Adaptation procedure
- Check DTC memory of operating and display module, Climatronic Control Module J255 → Diagnostic Trouble Code (DTC) Memory, checking (function 02) and eliminate any other malfunctions displayed.
- Check coding of operating and display module, Climatronic Control Module J255 for vehicle-specific optional extras and correct if necessary → Climatronic Control Module J255, coding (function 07) .
Indicated on display of Diagnostic Operation System VAS 5051A :
- Select function "10 - Adaptation".
Indicated on display of Diagnostic Operation System VAS 5051A :
Fig 2: Identifying Diagnostic Operation System VAS 5051A (Prompt For Entering Display Group Appears In Display Zone & Input Keypad Appears In Display Zone)
- Prompt for entering channel number appears in display zone - 1 -.
- Input keypad appears in display zone - 2 -.
- Use input keypad in display zone - 2 - to enter "8" for channel "08" and confirm by touching Q key.
NOTE:
- Possible causes if display zone - 1 - indicates "Function unknown or cannot be implemented at present" :
- - Control unit adaptation not performed as specified and in full
- Malfunction on CAN-Bus comfort system
Indicated on display of Diagnostic Operation System VAS 5051A :
Fig 3: Identifying Diagnostic Operation System VAS 5051A "Channel X Reading And Testing", Set Value & Code Number
- Display field - 1 - indicates "Channel 8 reading and testing".
- Display in area - 2 - is e.g. "25%".
- A bar appears in area - 3 - with a code number for the currently valid maximum Fresh Air Blower speed (e.g. "6800" for 25%).
- The bar can be used to alter the Fresh Air Blower speed with telephone operation in the range between 15% to 88%.
NOTE:
- If the bar is used to enter a code number corresponding to a maximum Fresh Air Blower speed of less than 15% or greater than 88%, the code number is displayed but not implemented.
- If the keypad is used to enter a code number greater than approx. "32600", the display is automatically reset to 15% or 25 %.
- New value set for maximum Fresh Air Blower speed with telephone operation appears in area - 2 -.
Basic factory setting: 15% or 25 % (code number currently "6800" for 25 %)
Maximum Fresh Air Blower speed setting with voice recognition: 15% to 88% (code number currently "3840" to "22528")
Entry can also be made by way of keypad.
- Touch key - 4 - (for entry via keypad).
Indicated on display of Diagnostic Operation System VAS 5051A :
Fig 4: Identifying Diagnostic Operation System VAS 5051A "Channel X Reading And Testing", Set Value & Code Number
- Display field - 1 - indicates "Enter adaptation value: 0 to XXXXX".
- Input keypad appears in display zone - 2 -.
- Use input keypad to enter the desired value in the display zone for the maximum Fresh Air Blower speed with "Telephone voice input" function for re-adaptation of the operating and display module, Climatronic Control Module J255.
Basic factory setting: 15% or 25 % (code number currently "6800" for 25 %)
Maximum Fresh Air Blower speed setting with telephone operation: 15% to 88 % (code number currently "3840" to "22528")
NOTE:
- There is no further reduction of the Fresh Air Blower speed in the 88% setting. In this setting, problems may be encountered with voice recognition and clarity of telephone voice input at maximum Fresh Air Blower speed with air routing to the instrument panel vents.
- If the keypad is used to enter a code number corresponding to a maximum Fresh Air Blower speed of less than 15% or greater than 88%, the code number is displayed but not implemented.
- If the keypad is used to enter a code number greater than approx. "32600", the display is automatically reset to 15% or 25 %.
- Reduction of the Fresh Air Blower speed takes effect as of approx. 40% air distribution to the instrument panel vents. The maximum reduction takes place with 100% air to the instrument panel vents.
- Code number entered appears in area - 2 -.
- Confirm entry by touching Q key.
Indicated on display of Diagnostic Operation System VAS 5051A :
Fig 5: Identifying Diagnostic Operation System VAS 5051A "Channel X Reading And Testing", Set Value & Code Number
- New value for Fresh Air Blower speed with telephone operation appears in area - 2 -.
- Code number entered appears above bar in area - 3 -.
- Store entry by touching key - 5 -.
Indicated on display of Diagnostic Operation System VAS 5051A :
Fig 6: Identifying Diagnostic Operation System VAS 5051A Display "Store Channel X", Original/New Code Number & New Value For Adaptation Channel
- Display field - 1 - indicates "Store channel 8".
- New value for Fresh Air Blower speed with telephone operation appears in area - 2 -.
- Original and new code number for maximum Fresh Air Blower speed with telephone operation appear in area - 3 -.
- Adopt and store entry by touching key - 4 -.
- Display field - 1 - indicates "Store channel 8, value 0 to XXXX stored".
NOTE:
- If a code number corresponding to a maximum Fresh Air Blower speed of less than 15% or greater than 88% is entered, the code number is displayed but not implemented.
- If a code number higher than approx. "32600" is entered, it is ignored by the operating and display module, Climatronic Control Module J255 and 15% or 25 % is stored.
- Touch ← key to return to selection program.
- Check voice recognition with newly entered Fresh Air Blower speed reduction.
- Terminate On Board Diagnostic (OBD) → End Output (function 06) and switch off ignition.
Check voice input and telephone voice recognition as follows:
- Start engine.
- On operating and display module, Climatronic Control Module J255, select "Maximum Fresh Air Blower speed" and "air distribution to instrument panel vents" functions or "Defrost" function.
- Open all instrument panel vents.
- Check function of voice input and telephone voice recognition in this setting.