A/C - Rear A/C Automatically Switches Itself ON
SI B 64 02 09Heating and Air Conditioning
May 2009
Technical Service
SUBJECT
Rear Air Conditioning is Automatically Reactivated After Sleep Cycle
MODEL
F01, F02 (7 Series) vehicles produced up to August 31, 2009
SITUATION
If the rear automatic air conditioning system is switched off via the controller or via the air volume button on the rear automatic air conditioning system control panel, the system is automatically switched back on after the vehicle enters Bus idle mode.
CAUSE
Rear automatic air conditioning control panel; the "rear automatic air conditioning system ON" status is stored for 15 minutes after the ignition has been turned "OFF".
CORRECTION
Use the "Conversion" option in ISTA/P and select "Conversion, activate OFF memory beyond after-run".
This modification can be used to leave the "ON" status of the rear automatic air conditioning system permanently switched off.
Note that ISTA/P will automatically reprogram and code all programmable control modules that do not have the latest software.
Refer to CenterNet > Aftersales Portal > Service > Workshop Technology > Vehicle programming for information about ISTA/P.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
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