NHTSA ID Number: 10201145
Manufacturer Communication Number: B640621
TSB/Document Date: 2021-09-07
Summary
Different air temperatures are felt from left to right out of the front fresh air grilles (air vent). The following fault code is saved in the IHKA (integrated automatic heating/air conditioning system) control unit: 801189 - Engine mixed air right: Initialization fault.
8/3/2021
64 06 21_DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
SIB 64 06 21
DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
2021-07-26
MODEL
E-Series
F39
F44
F48
I01
Model Description
X2 Sports Activity Coupe
2 Series Gran Coupe
X1 Sports Activity Vehicle
i3
Production Date
From SOP to July 28 2020
SITUATION
Different air temperatures are felt from left to right out of the front fresh air grilles (air vent).
The following fault code is saved in the IHKA (integrated automatic heating/air conditioning system) control
unit:
801189 - Engine mixed air right: Initialization fault
CAUSE
Due to the constant pressure on the end stop of the mixed air flap, it may become deformed and in some
cases break off.
As a result, one of the air flap units may no longer move correctly
Copyright ©2021 BMW of North America, Inc.
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64 06 21_DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
CORRECTION
Test operation of the mixed air flap. Repair as needed.
PROCEDURE
In the event of a customer complaint, proceed
as follows.
Follow repair instructions Replacing controller
drive of air mixing flap, front right (M83a) to
access the stepper motor.
Note: On G01 this stepper motor is numbered
M83a. The motor is numbered differently on
different models.
Remove the servomotor of the mixed air flap
adjuster and attempt to turn the mixed air flap
adjuster by hand.
If the mixed air flap adjuster can
be turned by hand, only the
servomotor needs to be replaced. Run
the stepper motor initialization test
plan and allow vehicle to enter sleep
mode. Then reassess the vehicle.
If it is not possible to turn the
mixed air flap adjuster by hand, or only
with great difficulty, the empty housing
of the heating and air-conditioning unit
must be replaced. Observe repair
instructions 64 11 197.
Copyright ©2021 BMW
of North America, Inc.
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8/3/2021
64 06 21_DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
Important: The revision index of the new part
must be 04 or higher! (These images are for
examples only)
Copyright ©2021 BMW of North America, Inc.
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64 06 21_DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
PARTS INFORMATION
Obtain and confirm the part numbers for your specific vehicle by entering the chassis number in either ETK
or AIR which takes into account specific equipment and/or options.
WARRANTY INFORMATION
This Service Information bulletin provides technical, diagnostic, and repair-related information.
Eligible and Covered Work/Repairs
When used to repair a verified defect in materials or workmanship, the repair procedure information
provided in this bulletin is covered under the terms of the BMW New Vehicle Limited Warranty for
Passenger Cars and Light Trucks.
To submit a claim, please follow the established and applicable warranty policy and procedures
(Labor/Part/Sublet - Bulk materials) that apply to the repair being performed.
Select and use the Defect Code below that applies to the work performed:
64 11 72 12 00: Actuator, stratification/ventilation flap, heater/heat exchanger Permanent failure
64 11 69 29 00: Stratification/ventilation flap, heater/heat exchanger Sticking/jammed
Refer to AIR for the flat rate labor operations (including diagnosis) and for the flat rate unit (FRU) allowances
that also apply.
Only one Main labor operation code can be claimed per repair visit.
The labor operation for Replacing the Heating and Air Conditioning Unit (64 11 206/703/205/702) includes
replacing the drained engine coolant and the procedure to extract, evacuate and fill the air conditioning
system.
Based on which one applies to your center, please refer to SI B01 01 20 or B01 07 20 for claiming your
diagnosis work time, job/repair work time (WT), RO/Claim WT and/or repair explanation procedures, unless
otherwise required by State law.
QUESTIONS REGARDING THIS BULLETIN
Technical inquiries
Warranty inquiries
Submit feedback at the top of this bulletin
Please contact the Warranty department by either using the Live Chat that’s
available in the Warranty Documentation Portal or through IDS by selecting
Coverage, Policy, Coding Questions and Mileage Corrections
Copyright ©2021 BMW of North America, Inc.
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Parts inquiries
64 06 21_DIFFERENT AIR TEMP FROM LEFT TO RIGHT OUT OF THE VENT
Submit an IDS ticket to the Parts Department
Copyright ©2021 BMW of North America, Inc.
5/5
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TSB/Document ID: B640621
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:APPLIANCE:AIR CONDITIONER
MFR Component System:
MFR Component Subsystem:
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