Installation details of the stepper motor (M2/5) for the air circulation mode switching damper drive
1. On models with the corresponding configuration (code ET2), activate the service mode of the TELE AID emergency call system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
2. Disconnect the negative cable from the battery.
3. Remove the glove box (see Chapter Body).
4. Remove the three mounting screws (1) (tORX type heads), disconnect the connector (3) of the electrical wiring and remove the electric motor (M2/5) of the circulation mode switching flap drive from the evaporator casing.
5. Installation is carried out in the reverse order. On models with the corresponding configuration, do not forget to deactivate the service mode of the TELE AID system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
6. Finally, the electric motor (M2/6) of the left mixing flap should be normalized using the STAR DIAGNOSIS reader - contact a Mercedes-Benz service station for assistance.
7. Do not forget to also clear the memory of the on-board diagnostic system processor (see Chapter Engine electrical systems).
8. Make sure that the air conditioning system is functioning properly.