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Home >> Smart >> 2015 >> Fortwo Electric Drive, 2D Convertible >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 451 Chassis >> Testing & Repair >> Remove and install air conditioning control and operating unit >> Remove and install air conditioning control and operating unit - AR83.25-P-1124MCC

Remove and install air conditioning control and operating unit - AR83.25-P-1124MCC

MODEL 451.3/4 up to 30.8.10 

with CODE (I01) Air conditioning Plus 

except CODE (P02) car2go 

MODEL 451.3 

with CODE (I01) Air conditioning Plus with CODE (P02) car2go 

with instrument panel up to production date 30.8.10 

Fig 1: Identifying Air Conditioning Control And Operating Unit Remove/Install Components
G10979015Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1.1 Remove center stowage compartment on center part of dashboard On vehicles without code (C50) smart radio 10 or without code (C57) smart radio 9 or without code (527) High-Line radio or without code (P02) car2go. AR68.10-P-1620MCC
1.2 Remove radio On vehicles with code (C50) smart radio 10 or with code (C57) smart radio 9 or with code (527) High-Line radio or with code (P02) car2go.
* not for USA
AR82.60-P-7502MCC
    * for USA only AR82.60-P-7502MCU
2 Turn air distribution control lever (1) to footwell ventilation position    
3 Set temperature control lever and fan stage control lever to center position    
4 Remove screws (2) on heater/air conditioning operating unit (N23)    
5 Use a suitable screwdriver (5) to release bracket (arrow) of flexible shaft (3) and detach flexible shaft (3) from guide wheel (4)    
6 Detach electrical connector (6) from heater/air conditioning operating unit (N23)    
7 Release locks (8) and detach electrical connectors (7)    
8 Remove heater/air conditioning operating unit (N23)    
9 Remove flexible shaft (3) When the operating unit is replaced Heater/AC (N23). AR83.10-P-1401MCC 
10 Install in the reverse order    
11 Perform function test on heater/air conditioning operating unit (N23)