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Remove/install control and operating unit - AR83.40-P-6350GY

MODEL 463.202 /222 /236 /237, 463.247 /248 /254 /270 /271 /303 /340 /341 as of 2.4.07 AAC [KLA] control and operating unit 

MODEL 463.249 as of 1.9.06 AAC [KLA] control and operating unit 

MODEL 463.306 /336 /346 AAC [KLA] control and operating unit 

Fig 1: Identifying Control And Operating Unit & Ashtray Housing
G07740704Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove ashtray housing (1)   AR68.20-P-2400GM
DANGER Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers. AS54.10-Z-0001-01A
2 Disconnect battery ground line Except model 463.236/248 with code (979) Special protection version AR54.10-P-0003G
    Model 463.236/248 with code (979) Special protection version, with code (ZS6) Special protection version FB6, with code (E26) Additional battery 100 Ah incl. cutoff relay
Model 463.236/248 with code (979) Special protection version, with code (ZS7) Special protection version FB7, with code (E26) Additional battery 100 Ah incl. cutoff relay
AR54.10-P-0003PM
NOTES Notes on battery   AH54.10-P-0001-01A
3 Remove AAC pushbutton control unit (N22) IMPORTANT The AAC [KLA] control and operating unit (N22) is bolted on at the bottom and plugged in at the top.
IMPORTANTInstallation:  The AAC control and operating unit (N22) must latch in position audibly.
 
4 Disconnect electrical connectors    
5 Install in the reverse order    
6 Synchronize automatic air conditioning actuator motors IMPORTANT Only if the AAC [KLA] control and operating unit (N22) was replaced.  
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
7 Read out fault memory and erase IMPORTANT STAR DIAGNOSIS
Stored faults which may be caused by removed cables or by a simulation, must be processed and erased in the fault memories after completing the work.
 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A