Q: How to Replace the Receiver-Drier on a Jeep Compass with an R-134a System?
A: When replacing entire components, additional refrigerant oil must be added equal to the amount that is removed with the component being replaced. Read the label on the oil container to verify compatibility with the R-134a system before adding any to the system. On 2014 late-build models and all later models, the A/C Accumulator is not separately serviceable from the condenser. If there is a problem with the A/C Accumulator, the condenser must be replaced. To remove the A/C Accumulator, have the system discharged and the refrigerant recovered by an air conditioning technician. Loosen the right-front wheel lug nuts, set the parking brake, raise the front of the vehicle, and support it securely on jackstands. Remove the right front wheel and the inner fender splash shield retainers to gain access to the A/C Accumulator. Remove both line fittings from the A/C Accumulator, plug all openings immediately to prevent contamination, and remove the mounting fastener retaining the A/C Accumulator to the mounting bracket. Loosen the mounting strap and remove the A/C Accumulator. To install, new O-rings should be installed onto the line fittings and lightly coated with the correct refrigerant oil. Only use O-rings designed specifically for A/C system applications. If replacing the A/C Accumulator with a new unit, add 0.7-ounce (20 ml) of refrigerant oil to the replacement. Finally, have the system evacuated, recharged, and leak tested by the shop that discharged it.