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Climate Control: Removal & Installation Honda Odyssey IV

Automatic HVAC System 7 illustrations ~832 words

A/C Refrigerant Oil Replacement

Recommended PAG oil: DENSO ND-OIL 8

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

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

  1. To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
  2. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
  3. 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 Compressor Replacement

EX model: (see A/C COMPRESSOR REPLACEMENT )

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.

Scheme 32

Scheme 32: '07 model
Scheme 32: '07 model

Scheme 33

Scheme 33
Scheme 33

Scheme 34

Scheme 34
Scheme 34

Scheme 35

Scheme 35
Scheme 35
  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. Recover the refrigerant with a recovery/recycling/charging station (see «REFRIGERANT RECOVERY»(ref-294720-S42874066802008081300000) ).
  3. Remove the engine cover (see step 9 on «ENGINE REMOVAL»(ref-294701-S37258878062008081300000) ), and the drive belt (see «DRIVE BELT REPLACEMENT»(ref-294692-S07840906932008081300000) ).
  4. Remove the splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(ref-294736-S31954903752008081300000) ). Remove the clips (A) and bolt from the right front inner fender (B). Then move the right front inner fender to the rear.
  5. Disconnect the A/C compressor clutch connector (A). Remove the bolt and the nut, then disconnect the suction line (B) and discharge line (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
  6. Remove the mounting bolts, then detach the A/C compressor (A). Remove the mounting bolts, then slide up the A/C compressor bracket (B).
  7. Remove the A/C compressor (A).
  8. Install the A/C compressor in the reverse order of removal, and note these items: Inspect the A/C lines for any signs of contamination. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it (see «A/C REFRIGERANT OIL REPLACEMENT»(ref-294720-S29559576122008081300000) ). A hew A/C compressor comes with a full charge of oil. Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage. Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only. 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 the refrigerant oil contacts the paint, wash it off immediately. Charge the system (see «SYSTEM CHARGING»(ref-294720-S30399004992008081300000) ).

Scheme 36

Scheme 36: '08-10 models
Scheme 36: '08-10 models

Scheme 37

Scheme 37
Scheme 37

Scheme 38

Scheme 38
Scheme 38
  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. Recover the refrigerant with a recovery/recycling/charging station (see «REFRIGERANT RECOVERY»(ref-294720-S42874066802008081300000) ).
  3. Remove the engine cover (see step 9 on «ENGINE REMOVAL»(ref-294701-S37258878062008081300000) ), and the drive belt (see «DRIVE BELT REPLACEMENT»(ref-294692-S07840906932008081300000) ).
  4. Remove the drive belt auto-tensioner (see «DRIVE BELT AUTO-TENSIONER REPLACEMENT»(ref-294692-S36472710932008081300000) ).
  5. Remove the splash shield (see «FRONT SPLASH SHIELD REPLACEMENT»(ref-294736-S31954903752008081300000) ). Remove the clips (A) and bolt from the right front inner fender (B). Then move the right front inner fender to the rear.
  6. Disconnect the A/C compressor clutch connector (A). Remove the bolt and the nut, then disconnect the suction line (B) and discharge line (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
  7. Remove the mounting bolts and the A/C compressor.
  8. Install the A/C compressor in the reverse order of removal, and note these items: Inspect the A/C lines for any signs of contamination. If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it (see «A/C REFRIGERANT OIL REPLACEMENT»(ref-294720-S29559576122008081300000) ). A new A/C compressor comes with a full charge of oil. Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage. Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only. 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 the refrigerant oil contacts the paint, wash it off immediately. Charge the system (see «SYSTEM CHARGING»(ref-294720-S30399004992008081300000) ).

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