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Home >> Mercedes Benz >> 2012 >> S600 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 221 Chassis - 2 Of 3 >> Testing & Repair >> Remove/install air conditioner housing - AR83.30-P-5200SX

Remove/install air conditioner housing - AR83.30-P-5200SX

MODEL 216.3, 221.0/1 

Fig 1: Identifying Air Conditioner Housing Remove/Install Components - Shown On Model 221 (1 Of 3)
G10113008Courtesy of MERCEDES-BENZ USA

Shown on model 221 

Fig 2: Identifying Air Conditioner Housing Remove/Install Components - Shown On Model 221 (2 Of 3)
G10113009Courtesy of MERCEDES-BENZ USA

Shown on model 221 

Fig 3: Identifying Air Conditioner Housing Remove/Install Components - Shown On Model 221 (3 Of 3)
G10113010Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
NOTES Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-N-0005-01A
1 Drain coolant at radiator Engine 272, 273 AR20.00-P-1142SX
Engine 275 AR20.00-P-1142H
Engine 156 AR20.00-P-1142SMG
Engine 629 AR20.00-P-1142SXD
Engine 642 AR20.00-P-1142SXI
NOTES Notes on coolant AH20.00-N-2080-01A
2 Discharge air conditioning system INSTALLATION IMPORTANT Evacuate, refill and check air conditioner for leaks and proper operation. AR83.30-P-1760SX 
3 Remove cover above brake booster Model 221.095/195  
4 Remove cover of high-voltage battery Model 221.095/195  
5 Cover working area with rags and detach hot water hoses (2) from connection lines to heat exchanger    
6 Seal connection lines to heat exchanger SPECIAL TOOL Fig 4
7 Detach refrigerant lines from high-voltage battery and seal connections Model 221.095/195  
SPECIAL TOOL Fig 4
8 Detach low-pressure line (6), seal openings of low-pressure line (6) and expansion valve INSTALLATION IMPORTANT Renew sealing ring of low-pressure line (6) and moisten with compressor oil.  
TORQUE SPECIFICATION *BA83.30-P-1001-01K 
9 Detach high pressure line (8), seal openings of high pressure line (8) and expansion valve INSTALLATION IMPORTANT Renew sealing ring of high-pressure line (8) and moisten with compressor oil.  
TORQUE SPECIFICATION *BA83.30-P-1002-01K 
10 Remove crossmember below dashboard   AR68.10-P-1120SX
11 Remove center console Model 216 AR68.20-P-2000SC
Model 221 up to 31.5.09 except for CODE (800) Model year 2010 AR68.20-P-2000SX
Model 221 as of 1.6.09 or with code (800) Model year 2010 AR68.20-P-2000SXH
12 Undo bolts (9) and remove rear bracket (10) over air duct (11). On model 221 without code (582) Rear air conditioner, model 216  
13 Remove air duct (11) from air conditioner housing (1) On model 221 without code (582) Rear air conditioner, model 216  
14 Remove left sound deadening mat over steering column tube and air duct (12) of instrument cluster/COMAND display additional fan (M4/13)    
15 Disconnect electrical connector (17)    
16 Fold over damping mat on air conditioner housing (1) and remove bolts (13) of electrical wiring harness bracket    
17 Detach electrical connectors on AAC [KLA] control unit (N22/1)    
18 Detach electrical wiring harness from air conditioner housing (1) blower motor and disconnect electrical connector (14)    
19 Pull right footwell floor covering to one side, detach power ground (electronics) (W15) from body and detach condensation water drain hose (15) from air conditioner housing (1)    
20 Pull left footwell floor covering to one side and detach condensation water drain hose (16) from air conditioner housing (1)    
21 Expose electrical wiring harnesses surrounding the air conditioner housing (1)    
22 Remove air conditioner housing (1) out of the vehicle with assistant NOTES When removing or installing the vehicle's air conditioner housing (1), always do so carefully with an assistant, in order to avoid any damage to the interior and the air conditioner housing (1).
INSTALLATION IMPORTANT Replace sealing between air conditioner housing (1) and firewall. Grease mountings of air conditioner housing (1) on firewall.
 
Long-life grease *BR00.45-Z-1001-06A 
23 Install in the reverse order    
24 Teach in and normalize the actuator motors IMPORTANT Menu item: control unit adaptations, teach in actuator motors, normalize actuator motors.  
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
AIR CONDITIONING

Number Designation Model 221 Model 216
BA83.30-P-1001-01K Nut for low-pressure line to high-pressure line Nm 8 8
BA83.30-P-1002-01K Nut for high-pressure line to expansion valve Nm 8 8
Fig 4: Identifying Set Of Protective Covers (001 589 01 91 00)
G07742161Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1001-06A Long-life grease A 000 989 63 51 11