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Acura RL. Manual - part 555

Fig. 3: Identifying Climate Control Component Location (2 Of 3)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:42 PM

Page 3

Fig. 4: Identifying Climate Control Component Location (3 Of 3)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

A/C SERVICE TIPS AND PRECAUTIONS

The air conditioning system uses HFC-134a (R-134a) refrigerant and polyalkyleneglycol (PAG) refrigerant

WARNING:



Compressed air mixed with the R-134a forms a combustible
vapor.



The vapor can burn or explode causing serious injury.



Never use compressed air to pressure test R-134a service
equipment or vehicle air conditioning systems.

CAUTION:



Air conditioning refrigerant or lubricant vapor can irritate your
eyes, nose, or throat.



Be careful when connecting service equipment.



Do not breathe refrigerant or vapor.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:42 PM

Page 4

oil, which are not compatible with CFC-12 (R-12) refrigerant and mineral oil. Do not use R-12 refrigerant or
mineral oil in this system, and do not attempt to use R-12 servicing equipment; damage to the air
conditioning system or your servicing equipment will result. Use only service equipment that is U.L-listed
and is certified to meet the requirements of SAE J2210 to remove R-134a from the air conditioning system.

If accidental system discharge occurs, ventilate the work area before resuming service.

R-134a service equipment or vehicle air conditioning systems should not be pressure tested or leak tested
with compressed air.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.



Always disconnect the negative cable from the battery whenever replacing air conditioning parts.



Keep moisture and dirt out of the system. When disconnecting any lines, plug or cap the fittings
immediately; don't remove the caps or plugs until just before you reconnect each line.



Before connecting any hose or line, apply a few drops of refrigerant oil to the O-ring.



When tightening or loosening a fitting, use a second wrench to support the matching fitting.



When discharging the system, use an R-134a refrigerant recovery/recycling/charging station; don't
release refrigerant into the atmosphere.

A/C REFRIGERANT OIL REPLACEMENT

Recommended PAG oil: DENSO ND-OIL 8



P/N 38897-PR7-A01AH: 120 mL (4 fl.oz)



P/N38899-PR7-A01: 40 mL(1 1/3 fl.oz)

Add the recommended refrigerant oil in the amount listed if you replace any of the following parts.



To avoid contamination, do not return the oil to the container once dispensed, and never mix it with
other refrigerant oils.



Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture
absorption.



Do not spill the refrigerant oil on the vehicle; it may damage the paint; if it gets on the paint, wash it
off immediately.

A/C condenser

(including Dryer Desiccant) ................35 mL (1 1/5 fl.oz)

Evaporator ...............45 mL (1 1/2 fl.oz)

Line or hose .............10 mL (1/3 fl.oz)

Receiver/Dryer

Desiccant .................10 mL (1/3 fl.oz)

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:42 PM

Page 5

Leakage repair .........25 mL (5/6 fl.oz)

A/C compressor .......For A/C compressor replacement, subtract the volume of oil drained from the removed
A/C compressor from 127.5 mL (4 1/3 fl.oz), and drain the calculated volume of oil from the new A/C
compressor: 127.5 mL (4 1/3 fl.oz) - Volume of removed A/C compressor = Volume to drain from new A/C
compressor.

Fig. 5: Removing A/C Compressor Oil
Courtesy of AMERICAN HONDA MOTOR CO., INC.

A/C LINE REPLACEMENT

NOTE:

Even if no oil is drained from the removed A/C compressor, don't drain more
than 50 mL (1 2/3 fl.oz) from the new A/C compressor.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:42 PM

Page 6

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