, the gearbox ECU informs the driver of the presence of a fault by the flashing of the Sport and Snow indicator lights on the instrument panel .
Using the diagnostic equipment, the technician checks whether or not it is necessary to replace the gearbox oil .
For any operation requiring a top-up of at least 0,5 litre(s) of gearbox oil, update the oil wear counter by using the diagnostic equipment .
IMPERATIVE : in the case of an automatic gearbox oil change, following flashing of the Sport and Snow indicator lights with a message on the diagnostic equipment: Oil Change to be Carried Out = Yes + counter exhausted at units, fill in the automatic gearbox form ; see SERVICE INFORMATION(s) : repair procedure BVA 4HP20 / AL4 / MB3 number 425 and 399 .
2 - DRAINING
NOTE : gearbox in place ; partial oil change; about 4 litre(s) are removed .
Gearbox oil warm : Remove the bolt (1) (6 sides of 27 mm) .
3 - REFILLING
IMPERATIVE : use only ESSO LT 71141 fluid .
REMOVE THE CAP (2) USING THE TOOL  .
IMPERATIVE : do not remove the bolt (3) .
FILL THE GEARBOX USING THE EQUIPMENT  .
Quantity of oil to use :
IMPERATIVE : for any operation requiring a top-up of at least 0,5 litre(s) of gearbox oil, update the oil wear counter by using the diagnostic equipment ; follow the oil level checking procedure .
4 - CHECK
IMPERATIVE : use only fluid ESSO LT 71141 .
4 - 1 - PRIOR CONDITIONS
Check absence of faults using the diagnostic equipment .
Place the vehicle on a four-post lift .
Gear lever in position P (Without handbrake) .
Connect the diagnostic equipment .
Select the parameter measurement function .
Remove the filler plug (2) .
IMPERATIVE : ADD 0,5 LITRE(S) OF OIL USING THE EQUIPMENT  .
WARNING : do not remove the bolt (3) .
Engine running : Warm the gearbox oil to a temperature between 58° C and 68 ° C .
Engine running : Remove the oil level plug (4) (6 sides of 19 mm) .
The oil runs in a trickle then drips, the level is correct .
IMPERATIVE : updating the oil wear counter .
The oil drips or does not flow at all :
IMPERATIVE : it is essential to add 0,5 litre(s) of oil before carrying out the procedure .