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Home >> Audi >> 1998 >> A8 Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> On Board Diagnostic (OBD) - HVAC, Can & Defrosters >> Automatic Climate Control System, On Board Diagnostic (OBD) >> Code Control Module (function 07) >> Coding variants: >> Coding A/C control head -E87-, model year 2000 and up
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Coding A/C control head -E87-, model year 2000 and up

CODING A/C CONTROL HEAD -E87-, MODEL YEAR 2000 AND UP - VEHICLE CHARACTERISTIC EXPLANATION

Vehicle characteristic Part No. index letter Explanation
Zexel compressor including "H" Coding possibility for compressor with A/C compressor speed sensor -G111-
Nippondenso/Denso compressor beginning with index letter "B" Coding possibility on compressor without A/C compressor speed sensor -G111-
TDI engine beginning with index letter "E" Coding possibility on TDI engine
Air quality sensor -G238- beginning with index letter "J" Software determined by air quality sensor -G238-
Switch for rear window defroster installed in -E87- beginning with index letter "M" Revised version of instrument cluster center
NOTE:
  • A new control head -E87- with part number up to Index "K" is coded to 6-Cyl. engine, USA. Code can only be written over by a valid code. Otherwise coding remains "6-cyl.-engine, USA" confirmed.
  • A new control head -E87- with part number beginning at index letter "M" is coded to "00001." Code can only be written over by a valid code. Otherwise coding remains and DTC memory displays "Control module coded wrong."