2024 Jeep Grand Cherokee — A/C Refrigerant & Oil (Capacity, Type, Ports)

Quick answer

• Refrigerant: R-1234yf (Jeep transitioned from R-134a to R-1234yf across the lineup starting mid-2010s; all 2024 Grand Cherokee variants use R-1234yf)
• Factory charge (most common; verify under-hood label):
  • 2-row Grand Cherokee (front A/C only): about 550 g (≈19.4 oz)
  • Grand Cherokee L (3-row) with rear HVAC: typically 800–900 g (≈28–32 oz)
  • 4xe PHEV: similar charge to matching body style; always confirm label due to hybrid packaging
• Oil type and amount:
  • Gasoline models (belt-driven compressor): PAG 46, total system ~120 mL (≈4.0 oz). Use OEM-approved R-1234yf PAG with dye when specified.
  • 4xe PHEV (electric HV compressor): POE (ND-11 equivalent), NOT PAG. Total system typically ~120 mL. Mixing oils can damage the compressor and create HV safety hazards.
  • Component replacement adds vary by part—follow Mopar service info for add-back amounts.
• Service ports (typical WL layout):
  • Low side: On the larger-diameter suction line near the passenger-side firewall/bulkhead.
  • High side: On the smaller liquid line near the condenser at the right-front radiator support.

Note: Capacities can vary by trim, engine, and whether rear A/C is fitted. The under-hood A/C label and Mopar service information are the authority.

Why R-1234yf matters

R-1234yf replaced R-134a in most late-model vehicles due to its dramatically lower global warming potential. For you, this means:

• Cost: R-1234yf is significantly more expensive than R-134a. Expect higher refrigerant cost and shop charges.
• Equipment: Servicing yf systems requires an SAE J2843-certified recovery/recycle/recharge machine and dedicated yf fittings and hoses to avoid cross-contamination.
• Legal and safety: It’s an A2L (mildly flammable) refrigerant with specific handling guidelines. Venting is illegal. EPA Section 609 certification is required for MVAC service.
• Hybrid note: The 4xe’s high-voltage electric compressor uses non-conductive POE oil—PAG oil must not be used. Shops need the correct oil, machine, and procedures.

Recharge procedure (high-level)

• Identify and verify: Read the under-hood label for the exact R-1234yf charge and oil spec for your VIN/trim. Confirm whether the vehicle has rear HVAC and whether it’s a 4xe (oil difference).
• Leak check first: Don’t “top off.” Recover what’s in the system, nitrogen/trace-dye/UV/electronic-leak-check as needed, and repair leaks before recharging.
• Evacuate properly: Connect to the low and high ports. Recover any remaining refrigerant. Pull vacuum to at least 28–29 inHg for 30–45 minutes (longer if the system was open) to boil off moisture. Verify vacuum hold.
• Charge by weight, not by pressure: Use a calibrated R-1234yf machine to meter in the exact weight per the label. Pressure-based charging is inaccurate and can damage components.
• Oil handling: Add only the specified type and amount of oil for components replaced. For 4xe, use POE (ND‑11 type) only. Avoid universal oils/dyes unless explicitly Mopar-approved for yf.
• Final checks: With fans on and A/C commanded MAX, verify clutch/compressor operation, condenser fan performance, vent temps, and both static and stabilized running pressures appropriate for ambient. Check for leaks again.

OEM service info: Refer to Mopar/Jeep service manuals (TechAuthority/DealerCONNECT) for exact capacities by VIN, oil add-back tables (compressor, condenser, evaporator, line sets), procedure steps, and torque specs.

Common A/C problems for this generation

• Refrigerant leaks at the condenser: The WL’s thin microchannel condenser can be vulnerable to stone impacts; look for oily residue near the front bumper.
• Variable displacement compressor control issues: Sticking control valves or low charge can mimic compressor failure with warm vents at idle.
• Evaporator core leaks: Sweet odor or persistent dye in the HVAC case; dash removal is required.
• Rear A/C line leaks (Grand Cherokee L): Long aluminum/rubber runs to the rear unit can corrode or chafe; salt-belt vehicles are more susceptible.
• Service-port and pressure-transducer leaks: Schrader cores and transducer O-rings can seep on yf systems.
• HVAC door actuator faults: Blend/recirc door issues can cause one-side warm air despite a healthy refrigerant charge.

When to call a pro

• The system is empty or quickly loses charge (large leak suspected).
• You don’t have an SAE J2843 yf machine and scale to charge by weight.
• It’s a 4xe PHEV—requires POE oil, HV safety protocols, and hybrid-rated tools.
• Compressor noise, metal contamination, or repeated component failures.
• Rear A/C service (Grand Cherokee L) or evaporator replacement—labor-intensive.

Safety disclaimer: Servicing mobile A/C requires EPA Section 609 certification. Recover/recycle refrigerant; never vent. Wear eye/hand protection and follow OEM procedures. Incorrect refrigerant, oil, or charge amount can damage the system and create safety hazards.

Find a certified A/C shop on Repairius.