B2CM36K1 - 206 AL4 AUTOMATIC GEARBOX

REPAIR PROCEDURE MB3/4HP20 AUTOMATIC GEARBOX/(AL4) AUTOADAPTIVE AUTOMATIC GEARBOX

1 - FOREWORD

In order to reduce the number of parts replaced unnecessarily, gearboxes in particular, please follow the procedure below .

2 - REPAIR PROCEDURE

WARNING : photocopy the REPLACEMENT OR ASSISTANCE REQUEST form .

IMPERATIVE : do not carry out any work on the gearbox without the necessary equipment .

2 - 1 - TOOLS REQUIRED

DIAG 2000 or TEP 92 .

Ancillary repair kit(s) :

- MB3 : (-).0333-ZZ automatic gearbox
- 4HP20 : (-).0336-ZZ automatic gearbox
- : (-).0338 autoadaptive automatic gearbox

TRANSMISSION brochure in the MECHANICAL binder and/or CRA in the DIAGNOSTIC binder for the vehicle concerned .

2 - 2 - OPERATION

stage | TEST / action / result | value | yes | no
--- | --- | --- | --- | ---
1 | action dialogue with the customer to be aware of the symptoms of malfunctioning | - | 2 | -
2 | action check that there is no external oil leak (risk of incorrect level) | - | 3 | -
3 | TEST anomaly(ies) | - | 4 | 5
4 | result analysis of the results check faulty component(s) photocopy the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
5 | TEST (AL4) autoadaptive automatic gearbox | - | 6 | 7
6 | result check (A) | - | - | -
7 | action check oil level and condition | - | 8 | -
8 | TEST anomaly(ies) | - | 9 | 10
9 | result analysis of the results check faulty component(s) fill in and return the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
10 | action read the fault codes global test | - | 11 | -
11 | TEST dialogue possible | - | 13 | 12
12 | result fill in and return the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
13 | TEST presence of faults | - | 14 | 15
14 | result analysis of the results check faulty component(s) fill in and return the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
15 | result check (B) | - | - | -

check (A)
stage | TEST / action / result | value | yes | no
--- | --- | --- | --- | ---
1 | action check (A) | - | 2 | -
2 | action read the fault codes | - | 3 | -
3 | TEST dialogue possible | - | 5 | 4
4 | result fill in and return the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
5 | TEST presence of faults global test | - | 6 | 7
6 | result check (B) | - | - | -
7 | TEST oil change required (parameter measurements) | - | 8 | 9
8 | result carry out the oil change and update the oil wear counter | - | - | -
9 | result check (B) | - | - | -

check (B)
stage | TEST / action / result | value | yes | no
--- | --- | --- | --- | ---
1 | action check (B) | - | 2 | -
2 | TEST 4HP20 automatic gearbox | - | 4 | 3
3 | action carry out pedal learning | - | 4 | -
4 | action carry out a road test with the diagnostic equipment (parameter measurements) | - | 5 | -
5 | TEST incorrect value(s) | - | 6 | 7
6 | result analysis of the results check faulty component(s) fill in and return the REPLACEMENT OR ASSISTANCE REQUEST form | - | - | -
7 | TEST check correct | - | - | -

Following analysis and if necessary repair, send the REPLACEMENT OR ASSISTANCE REQUEST form duly completed to the relevant technical helpline :

- 106 : MULHOUSE fax number : 03 89 61 34 23
- 306 : POISSY fax number : 01 30 19 26 94
- 406 : SOCHAUX fax number : 03 81 33 06 70
- 605 : SOCHAUX fax number : 03 81 33 78 17

NOTE : for the Export network, contact your usual technical helpline .

In the case of replacement of the gearbox, attach to it the REPLACEMENT OR ASSISTANCE REQUEST form attached to this document .

2 - 3 - TIME ALLOTTED FOR OPERATION

Vehicle off road : If there is no reply from the helpline within 24 hours, replacement of the necessary parts is authorised .

Vehicle not off road : Time limit extended to 72 hours .