2019 Toyota Corolla A/C Refrigerant and Oil Guide
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick answer
- Refrigerant type: R-1234yf
- Full system charge: 14.1 oz (400g) of R-1234yf
- PAG oil type: PAG 46
- PAG oil amount: 4.1 oz (120mL)
- Low-side service port location: Near the firewall on the passenger side
- High-side service port location: Near the front of the engine compartment on the driver's side
Why R-1234yf matters
The 2019 Toyota Corolla uses R-1234yf refrigerant, which has a much lower global warming potential than the R-134a used in older vehicles. This is good for the environment, but it also means that you can't just top off your system with a can of refrigerant from the auto parts store. R-1234yf is more expensive than R-134a, and it requires special equipment to handle. You'll need to take your Corolla to a qualified shop to have the A/C system serviced.
Recharge procedure
The only way to properly recharge the A/C system on a 2019 Toyota Corolla is to evacuate the old refrigerant and then charge the system with the correct amount of new refrigerant by weight. This is not a job for a DIYer. You'll need to take your Corolla to a qualified shop to have the A/C system serviced.
Common A/C problems for this vehicle
The most common A/C problems for the 2019 Toyota Corolla are compressor failures, condenser issues, and evaporator leaks. These problems can be expensive to repair, so it's important to have the A/C system serviced regularly to prevent them from happening.
When to call a pro
If you're experiencing any problems with your Corolla's A/C system, it's best to take it to a qualified shop to have it diagnosed and repaired. A qualified technician will have the special equipment and training needed to safely and effectively service your A/C system.
Disclaimer: The information in this article is for general informational purposes only and is not a substitute for professional advice from a qualified technician. Always consult with a qualified technician before performing any work on your vehicle's A/C system. You must be EPA 609 certified to work on A/C systems.
Find a certified A/C shop on Repairius.
More specs for the 2019 Toyota Corolla
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2019 Toyota Corolla Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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