This procedure covers removal and replacement of the AC condenser on a 2016-2021 Honda Civic with 1.5L turbo engine, including refrigerant recovery, condenser replacement, and system recharge.

Warnings

Tools required

Parts

• AC Condenser × 1 — Use OEM specification
• AC line O-rings × 4 — Use OEM specification
• PAG oil (ND-11) × 1 — Honda ND-11 refrigerant oil
• R-134a refrigerant × 1 — Per system capacity label

Preparation

1. Verify AC system has refrigerant before beginning (compressor engages when AC button pressed)
2. Park vehicle on level surface and engage parking brake
3. Disconnect negative battery terminal and wait 3 minutes for SRS system to discharge
4. Allow engine to cool completely if recently operated
5. Remove engine cover by pulling upward on front edge, then lifting out

Procedure

1. 1

   Recover AC refrigerant
   Connect AC recovery machine to high and low side service ports. Follow machine instructions to completely recover refrigerant from system. Record amount of refrigerant and oil recovered for recharge reference. This step must be completed by EPA-certified technician.
2. 2

   Remove front bumper cover
   Remove 10 plastic clips along top edge of bumper using trim tool. Remove two screws in each wheel well liner. Remove two bolts underneath bumper at each corner. Disconnect fog light connectors if equipped. With assistant, pull bumper cover forward and away from vehicle. Set aside in safe location.
3. 3

   Remove upper radiator cover and grille
   Remove plastic clips securing upper radiator cover. Lift cover upward and remove. Remove grille assembly by releasing clips and removing mounting screws. This provides access to condenser mounting bolts.
4. 4

   Disconnect AC lines from condenser
   Locate AC line connections at top and bottom of condenser. Use line disconnect tool to release fittings. Immediately cap all open lines and condenser ports with clean plastic caps to prevent moisture and contamination entry. Discard old O-rings from fittings.
5. 5

   Remove cooling fan assembly
   Disconnect cooling fan electrical connectors. Remove fan shroud mounting bolts securing fan assembly to radiator. Carefully lift fan assembly upward and out of engine bay. Note: Fan may still be attached to radiator at lower tabs - tilt forward to clear.
6. 6

   Remove condenser mounting bolts
   Locate condenser mounting bolts at upper corners of condenser (typically 2-4 bolts). Remove bolts securing condenser to radiator support brackets. Support condenser while removing final bolt to prevent dropping.
   Torque spec

   Condenser Mounting Bolts12 Nm (9 lb-ft)
7. 7

   Remove old condenser
   Carefully lift condenser upward and tilt forward to clear radiator. Maneuver condenser out through front of vehicle. Inspect radiator for any damage during removal. Drain and measure any remaining oil from old condenser into clean container.
8. 8

   Prepare new condenser
   Remove shipping caps from new condenser immediately before installation. Add appropriate amount of fresh ND-11 PAG oil to new condenser: if old condenser contained less than 1 oz, add 2 oz to new unit; if more than 1 oz was drained, add same amount to new unit. Install new O-rings on AC line fittings, lubricating with thin coat of ND-11 oil.
9. 9

   Install new condenser
   Guide new condenser into position through front opening, tilting to clear radiator. Align condenser mounting holes with brackets on radiator support. Install condenser mounting bolts and tighten to specification using torque wrench.
   Torque spec

   Condenser Mounting Bolts12 Nm (9 lb-ft)
10. 10

    Reconnect AC lines
    Remove caps from AC lines and condenser ports. Verify new lubricated O-rings are properly seated in line fittings. Connect AC lines to condenser ports, ensuring straight alignment to avoid damaging O-rings. Tighten fittings to specification using torque wrench.
    Torque spec

    AC Line Fittings20 Nm (15 lb-ft)
11. 11

    Reinstall cooling fan assembly
    Position cooling fan assembly back onto radiator, engaging lower mounting tabs. Install fan shroud bolts and tighten to specification. Reconnect all cooling fan electrical connectors. Verify fan blades rotate freely without obstruction.
12. 12

    Reinstall grille and bumper
    Reinstall upper radiator cover and grille assembly, securing with clips and screws. With assistant, align front bumper cover and push into position until clips engage body. Reconnect fog light connectors if equipped. Install all bumper mounting bolts and wheel well screws. Install remaining clips along top edge.
13. 13

    Evacuate and recharge AC system
    Connect AC service machine to high and low side ports. Evacuate system for minimum 30 minutes to remove all moisture and air. Perform leak test by holding vacuum for 10 minutes - vacuum should not drop. Recharge system with amount of R-134a specified on underhood label (typically 18-20 oz). Add UV dye if desired for future leak detection.

Reassembly

1. Reconnect negative battery terminal
2. Reinstall engine cover by inserting rear tabs first, then pressing down on front until clips engage
3. Start engine and turn AC to MAX with fan on high
4. Verify AC compressor engages and both cooling fans activate
5. Check all AC line connections for leaks using leak detector or soap solution

Verification

• With engine running and AC on MAX, verify cold air from vents within 2-3 minutes
• Check that AC pressure readings are within normal range (30-45 psi low side, 200-250 psi high side at idle)
• Inspect all AC line connections for signs of refrigerant oil leakage
• Verify cooling fans cycle on and off properly during AC operation
• Test AC performance at various fan speeds and temperature settings
• If UV dye was added, inspect system with UV light for any fluorescent traces indicating leaks

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