Acura RL. Manual - part 582

Fig. 141: Identifying Passenger's Heater Duct, Expansion Valve, Heater Core And Heater Core 
Cover 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

15. Install the heater core and the evaporator core in the reverse order of removal.  

16. Install the heater unit in the reverse order of removal, and note these items: 



Do not interchange the inlet and outlet heater hoses, and install the hose clamps securely.  



Refill the cooling system with engine coolant (see COOLANT CHECK ).  



Adjust the heater valve cable (see HEATER VALVE CABLE ADJUSTMENT ).  



Make sure that there is no coolant leakage.  



Make sure that there is no air leakage.  



Refer to evaporator core replacement (see EVAPORATOR CORE REPLACEMENT ).  



Reset the power window control unit (see RESETTING THE POWER WINDOW 
CONTROL UNIT ).  



Do the steering column position memorization (see STEERING COLUMN POSITION 
MEMORIZATION ).  



Enter the anti-theft codes for the audio system and the navigation system (if equipped).  



Set the clock.  

HEATER VALVE CABLE ADJUSTMENT 

1. From under the hood, open the cable clamp (A), then disconnect the heater valve cable (B) from the 

heater valve arm (C). 

 

2007 Acura RL 

2005-08 HVAC HVAC - RL

  

me 

 

Friday, June 05, 2009 2:25:43 PM

Page 111  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 142: Identifying Cable Clamp, Heater Valve Cable And Heater Valve Arm 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

2. From under the dash, disconnect the heater valve cable housing from the cable clamp (A), and 

disconnect the heater valve cable (B) from the air mix control linkage (C). 

Fig. 143: Identifying Cable Clamp, Heater Valve Cable And Air Mix Control Linkage 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

3. Set the temperature control button to Max Cool (Lo) with the ignition switch ON (II).  

4. Attach the heater valve cable (B) to the air mix control linkage (C) as shown in step 2. Hold the end of 

the heater valve cable housing against the stop (D), then snap the heater valve cable housing into the 
cable clamp (A). 

5. From under the hood, turn the heater valve arm (A) to the fully closed position as shown, and hold it. 

Attach the heater valve cable (B) to the heater valve arm, and gently pull on the heater valve cable 
housing to take up any slack, then install the heater valve cable housing into the cable clamp (C). 

NOTE:

Make sure the ring-end of the cable is pushed all the way to the base of 
the pin on air mix control linkage.

 

2007 Acura RL 

2005-08 HVAC HVAC - RL

  

me 

 

Friday, June 05, 2009 2:25:43 PM

Page 112  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 144: Identifying Heater Valve Arm, Heater Valve Cable And Cable Clamp 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

A/C COMPRESSOR REPLACEMENT 

1. If the A/C compressor is marginally operable, run the engine at idle speed, and let the air conditioning 

work for a few minutes, then shut the engine off.  

2. Make sure you have the anti-theft codes for the audio system and the navigation system (if equipped). 

3. Make sure the ignition switch is OFF, then disconnect the negative cable from the battery.  

4. Recover the refrigerant with a recovery/recycling/ charging station (see REFRIGERANT 

RECOVERY ).  

5. Remove the engine cover (see IGNITION COIL REMOVAL/INSTALLATION ), and the 

alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).  

6. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B). Remove 

the clips (C). Disconnect the connector (D) from the radiator fan control unit. Loosen the lower 
mounting bolts, then remove the upper mounting bolts. Detach the reserve tank (E) from the frame. 
Remove the A/C condenser fan shroud. Be careful not to damage the radiator fins when removing the 
A/C condenser shroud. 

NOTE:

Do not install the A/C compressor into a system unless you are completely 
sure that the system is free of contamination. Installing the A/C compressor 
into a contaminated system can result in premature A/C compressor failure.

 

2007 Acura RL 

2005-08 HVAC HVAC - RL

  

me 

 

Friday, June 05, 2009 2:25:43 PM

Page 113  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 145: Identifying A/C Condenser Fan Shroud With Torque Specifications 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

7. Disconnect the A/C compressor clutch connector (A). Remove the bolts and the nuts, then disconnect 

the suction hose (B) and discharge hose (C) from the A/C compressor. Plug or cap the lines 
immediately after disconnecting them to avoid moisture and dust contamination. 

Fig. 146: Identifying A/C Compressor Clutch Connector, Suction Hose And Discharge Hose 
With Torque Specifications 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

8. Remove the mounting bolts and the A/C compressor (A). Be careful not to damage the radiator fins 

when removing the compressor. 

 

2007 Acura RL 

2005-08 HVAC HVAC - RL

  

me 

 

Friday, June 05, 2009 2:25:43 PM

Page 114  © 2005 Mitchell Repair Information Company, LLC.